JP2003253644A - Bank protection structure - Google Patents
Bank protection structureInfo
- Publication number
- JP2003253644A JP2003253644A JP2002055815A JP2002055815A JP2003253644A JP 2003253644 A JP2003253644 A JP 2003253644A JP 2002055815 A JP2002055815 A JP 2002055815A JP 2002055815 A JP2002055815 A JP 2002055815A JP 2003253644 A JP2003253644 A JP 2003253644A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- wall
- steel
- piles
- steel pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Revetment (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、土木建築分野にお
ける河川・港湾・構造物を中心とする、護岸・係船岸・
土留め構造あるいは防波堤,導流堤、または河川や山岳
部等の陸上部における土留め壁や砂防ダム等の壁体構造
にも適用可能な護岸構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revetment, mooring shore, mainly in rivers, harbors and structures in the field of civil engineering and construction.
The present invention relates to an earth retaining structure or a breakwater, a dike, or a seawall structure applicable to a wall structure such as an earth retaining wall or a sabo dam in a land portion such as a river or a mountain.
【0002】[0002]
【従来の技術】(1)「港湾の施設の技術上の基準・同
解説」(社団法人日本港湾協会1999)第8編係留施
設 第7章 鋼矢板セル式係船岸または、第8章鋼板セ
ル式係船岸に示される通り、護岸等での土圧に抵抗する
ため、複数の鋼矢板や鋼板を円環状に併合したセル内に
中詰め土を充填された剛壁体が、主に自体の重量により
背面土からの土圧等の外力に抵抗する重力式の護岸や係
船岸構造が知られている。[Prior Art] (1) "Technical standards and explanations for port facilities" (Japan Port Association 1999) 8th mooring facility Chapter 7 Steel sheet pile cell type mooring shore or Chapter 8 Steel plate cell As shown on the mooring berth, in order to resist earth pressure on revetments, etc., the rigid wall body filled with filling soil is mainly used in the cell in which multiple steel sheet piles or steel plates are annularly merged. Gravity type seawalls and mooring shore structures that resist external forces such as earth pressure from the back soil due to their weight are known.
【0003】図24で説明すると、同図は、円筒形の鋼
矢板セルの護岸構造を示し、複数の直線型鋼矢板1を円
筒形に接合した円筒形セル2を基礎地盤に打設して、各
円筒形セル2間を同じく直線型鋼矢板1を接合してなる
一対の円弧状の継手3で連結し、この円筒形セル2と一
対の円弧状の継手3の内部に中詰め材4を充填してい
る。Explaining with reference to FIG. 24, this figure shows a revetment structure of a cylindrical steel sheet pile cell, in which a plurality of linear steel sheet piles 1 are joined in a cylindrical shape to form a cylindrical cell 2 on the foundation ground, The cylindrical cells 2 are connected to each other by a pair of arc-shaped joints 3 formed by joining the linear steel sheet piles 1, and the filling material 4 is filled inside the cylindrical cells 2 and the pair of arc-shaped joints 3. is doing.
【0004】(1)特公平56−93911号(軟弱地
盤用セル)では、鋼板セル式係船岸の軟弱地盤における
セル本体の沈下を抑制するため、地中に基礎杭を打設
後、当該基礎杭の上部に鋼板を円弧状にした部材を円形
に併合した鋼板セル構造を設 置し、セル内に中詰め土
を充填する方法が示されている。(1) In Japanese Examined Patent Publication No. 56-93911 (cells for soft ground), in order to suppress the subsidence of the cell body in the soft ground of the steel plate cell mooring shore, after the foundation piles have been driven into the ground, the foundation A method of installing a steel plate cell structure in which circular arc steel members are combined in a circular shape at the top of a pile and filling the cells with filling soil is shown.
【0005】(2)特公平56−108255号(護岸
工法)では、土圧等の外力に対する抵抗力を高めるた
め、セル等の重力式の護岸と基礎地盤中に打ち込んだ杭
を一体化することにより、重力式構造の自重による抵抗
と、杭の水平抵抗により背面からの土圧等の外力に抵抗
する構造が示されている。(2) In Japanese Examined Patent Publication No. 56-108255 (revetment construction method), in order to enhance resistance to external forces such as earth pressure, a gravity-type revetment such as a cell is integrated with a pile driven into the foundation ground. Shows that the gravity type structure has a resistance due to its own weight, and the horizontal structure of the piles resists an external force such as earth pressure from the back surface.
【0006】(3)また、「港湾の施設の技術上の基準
・同解説」(社団法人日本港湾協会1999)第8編係
留施設 第17章 その他の形式の係船岸17.5には
二重矢板式係船岸には、鋼矢板を2列に平行に地盤に打
設し、相対する2列の鋼矢板の上部をPC鋼線等のタイ
材で連結し、2列の鋼矢板間に中詰め土を投入し充填す
る、係船岸構造が示されている。(3) Also, "Technical Standards and Explanations for Port Facilities" (Japan Port Association 1999), Volume 8, Mooring Facilities Chapter 17, Other types of mooring shore 17.5, double At the sheet pile berth, steel sheet piles are driven in parallel to the ground in two rows, and the upper portions of the opposing two rows of steel sheet piles are connected by tie material such as PC steel wire, and the middle of the two rows of steel sheet piles is connected. A mooring shore structure is shown in which filling soil is added and filled.
【0007】[0007]
【発明が解決しようとする課題】前記(1)〜(3)の
従来技術には、次の問題がある。(1)は、鋼矢板セル
式係船岸では、その壁体強度は、主に直線矢板を円形に
併合したセル体の中に充填された中詰め材のせん断抵抗
に支配されており、また、護岸としての安定は、前述し
たとおり、セルおよび中詰め材からなる剛壁体の自重に
よる安定により、背面土からの土圧等の外力に抵抗する
構造となっている。The prior arts (1) to (3) have the following problems. (1) is the steel sheet pile cell-type mooring shore, the wall strength is mainly controlled by the shear resistance of the filling material filled in the cell body in which the straight sheet piles are merged in a circle. As mentioned above, the stability of the revetment is a structure that resists external force such as earth pressure from the back soil due to the stability of the rigid wall made of cells and filling material due to its own weight.
【0008】したがって、大規模、大水深の護岸を構築
する場合、大きな土圧に抵抗するために必要な壁体の強
度を確保するために、また、変形を抑制するために、セ
ル径を大きくし、中詰め土の抵抗力を高める必要があっ
た。しかし、セル径の増大にともない、セルに働く円周
方向の引張力が増加し、現状では、直線矢板等の継手部
の強度には制約があるため、一定の規模以上の直径を有
するセルを作成することができないとい問題がある。Therefore, when constructing a large-scale, deep-water revetment, the cell diameter is increased in order to secure the strength of the wall body necessary to resist a large earth pressure and to suppress the deformation. However, it was necessary to increase the resistance of the filling soil. However, as the cell diameter increases, the tensile force in the circumferential direction that acts on the cell increases, and at present, there is a limit to the strength of the joint part such as a straight sheet pile, so a cell with a diameter of a certain scale or more is used. There is a problem that it cannot be created.
【0009】また、壁体前面にマウンド(盛土)を設け
ることにより、セルに働く円周方向の引張力を低減する
ことも可能であるが、マウンドを設けることにより必要
とする護岸の水深が得られなかったり、比較的軟弱な地
盤においては、セルやマウンドの占有面積が大きいと、
セルおよびマウンド下の地盤の沈下を抑制するための地
盤改良範囲が大きくなり、建設コストが増大するという
問題がある。It is also possible to reduce the circumferential tensile force acting on the cell by providing a mound (embankment) on the front surface of the wall, but by providing the mound, the required water depth of the revetment can be obtained. If the area occupied by cells or mounds is large, it is
There is a problem that the range of ground improvement for suppressing subsidence of the ground under the cell and mound becomes large, and the construction cost increases.
【0010】また、該鋼矢板セル式係船岸は、セル体を
地上で組立てる必要があるため、広い組立て用地が必要
であり、セルの設置や打設のためには、クレーン船等の
施工機器が大型化するという問題がある。The steel sheet pile cell-type mooring berth requires a large assembly site because the cell body must be assembled on the ground, and construction equipment such as a crane ship is required for installing and placing the cell. However, there is a problem that it becomes large.
【0011】また、セルを基礎地盤に設置後中詰め材の
充填が完了するまでの施工途上においては、波浪等の外
力に対して不安定であり、施工時の安定性が低いという
問題がある。Further, there is a problem in that during the construction process after the cells are installed on the foundation ground until the filling of the filling material is completed, they are unstable to external forces such as waves and the stability during construction is low. .
【0012】(2)では、杭をセル下端に配置すること
によるセルの沈下を抑制する方法について示している
が、杭によるセルの水平抵抗の増加を図るための方法が
示されていない。したがって、軟弱地盤上に大水深の護
岸を構築する場合等では、(1)に示した様に、水平方
向の土圧に対抗するためにセル径を大きくしたり、マウ
ンドを設置する必要があり、建設コストが増大するとい
う問題がある。In (2), a method for suppressing cell subsidence by arranging the pile at the lower end of the cell is shown, but no method for increasing the horizontal resistance of the cell by the pile is shown. Therefore, when constructing a deep water revetment on soft ground, as shown in (1), it is necessary to increase the cell diameter or install a mound to counter the earth pressure in the horizontal direction. However, there is a problem that the construction cost increases.
【0013】(3)では、セルと杭を一体化することに
よる護岸の水平抵抗を増加させる事例が示されている
が、杭とセルを併用することにより壁体の安定性の向上
や変位を抑制することができるか、(1)に示した通
り、直線矢板や鋼板を円形に併合する必要があり、ま
た、壁体強度を高めるためにはセル径が大きくする必要
があるため、護岸の壁体幅が広くなり、必要な鋼材量や
必要な地盤改良範囲が広くなり、建設コストが高いとい
う問題がある。In (3), an example is shown in which the horizontal resistance of the revetment is increased by integrating the cell and the pile, but by using the pile and the cell together, the stability and displacement of the wall can be improved. Whether it can be suppressed or not, as shown in (1), it is necessary to merge straight sheet piles and steel plates into a circle, and to increase the wall strength, it is necessary to increase the cell diameter. There is a problem that the wall width becomes wider, the required steel material amount and the necessary ground improvement range become wider, and the construction cost is high.
【0014】(4)では、二重矢板式護岸は、2列に打
設された矢板と中詰め土により水平力に抵抗する構造で
あるが、矢板の頭部がタイ材で連結されているだけなの
で、矢板に発生する断面力が大きく、壁体幅も広くなる
ため、必要な鋼材量や地盤改良範囲が広くなり、建設コ
ストが高いという問題がある。また、矢板を連続して打
設する必要があるため、工期が長いという問題がある。In (4), the double sheet pile revetment has a structure that resists horizontal force by two rows of sheet piles and filling soil, but the heads of the sheet piles are connected by ties. Therefore, since the cross-sectional force generated on the sheet pile is large and the wall width is wide, the necessary steel material amount and ground improvement range are wide, and the construction cost is high. Further, since it is necessary to continuously drive the sheet piles, there is a problem that the construction period is long.
【0015】前記(1)〜(4)の問題点を解決した護
岸構造を本出願人によって、特願2000−27013
2号として出願されている。これは、杭式ラーメン構造
と、セル式護岸構造を併用し、護岸構造として安定性に
優れ、遮水性に優れ、施工が容易で、安価な護岸構造を
提案したものである。本発明は、前記の構造形式を用い
て前記利点を生かしつつ、さらに鋼管矢板壁を併用する
ことにより、さらに中詰め土を少なくすることができ、
護岸構造として安定性に優れ、遮水性に優れ、施工が容
易で、安価な護岸構造を提案することを目的とする。The present applicant has proposed a revetment structure which solves the problems (1) to (4) described in Japanese Patent Application No. 2000-27013.
It has been filed as No. 2. This is a proposal of an inexpensive seawall structure that uses both a pile-type rigid frame structure and a cell-type seawall structure, as a seawall structure with excellent stability, excellent water impermeability, easy construction, and low cost. The present invention, while utilizing the above advantages by using the above structural type, by further using the steel pipe sheet pile wall together, it is possible to further reduce the filling soil.
The aim is to propose a revetment structure with excellent stability, water impermeability, easy construction, and low cost as a revetment structure.
【0016】[0016]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る護岸構造は、次のように構成する。In order to achieve the above object, the revetment structure according to the present invention is constructed as follows.
【0017】第1の発明は、所定の間隔で海底地盤等の
地盤に打設された杭によって複数の杭列を平行に構築
し、地中に打ち込まれると共に外側に凸の円弧状に配置
され、相互間が継ぎ手で連結された複数の直線矢板の端
部が前記各杭列におけるいずれか一方の杭列に配置され
ると共にその杭列における隣り合う各杭に連結されて壁
体Aが構成され、地中に打ち込まれると共に直線状に配
置され、相互間が継ぎ手で連結された複数の鋼管矢板の
端部が他方の杭列における隣り合う各杭に連結されて壁
体Bが構成されており、前記各杭列間が連係部材で連繋
され、前記壁体A,B間に中詰め材が充填されたことを
特徴とする。According to a first aspect of the present invention, a plurality of pile rows are constructed in parallel by piles placed on the ground such as a seabed at a predetermined interval, and are driven into the ground and arranged in a convex arc shape to the outside. , The ends of a plurality of straight sheet piles connected to each other by joints are arranged in one of the pile rows in each of the pile rows and are connected to adjacent piles in the pile row to form the wall A. The end portions of the plurality of steel pipe sheet piles that are driven into the ground and are linearly arranged and connected to each other by joints are connected to the adjacent piles in the other pile row to form the wall body B. The pile rows are connected to each other by a linking member, and a filling material is filled between the wall bodies A and B.
【0018】第2の発明は、第1の発明において、前記
杭列間を繋ぐ連係部材は、鋼管やH形鋼等の小型の鋼製
梁部材でユニット化されていて、嵌合によりまたは継手
部材を介して前記杭に連結されたことを特徴とする。In a second aspect based on the first aspect, the linking member for connecting the pile rows is unitized by a small steel beam member such as a steel pipe or H-section steel, and is fitted or fitted. It is characterized in that it is connected to the pile through a member.
【0019】第3の発明は、第1の発明おいて、前記杭
列間を繋ぐ連係部材が、小型で、ユニット化された鉄筋
コンクリートや鉄骨鉄筋コンクリートやプレストレスコ
ンクリートのパネルで構成され、継手部材を介して前記
杭に連結されることを特徴とする。In a third aspect based on the first aspect, the linking member for connecting the pile rows is a small-sized unitized panel made of reinforced concrete, steel-framed reinforced concrete, or prestressed concrete. It is characterized in that it is connected to the pile through.
【0020】第4の発明は、前記杭と直線矢板の継手部
間に、アスファルト等のすべりを許容する材料を介在さ
せて連結されたことを特徴とする。A fourth aspect of the invention is characterized in that a material such as asphalt that allows slipping is interposed between the pile and the straight sheet pile joint portion, and they are connected.
【0021】第5の発明は、第1〜4発明における壁体
を構成する直線矢板の代わりに、端部に継手を有する円
弧状の鋼板を用いたことを特徴とする。A fifth aspect of the present invention is characterized in that an arc-shaped steel sheet having a joint at an end is used instead of the straight sheet pile forming the wall body in the first to fourth aspects.
【0022】第6の発明は、第1〜4発明の護岸構造
で、複数の直線矢板または鋼管矢板の相互間を連結する
継ぎ手の間隙に、止水性の高い材料が充填され連結され
たことを特徴とする。第7の発明は、第1〜6発明の護
岸構造で、前記壁体Aと壁体Bのいずれか一方の壁体の
打ち込み深さを、他方の壁体の打ち込み深さよりも深く
したことを特徴とする。第8の発明は、第1〜7発明の
護岸構造で、前記壁体Aが海側に設けられ、前記壁体B
が陸側に設けられ、かつ前記壁体Bの打ち込み深さを、
前記壁体Aの打ち込み深さよりも深くしたことを特徴と
する。A sixth aspect of the present invention is the revetment structure according to any one of the first to fourth aspects of the present invention, in which a material having high water-stopping property is filled and connected in a gap of a joint connecting a plurality of straight sheet piles or steel pipe sheet piles. Characterize. A seventh invention is the revetment structure according to the first to sixth inventions, wherein the driving depth of one of the wall bodies A and B is made deeper than the driving depth of the other wall body. Characterize. An eighth invention is the revetment structure according to the first to seventh inventions, wherein the wall A is provided on the sea side, and the wall B is provided.
Is provided on the land side, and the driving depth of the wall B is
It is characterized in that it is deeper than the driving depth of the wall body A.
【0023】第1発明によると、次の〜の作用効果
がある。
継ぎ手で相互に連結され円弧状に配置された直線矢
板を壁体として用いることにより、外力に対して鋼材を
引張状態で使用することができるため、鋼材を有効に使
用し、壁体を構成する鋼材量の低減化が図れる。また、
鋼管矢板を用いることにより、その剛性が高いので、直
線状に配置して直線状の壁体Bとすることができ、壁体
間の壁厚寸法を小さくすることができと共に、遮水性能
を高めることができる。According to the first invention, the following effects (1) to (3) are provided. By using the straight sheet piles, which are connected to each other by a joint and arranged in an arc, as the wall body, the steel material can be used in a tensile state against an external force, so that the steel material is effectively used to form the wall body. The amount of steel can be reduced. Also,
Since the steel pipe sheet pile has high rigidity, it can be arranged linearly to form the linear wall body B, the wall thickness dimension between the wall bodies can be reduced, and the water impermeability can be improved. Can be increased.
【0024】 各杭列間を鋼管やH型鋼からなる連係
部材で連繋し、前記壁体間に中詰め材を充填することに
より、壁体の強度は中詰め材のせん断強度と連係部材と
杭からなるラーメン構造の強度を合成したものとなるた
め、十分に強固な連係部材を用いることにより、各杭列
間を狭め壁体幅を低減することができる。また、セルの
様に円形に併合する必要がないため、壁体幅を自由に選
択できる。By connecting the pile rows with a connecting member made of a steel pipe or H-shaped steel and filling a filling material between the wall bodies, the strength of the wall body is the shear strength of the filling material and the strength of the connecting member and the pile. Since the strength of the rigid frame structure is composed of, it is possible to reduce the width of the wall by narrowing the space between the pile rows by using a sufficiently strong linking member. In addition, since it is not necessary to merge the cells in a circular shape like cells, the wall width can be freely selected.
【0025】 前記した様に、中詰め材と各杭列間の
連係部材からなる剛壁体と杭とを一体化させることによ
り、杭の水平抵抗を期待できるため、土圧等の外力に対
して壁体構造の安定性を高めるとともに壁体の変位の抑
制が可能となる。As described above, by integrating the rigid wall body made of the filling material and the linking member between each pile row and the pile, horizontal resistance of the pile can be expected, so that it is possible to expect an external force such as earth pressure. The stability of the wall structure can be enhanced and the displacement of the wall structure can be suppressed.
【0026】また、杭体を強固な基礎地盤に根入れする
ことにより、地盤沈下に伴う壁体の沈下を抑制できる。Further, by substituting the pile body into the strong foundation ground, it is possible to suppress the settlement of the wall body due to the ground settlement.
【0027】また、壁体は、連係部材で繋がれた杭式ラ
ーメン構造に取付けるため、中詰め材の充填が完了する
までの間の施工時の波浪等に対する外力に対しても安定
性が高い。Further, since the wall is attached to the pile type rigid frame structure connected by the linking member, it is highly stable against external force against waves and the like during construction until the filling of the filling material is completed. .
【0028】第2発明によると、次のの作用効果があ
る。
各杭列を繋ぐ連係部材として、ユニット化された鋼
製梁部材を用いる場合、連係部材は工場で製作すること
ができるため壁体の急速施工が可能である。また、連係
部材が軽量であるため、大きな施工機械が必要でない。According to the second invention, the following operational effects are obtained. When a unitized steel beam member is used as the linking member that connects the pile rows, the linking member can be manufactured in a factory, so that the wall body can be rapidly installed. Moreover, since the linking member is lightweight, a large construction machine is not required.
【0029】第3発明によると、次のの作用効果があ
る。
連係部材として鉄筋コンクリートパネルや鉄骨鉄筋
コンクリートパネルやプレストレスコンクリートのパネ
ル等を用いることにより、高耐久性を有する連係部材を
安価に製作でき、連係部材を現場で製作することも可能
となる。また、中詰め材の充填は、材料供給・施工機械
の能力に応じて施工する必要がある、連係部材として該
パネル部材を用いることにより、中詰め材施工時の隣接
施工施工区域との隔壁として使用することができる。According to the third invention, the following operational effects are obtained. By using a reinforced concrete panel, a steel frame reinforced concrete panel, a prestressed concrete panel, or the like as the linking member, the linking member having high durability can be manufactured at low cost, and the linking member can be manufactured on site. Also, the filling of the filling material needs to be carried out according to the capacity of the material supply / construction machine.By using the panel member as a linking member, it can be used as a partition wall with the adjacent construction area when the filling material is constructed. Can be used.
【0030】第4発明によると、次のの作用効果があ
る。
前記杭と直線矢板の継手部間に、アスファルト等の
すべりを許容する材料を介在させることにより、中詰め
材の沈下に伴なう、杭の付加的外力の作用を抑制でき
る。According to the fourth aspect of the present invention, there are the following operational effects. By interposing a slip-permitting material such as asphalt between the pile and the straight sheet pile joint, it is possible to suppress the action of the additional external force of the pile accompanying the sinking of the filling material.
【0031】第5発明によると、次のの作用効果があ
る。
壁体を構成する直線矢板の代わりに、端部に継手を
有する円弧状の鋼板を用いることにより、壁体部に継手
が少なくなるため、施工時の安定性が高く、遮水性能が
高めることができる。According to the fifth invention, there are the following effects. By using an arc-shaped steel plate with joints at the ends instead of the straight sheet piles that make up the wall, the number of joints in the wall is reduced, so stability during construction is high and water impermeability is improved. You can
【0032】第6発明によると、次のの作用効果があ
る。
本構造は、直線矢板からなる壁体Aと鋼管矢板から
なる壁体Bが2重に配置されるとともに中詰め材が充填
されているため遮水性の高い構造であるが、複数の直線
矢板の相互間を連結する継ぎ手の間隙に、止水性の高い
材料が充填することにより、壁体部の止水性をさらに高
めることができる。第7発明によると、次のの作用効
果がある。
本構造は、直線矢板からなる壁体Aと鋼管矢板から
なる壁体Bが2重に配置されるとともに中詰め材が充填
されているため遮水性の高い構造であるが、一方の壁体
の打ち込み深さを他方の壁体の打ち込み深さを、例え
ば、壁体の安定性の確保に必要な深さよりも大きくする
ことにより、壁体部下側の止水性も高めることができ
る。第8発明によると、次の作用効果がある。本構造
は、直線矢板からなる壁体Aと鋼管矢板からなる壁体B
が2重に配置されるとともに中詰め材が充填されている
ため遮水性の高い構造であるが、陸側に鋼管矢板からな
る壁体Bに配置し、その壁体の打ち込み深さを、海側に
配置の直線矢板からなる壁体Aの打ち込み深さよりも深
くし、例えば、壁体の安定性の確保に必要な深さよりも
大きくすることにより、鋼管矢板壁の引き抜き抵抗が向
上させると共に、陸側に産業廃棄物処理場を設ける場合
などには、遮水壁として、壁体部下側の止水性も高める
ことができる。According to the sixth aspect of the invention, there are the following effects. This structure has a high water-impervious structure because the wall body A made of straight sheet piles and the wall body B made of steel pipe sheet piles are doubly arranged and filled with the filling material. By filling the gap between the joints connecting the two with a material having a high water blocking property, the water blocking property of the wall portion can be further enhanced. According to the seventh aspect of the invention, there are the following effects. This structure has a high water impermeability because the wall body A made of a straight sheet pile and the wall body B made of a steel pipe sheet pile are doubly arranged and filled with the filling material. By making the driving depth of the other wall body larger than that required for ensuring the stability of the wall body, for example, the waterproofness of the lower side of the wall body portion can be increased. According to the 8th invention, there are the following effects. This structure is composed of a wall A made of straight sheet piles and a wall B made of steel pipe sheet piles.
It has a structure with high water impermeability because it is doubled and filled with filling material, but it is placed on the wall B made of steel pipe sheet pile on the land side, and the driving depth of the wall is It is deeper than the driving depth of the wall body A made of a straight sheet pile arranged on the side, for example, by making it larger than the depth required for ensuring the stability of the wall body, while improving the pullout resistance of the steel pipe sheet pile wall, When an industrial waste treatment plant is to be installed on the land side, the water blocking function can also be improved as a water blocking wall below the wall.
【0033】[0033]
【発明の実施の形態】本発明の実施形態を図を参照して
詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings.
【0034】図1〜図8は実施形態1を示し、図9〜図
15は実施形態2を示し、図16〜図21は実施形態3
を示す。1 to 8 show the first embodiment, FIGS. 9 to 15 show the second embodiment, and FIGS. 16 to 21 show the third embodiment.
Indicates.
【0035】実施形態1は、海底の基礎地盤10に打設
された杭11によって形成された並行な2列の各杭列に
おける一方の杭列間に鋼矢板壁15Aが構築されると共
に他方の杭列間に鋼管矢板壁15Bが直線状に形成さ
れ、かつ、各杭11で構築される杭列12間が連係部材
16で連繋され、この連係部材16がジャケットタイプ
である点に特長がある。また、実施形態2は、この連係
部材16が鋼製内壁タイプである点に特長があり、実施
形態3は、同じく連係部材16がPCパネルタイプであ
る点に特長がある。以下順に説明する。In the first embodiment, the steel sheet pile wall 15A is constructed between one pile row in each of the two parallel pile rows formed by the piles 11 cast on the seabed foundation ground 10 and the other pile pile wall 15A is formed. The steel pipe sheet pile wall 15B is linearly formed between the pile rows, and the pile rows 12 constructed by the piles 11 are linked by a linking member 16, and the linking member 16 is a jacket type. . Further, the second embodiment is characterized in that the linking member 16 is a steel inner wall type, and the third embodiment is also characterized in that the linking member 16 is also a PC panel type. The following will be described in order.
【0036】なお、実施形態1で云うジャケットタイ
プ、実施形態2で云う鋼製内壁タイプ、実施形態3で云
うPCパネルタイプの各用語は、各実施形態の構造的特
徴を区別して表すために用いたもので、後述の構造説明
から理解される。The terms jacket type used in the first embodiment, steel inner wall type used in the second embodiment, and PC panel type used in the third embodiment are used to distinguish the structural features of the respective embodiments. This is understood from the structure description below.
【0037】図1(A)、(B)は、実施形態1とし
て、護岸壁の端部がストラップタイプ構造の護岸壁を示
す概略平面図と側面図である。FIGS. 1 (A) and 1 (B) are a schematic plan view and a side view showing a revetment wall having a strap type structure in which an end portion of the revetment wall is a first embodiment.
【0038】図2は、要部の全体説明図、図3は、杭列
間を繋ぐ連係部材(例として、鋼製梁部材ユニット)の
杭への挿入時の説明図、図4(A)は図2の鋼製梁部材
ユニットの杭への挿入後の説明図、(B)は、同(A)
の杭と鋼製梁部材ユニットの嵌合状態を示す平面図、
(C)は、一方の杭列に構築される複数の直線矢板から
なる壁体と他方の杭列に構築される複数の鋼管矢板から
なる壁体を示す同(A)の平面図である。FIG. 2 is an overall explanatory view of the main part, and FIG. 3 is an explanatory view when inserting a linking member (for example, a steel beam member unit) for connecting the pile rows into the pile, FIG. 4 (A). Is an explanatory view after inserting the steel beam member unit of FIG. 2 into the pile, and (B) is the same (A).
A plan view showing the fitted state of the pile and the steel beam member unit,
(C) is a plan view of the same (A) showing a wall body composed of a plurality of straight sheet piles constructed in one pile row and a wall body constructed of a plurality of steel pipe sheet piles constructed in the other pile row.
【0039】図5(A)は、ジャケットの主鋼管を介し
て杭と直線矢板との接合構造を示す部分拡大断面図、図
5(B)は、ジャケットの主鋼管を介して杭と鋼管矢板
との接合構造を示す部分拡大断面図、図6は、杭とジャ
ケットの主鋼管との接合構造を示す部分拡大断面図、図
7(A)、(B)、(C)は、護岸壁施工ステップを3
段階で示す斜視図である。FIG. 5 (A) is a partially enlarged sectional view showing the joint structure between the pile and the straight sheet pile through the main steel pipe of the jacket, and FIG. 5 (B) is the pile and steel pipe sheet pile through the main steel pipe of the jacket. 6 is a partially enlarged cross-sectional view showing the joint structure with the pile, and FIG. 6 is a partially enlarged cross-sectional view showing the joint structure between the pile and the main steel pipe of the jacket, and FIGS. 7 (A), (B), and (C) are revetment wall construction. Step 3
It is a perspective view shown at a stage.
【0040】図1を参照して、実施形態1の概要を説明
すると、護岸構造の壁体(後述)を補強する杭11が、
所定の間隔で海底地盤10に打設され、複数の杭11で
2つの杭列12が所定の間隔で、平行に構築されてい
る。The outline of the first embodiment will be described with reference to FIG. 1. A pile 11 for reinforcing a wall body (described later) of a seawall structure is
Two pile rows 12 are piled in the seabed ground 10 at a predetermined interval, and two pile rows 12 are constructed in parallel at a predetermined interval.
【0041】一方の杭列12における、各杭11間に
は、相互間が嵌合継ぎ手13で連結された複数の直線矢
板14が配置され、この直線矢板14Aによって鋼矢板
壁15Aが構築される。鋼矢板壁15Aは外側(例え
ば、沖側)に凸の円弧状に配置され、その両端がジャケ
ットの主鋼管18を介して杭11に連結されている(詳
細は後述する)。また、他方の杭列12における、各杭
11間には、相互間が嵌合継ぎ手13で連結された複数
の鋼管矢板14Bが配置され、この鋼管矢板14Bによ
って鋼管矢板壁15Bが構築される。鋼管矢板壁15B
は直線状に配置され、その両端がジャケットの主鋼管1
8を介して杭11に連結されている。前記一方の鋼矢板
壁15Aは、例えば沖側に形成され、また、他方の鋼管
矢板壁15Bは例えば、陸側の海底地盤に打設されて形
成される。A plurality of straight sheet piles 14 connected to each other by fitting joints 13 are arranged between the piles 11 in one pile row 12, and a steel sheet pile wall 15A is constructed by the straight sheet piles 14A. . The steel sheet pile wall 15A is arranged in an outwardly (for example, offshore) convex arc shape, and both ends thereof are connected to the pile 11 via the main steel pipe 18 of the jacket (details will be described later). Further, between the piles 11 in the other pile row 12, a plurality of steel pipe sheet piles 14B connected to each other by fitting joints 13 are arranged, and a steel pipe sheet pile wall 15B is constructed by the steel pipe sheet piles 14B. Steel pipe sheet pile wall 15B
Are arranged in a straight line, and both ends of the main steel pipe are jackets 1
It is connected to the pile 11 via 8. The one steel sheet pile wall 15A is formed, for example, on the offshore side, and the other steel pipe sheet pile wall 15B is formed, for example, by driving it on the land-side seabed ground.
【0042】また、平行な杭列12の間が連係部材16
で連繋されており、前記鋼矢板壁15Aと前記鋼管矢板
壁15Bとの間のセル空間内に中詰め材17を投入、充
填して護岸壁9が構築されている。図1において、
(イ)が海側、(ロ)が、裏埋め土(砂)が投入される
陸側である。なお、中詰め材には、砂や礫、またはスラ
グ等を用いることができる。The connecting member 16 is provided between the parallel pile rows 12.
The revetment wall 9 is constructed by charging and filling the filling material 17 in the cell space between the steel sheet pile wall 15A and the steel pipe sheet pile wall 15B. In FIG.
(A) is the sea side, and (b) is the land side where backfill soil (sand) is input. Note that sand, gravel, slag, or the like can be used as the filling material.
【0043】護岸壁9の端部構造が、図1(A)、
(B)のストラットタイプの場合は、各杭列12端部の
2本の杭11を4辺形の2つの角部に打設し、他の2つ
の角部にも杭11aを打設し、この4辺形の角に位置す
る各杭11、11a間を斜材(ストラット)20で連結
することで、護岸壁9の端部が構築される。The end structure of the seawall 9 is shown in FIG.
In the case of the strut type of (B), the two piles 11 at the end of each pile row 12 are placed at the two corners of the quadrilateral, and the piles 11a are also placed at the other two corners. The ends of the revetment wall 9 are constructed by connecting the piles 11 and 11a located at the corners of the quadrilateral with the diagonal members (struts) 20.
【0044】本発明の実施形態1〜3に共通の特長は、
、一方の杭列には、直線矢板14Aからなる複数の円
弧状の鋼矢板壁15Aを、継手を介して杭11に連結す
ることで補強していること、また、他方の杭列には、鋼
管矢板14Bからなる複数の直線状の鋼管矢板壁15A
を、継手を介して杭11に連結することで補強している
こと、、各杭列12の間を連係部材16で連結するこ
とで補強していること、、連係部材16は、製作面、
施工面で有利なようにユニット化して構成していること
の3点である。これの詳細を、まず実施形態1の場合に
つき、図2〜図6を参照して説明する。The features common to the first to third embodiments of the present invention are as follows.
, One of the pile rows is reinforced by connecting a plurality of arc-shaped steel sheet pile walls 15A made of straight sheet piles 14A to the piles 11 via joints, and the other pile row is A plurality of linear steel pipe sheet pile walls 15A made of steel pipe sheet pile 14B
Is reinforced by connecting to the pile 11 via a joint, is reinforced by connecting between the pile rows 12 with a linking member 16, the linking member 16 is a manufacturing surface,
The three points are that the unit is constructed so that it is advantageous in terms of construction. Details of this will be described first with reference to FIGS. 2 to 6 for the first embodiment.
【0045】図2は、要部の全体図で、海岸には所定の
範囲にわたって地盤改良(図7、図8に示す符号37の
部分)がなされ、そこに盛土24がなされる。盛土24
と海底地盤10を貫通して基礎地盤23に届く深さに、
所定の杭11間隔で、かつ所定の杭列間隔で、2列の杭
列12が打設されている(図には鋼管杭の例を示す)。
図2では、図示左側の杭11の左側前方が海側(イ)、
右側の杭11の右方が陸側(ロ)で、盛土24を介して
背面土25が盛られている。22は海面である。FIG. 2 is an overall view of the main part. The ground is improved (a portion 37 shown in FIGS. 7 and 8) on the coast over a predetermined range, and the embankment 24 is formed there. Embankment 24
And the depth that penetrates the seabed 10 and reaches the foundation 23,
Two pile rows 12 are driven at a predetermined pile 11 interval and a predetermined pile row interval (an example of a steel pipe pile is shown in the drawing).
In FIG. 2, the front left side of the pile 11 on the left side in the drawing is the sea side (a),
The right side of the pile 11 on the right side is the land side (b), and the back soil 25 is overlaid via the embankment 24. 22 is the sea level.
【0046】2列の各杭列12間の杭11(図2の右左
の各杭)を繋ぐ連係部材16は、ジャケットタイプの鋼
製梁部材ユニット27で構成されている。鋼製梁部材ユ
ニット27は、図3、図4に示すように、杭11より大
径の2本の主鋼管18と、この両主鋼管18の間に両端
が溶接で一体化される、上部水平材28と、下部水平材
30と、2本の斜材31とから構成されている。ここ
で、鋼製梁部材ユニット27が、同ユニットを形成する
上部水平材28、下部水平材30、2本の斜材31から
なる構造をジャケットとし、ジャケットを用いる構造を
ジャケットタイプと呼ぶ。図3、図4に示すように、2
つの主鋼管18は、杭列12と同じ間隔で設けられてい
る。The linking member 16 for connecting the piles 11 (the right and left piles in FIG. 2) between the two pile rows 12 is composed of a jacket type steel beam member unit 27. As shown in FIGS. 3 and 4, the steel beam member unit 27 has two main steel pipes 18 having a diameter larger than that of the pile 11 and both ends thereof are integrally welded to each other. It is composed of a horizontal member 28, a lower horizontal member 30, and two diagonal members 31. Here, a structure in which the steel beam member unit 27 is composed of an upper horizontal member 28, a lower horizontal member 30, and two diagonal members 31 forming the unit is a jacket, and a structure using the jacket is called a jacket type. As shown in FIGS. 3 and 4, 2
The two main steel pipes 18 are provided at the same intervals as the pile row 12.
【0047】鋼製梁部材ユニット27は、予め工場など
で各部材を溶接一体化して製作されていて、施工現場で
は、図3に示すように吊り降ろし(図7に示す)、ジャ
ケットの主鋼管18の全長を図4に示すように、各列の
杭11に嵌合し、所定の高さを保持し、その後、主鋼管
をガイドとして後列の杭を打設し、両管の間隙33にモ
ルタル等のグラウト材34を充填し、グラウト材34が
硬化することで両管を一体化する(図5および図6参
照)。図6には、斜材31の端部が溶接32で主鋼管1
8に接合された詳細が示されている。The steel beam member unit 27 is manufactured by welding and integrating each member in advance in a factory or the like. At the construction site, the steel beam member unit 27 is hung as shown in FIG. 3 (shown in FIG. 7) and the main steel pipe of the jacket. As shown in FIG. 4, the entire length of 18 is fitted to the piles 11 in each row and maintained at a predetermined height, and then the piles in the rear row are driven by using the main steel pipe as a guide, and in the gap 33 between both pipes. The grouting material 34 such as mortar is filled, and the grouting material 34 is cured to integrate the two tubes (see FIGS. 5 and 6). In FIG. 6, the end of the diagonal member 31 is welded 32 to the main steel pipe 1.
Details are shown joined to 8.
【0048】なお、ジャケットを据え付け後、グラウト
で完全に固定するまでに、所定の高さにジャケットを保
持するために杭に予め取付けたブラケットにジャケット
を仮固定するか、地盤に打設した仮受杭でジャケットを
仮固定する必要があるが、図面からは省略する。It should be noted that, after the jacket is installed, it is temporarily fixed to a bracket which is preliminarily attached to the pile in order to hold the jacket at a predetermined height until it is completely fixed by the grout, or it is temporarily placed on the ground. It is necessary to temporarily fix the jacket with the piles, but this is omitted from the drawing.
【0049】図5(A)には、鋼矢板壁15Aを構成す
る直線矢板14Aの嵌合継手13の詳細と、端部継手部
材35がジャケットの主鋼管18に溶接され、この端部
継手部材35と直線矢板14Aの嵌合継手13の係合を
介して、壁体端部の直線矢板14Aが主鋼管18に接合
されている詳細が示されている。また、図5(B)に
は、鋼管矢板壁15Bを構成する鋼管矢板14Bの嵌合
継手13の詳細と、端部継手部材35がジャケットの主
鋼管18に溶接され、この端部継手部材35と鋼管矢板
14Bの嵌合継手13の係合を介して、壁体端部の鋼管
矢板14Bが主鋼管18に接合されている詳細が示され
ている。FIG. 5A shows details of the fitting joint 13 of the straight sheet pile 14A constituting the steel sheet pile wall 15A and the end joint member 35 welded to the main steel pipe 18 of the jacket. The details in which the straight sheet pile 14A at the end of the wall body is joined to the main steel pipe 18 through the engagement of the fitting joint 13 between the straight sheet piles 35 and the straight sheet pile 14A are shown. Further, in FIG. 5B, details of the fitting joint 13 of the steel pipe sheet pile 14B constituting the steel pipe sheet pile wall 15B and the end joint member 35 are welded to the main steel pipe 18 of the jacket. And the steel pipe sheet pile 14B at the end of the wall body is joined to the main steel pipe 18 through the engagement of the fitting joint 13 of the steel pipe sheet pile 14B.
【0050】図5(A)に示すように、一方の壁体にお
ける直線矢板14Aとジャケットの主鋼管18の端部継
手部材35の嵌合部には、アスファルト等の滑り材13
aが介在している。また、直線矢板間14Aの嵌合継手
13には、止水材13bが塗布されている。さらに、図
5(B)に示すように、他方の壁体における鋼管矢板1
4Bの嵌合継手13相互の嵌合部または嵌合継ぎ手13
とジャケットの主鋼管18の端部継手部材35の嵌合部
には、袋詰めセメントモルタル等の止水材13bが充填
されている。また、鋼管矢板間14Bの嵌合継手13に
は、継手形式にもよるが、袋詰めセメントモルタル(図
示の実施形態の場合)または袋詰めセメントモルタルと
ベントナイトモルタルの組み合わせ等の止水材13bが
充填されている。As shown in FIG. 5 (A), a sliding member 13 such as asphalt is attached to the fitting portion between the straight sheet pile 14A on one wall and the end joint member 35 of the main steel pipe 18 of the jacket.
a is present. A water blocking material 13b is applied to the fitting joint 13 between the straight sheet piles 14A. Furthermore, as shown in FIG. 5B, the steel pipe sheet pile 1 on the other wall body
4B fitting joint 13 Mutual fitting portion or fitting joint 13
The fitting portion of the end joint member 35 of the main steel pipe 18 of the jacket is filled with a waterproof material 13b such as bag-filled cement mortar. In addition, the fitting joint 13 between the steel pipe sheet piles 14B has a waterproof material 13b such as bag-filled cement mortar (in the illustrated embodiment) or a combination of bag-filled cement mortar and bentonite mortar, depending on the joint type. It is filled.
【0051】図7、図8には、本発明の実施形態1が実
施される[1]〜[9]の施工ステップのうち、主要な
5ステップを斜視図で示している。[1]〜[12]の
施工ステップを簡単に説明すると、[1]地盤改良、
[2]前列鋼管杭打設、[3]ジャケット据付け、
[4]後列鋼管杭打設、[5]グラウト打設、[6]盛
土、[7]間仕切り仮設矢板打設、[8]鋼矢板壁およ
び鋼管矢板壁据付け、[9]中詰め土施工、[10]間
仕切り仮設矢板徹去、[11]上部工施工、[12]護
岸背面土施工、の順で施工される。FIG. 7 and FIG. 8 are perspective views showing five main steps among the construction steps [1] to [9] in which the first embodiment of the present invention is carried out. Briefly explaining the construction steps of [1] to [12], [1] ground improvement,
[2] Front row steel pipe pile driving, [3] Jacket installation,
[4] Rear row steel pipe pile driving, [5] grout driving, [6] embankment, [7] temporary partition sheet pile driving, [8] steel sheet pile wall and steel pipe sheet pile wall installation, [9] filling soil construction, [10] Temporary partition sheet pile removal, [11] superstructure construction, [12] revetment backside soil construction will be performed in this order.
【0052】図7(A)は、前記[3]のジャケット据
付けステップを示し、地盤改良範囲37において、クレ
ーン船38で吊下げた鋼製梁部材ユニット27の主鋼管
18を、海底地盤10に打設された杭11に嵌合してい
る状況を示している。FIG. 7A shows the jacket installation step of the above [3], in which the main steel pipe 18 of the steel beam member unit 27 suspended by the crane ship 38 in the ground improvement area 37 is attached to the seabed ground 10. It shows a situation in which the pile 11 has been fitted.
【0053】図7(B)は、前記[7]の間仕切り用架
設矢板の打設ステップを示し、前ステップで鋼製梁部材
ユニット27の主鋼管18の打設が終わった後、各杭列
12間にクレーン船38で吊下げた間仕切り用架設矢板
42を建て込む状況を示している。FIG. 7 (B) shows the step [7] of placing the partitioning sheet piles for partitioning. After the main steel pipe 18 of the steel beam member unit 27 has been placed in the previous step, each pile row The situation is shown in which the erection sheet pile 42 for partitioning, which is hung by the crane ship 38, is built between 12th.
【0054】図7(C)は、前記[8]の鋼矢板壁およ
び鋼管矢板壁据付けステップを示し、前ステップで間仕
切り用架設矢板42を建て込みが終わった後、一方の杭
列における各杭12間にクレーン船38で吊下げた直線
矢板14Aからなる鋼矢板壁15Aを建て込む状況を示
している。また、他方の杭列における各杭12間にクレ
ーン船38で吊下げた鋼管矢板14Bを順次を建て込ん
だ状況、またはクレーン船38で吊下げた鋼管矢板14
Bからなる鋼矢板壁15Bを建て込んだ状況を示してい
る。FIG. 7C shows the step of installing the steel sheet pile wall and the steel pipe sheet pile wall in the above [8], and after the installation of the partitioning sheet pile 42 in the previous step is completed, each pile in one pile row is It shows a situation in which a steel sheet pile wall 15A composed of a straight sheet pile 14A hung by a crane ship 38 is built between 12 sheets. In addition, a situation in which steel pipe sheet piles 14B hung by a crane ship 38 are sequentially built between the piles 12 in the other pile row, or a steel pipe sheet pile 14 hung by the crane ship 38.
The situation where the steel sheet pile wall 15B made of B is built in is shown.
【0055】図8(A)は、前記[11]の上部工施工
ステップを示し、相対する鋼矢板壁15Aおよび鋼管矢
板壁15B間のセルに中詰め土17が投入され、また、
護岸壁9の上端に上部工39を設置する状況を示してい
る。FIG. 8 (A) shows the superstructure construction step of the above [11], in which the filling soil 17 is put into the cell between the opposing steel sheet pile wall 15A and the steel pipe sheet pile wall 15B, and
A situation in which a superstructure 39 is installed on the upper end of the seawall 9 is shown.
【0056】図8(B)は、最終ステップとして、前記
[12]の護岸背面土施工を示し、上部工39を設置の
後、背面に背面土25を施工した状況を示している。FIG. 8B shows, as the final step, the construction of the revetment backside soil of [12] above, and shows a situation in which the backside soil 25 is constructed on the back surface after the superstructure 39 is installed.
【0057】実施形態1の主要な作用として、一方の杭
列側においては、外側に凸の円弧状に建て込まれる鋼矢
板壁15Aの端部は、所定間隔に配置の杭11で支持さ
れて、当該鋼矢板壁15Aが建込み補強されること、ま
た、他方の杭列側においては、直線状に建て込まれる剛
性および遮水性能の高い鋼管矢板壁15Bの端部は主鋼
管18を介して杭11に連結される。また、杭列12間
は、鋼製梁部材ユニット27で連結されて、一方の鋼矢
板壁15Aおよび他方の鋼管矢板壁15Bを支える杭列
12間が補強されることである。さらに、鋼製梁部材ユ
ニット27は、ユニット化されていることで、製作面お
よび、現場施工の面で著しく有利となる。As a main function of the first embodiment, on one pile row side, the ends of the steel sheet pile wall 15A built in an outwardly convex arc shape are supported by the piles 11 arranged at predetermined intervals. , The steel sheet pile wall 15A is built and reinforced, and on the other pile row side, the end of the steel pipe sheet pile wall 15B having a high rigidity and a high water impermeability that is built in a straight line is provided via the main steel pipe 18. Connected to the pile 11. The pile rows 12 are connected by the steel beam member unit 27 to reinforce the pile rows 12 that support one steel sheet pile wall 15A and the other steel pipe sheet pile wall 15B. Further, the steel beam member unit 27 is unitized, which is extremely advantageous in terms of production and on-site construction.
【0058】実施形態2を図9〜図15によって説明す
る。The second embodiment will be described with reference to FIGS.
【0059】実施形態2は、連係部材16を、内壁タイ
プの鋼製梁部材ユニット27aとした例を示す。この梁
部材ユニット27aは、その両端部の構造及び、これと
杭11との接合構造が実施形態1と相異している。他の
構造は実施形態1と同じであるので、実施形態1と同一
要素には、同一符号を付して、説明を省略し、以下では
主に相異する構造について説明する。The second embodiment shows an example in which the link member 16 is an inner wall type steel beam member unit 27a. The beam member unit 27a is different from that of the first embodiment in the structure of both end portions and the joint structure between the beam member unit 27a and the pile 11. Since the other structures are the same as those of the first embodiment, the same elements as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. Below, mainly different structures will be described.
【0060】図9は要部の全体説明図で、実施形態1の
図2に対応する。図10は、内壁タイプの鋼製梁部材ユ
ニット27aの杭11への係合時の説明図で、図3に対
応する。図11(A)は図10の鋼製梁部材ユニット2
7aの杭11との係合後の説明図で、図4(A)に対応
し、図11(B)は、同(A)の杭と鋼製梁部材ユニッ
トの係合状態を示す平面図で、図4(B)に対応する。
図11(C)は、一方の杭列における各杭間に構築され
る複数の直線矢板からなる壁体と、他方の杭列における
各杭間に構築される複数の鋼管矢板からなる壁体とを示
す同図(B)の平面図で、図4(C)に対応する。FIG. 9 is an overall explanatory view of the main part and corresponds to FIG. 2 of the first embodiment. FIG. 10 is an explanatory view when the inner wall type steel beam member unit 27a is engaged with the pile 11, and corresponds to FIG. FIG. 11A shows the steel beam member unit 2 of FIG.
7A is an explanatory view after engagement with the pile 11 of 7a, corresponding to FIG. 4A, and FIG. 11B is a plan view showing an engaged state of the pile of FIG. 7A and the steel beam member unit. Corresponds to FIG. 4 (B).
FIG. 11C shows a wall body composed of a plurality of straight sheet piles constructed between the piles in one pile row and a wall body constructed of a plurality of steel pipe sheet piles constructed between the piles in the other pile row. 4B is a plan view of FIG. 4B and corresponds to FIG. 4C.
【0061】図12(A)は、杭と直線矢板との接合構
造を示す拡大断面図で、図12(B)は、杭と鋼管矢板
との接合構造を示す拡大断面図で、それぞれ図5(A)
(B)に対応する。図13は、杭と鋼製梁部材ユニット
との接合構造を示す拡大断面図で、図6に対応する。図
14(A)、(B)、(C)、図15(A)、(B)
は、[1]〜[12]の護岸施工ステップを5段階で示
す斜視図で、図7(A)、(B)、(C)、図8
(A)、(B)に対応する。FIG. 12 (A) is an enlarged sectional view showing the joint structure between the pile and the straight sheet pile, and FIG. 12 (B) is an enlarged sectional view showing the joint structure between the pile and the steel pipe sheet pile. (A)
Corresponds to (B). FIG. 13 is an enlarged cross-sectional view showing a joint structure between a pile and a steel beam member unit, and corresponds to FIG. 6. 14 (A), (B), (C), FIG. 15 (A), (B)
8 is a perspective view showing the revetment construction steps of [1] to [12] in five stages, and FIG. 7 (A), (B), (C), and FIG.
It corresponds to (A) and (B).
【0062】次に、鋼製梁部材ユニット27aを図9〜
図13によって説明する。鋼製梁部材ユニット27aの
両端には、実施形態1の主鋼管18に代わって、嵌合継
手13を先端に有する2対の矢板継手部材41が、上下
方向に伸長して、平行に設けられていている。この矢板
継手部材41の基端は、連結部材40を介して上部水平
材28と、下部水平材30と、2本の斜材31のそれぞ
れの両端部に溶接で接合されている。Next, the steel beam member unit 27a is shown in FIG.
This will be described with reference to FIG. In place of the main steel pipe 18 of the first embodiment, two pairs of sheet pile joint members 41 having fitting joints 13 at their tips are provided in parallel with each other at both ends of the steel beam member unit 27a, extending vertically. It is The base end of the sheet pile joint member 41 is welded to both ends of the upper horizontal member 28, the lower horizontal member 30, and the two diagonal members 31 via the connecting member 40.
【0063】図13には、鋼製梁部材ユニット27aと
杭11の接合構造が示されている。つまり、杭11の外
面に間隔をおいて平行な一対の端部継手部材35が溶接
され、この端部継手部材35と矢板継手部材41のそれ
ぞれの嵌合継手13を係合して、鋼製梁部材ユニット2
7aが杭11に接合されている。FIG. 13 shows a joint structure of the steel beam member unit 27a and the pile 11. That is, a pair of end joint members 35, which are parallel to each other at intervals, are welded to the outer surface of the pile 11, and the end joint members 35 and the fitting joints 13 of the sheet pile joint members 41 are engaged with each other to form a steel product. Beam member unit 2
7 a is joined to the pile 11.
【0064】また、端部継手部材35と矢板継手部材4
1等で囲まれる内部空間にコンクリートやモルタル等の
グラウト材34が充填される。さらに、杭11の外面で
端部継手部材35の間隙の鋼製梁部材ユニット27aが
取付けられる部分および鋼製梁部材の矢板継手部材41
の間で、グラウト材34が充填される部分には、丸鋼や
平鋼等のシアキー(鋼製ずれ止め部材)43が取付けら
れている。Further, the end joint member 35 and the sheet pile joint member 4
An inner space surrounded by 1 etc. is filled with grout material 34 such as concrete or mortar. Further, the portion of the outer surface of the pile 11 where the steel beam member unit 27a is attached in the gap of the end joint member 35 and the sheet pile joint member 41 of the steel beam member.
Between them, a shear key (steel slip prevention member) 43 such as round steel or flat steel is attached to a portion filled with the grout material 34.
【0065】図11には、直線矢板14Aまたは鋼管矢
板14Bと杭11の接合例として、杭11の外面に溶接
された端部継手部材35と、鋼矢板壁15Aの端部に位
置する直線矢板14Aにおける嵌合継手13および鋼管
矢板15Bの端部に位置する鋼管矢板15Bにおける嵌
合継手13が係合した例の詳細が示されている。In FIG. 11, as an example of joining the straight sheet pile 14A or the steel pipe sheet pile 14B to the pile 11, the end joint member 35 welded to the outer surface of the pile 11 and the straight sheet pile located at the end of the steel sheet pile wall 15A. Details of an example in which the fitting joint 13 in 14A and the fitting joint 13 in the steel pipe sheet pile 15B located at the end of the steel pipe sheet pile 15B are engaged are shown.
【0066】鋼製梁部材ユニット27aは、実施形態1
と同様、予め工場などで各部材を溶接一体化して製作さ
れ、施工現場では、図9に示すように吊り降ろし(図1
3に示す)、このとき、端部継手部材35と矢板継手部
材41のそれぞれの嵌合継手13を係合させる。その
後、端部継手部材35と矢板継手部材41で囲まれる空
隙にグラウト34を充填し、グラウト材34が硬化する
ことで鋼製梁部材ユニット27aと杭11とが一体化さ
れる。The steel beam member unit 27a is used in the first embodiment.
Similar to the above, it is manufactured by welding and integrating each member in advance in a factory or the like, and at the construction site, it is hung down as shown in FIG.
3), at this time, the fitting joints 13 of the end joint member 35 and the sheet pile joint member 41 are engaged. After that, the grout 34 is filled in the space surrounded by the end joint member 35 and the sheet pile joint member 41, and the grout material 34 is hardened, whereby the steel beam member unit 27a and the pile 11 are integrated.
【0067】図14(A)、(B)、(C)、図15
(A)、(B)には、実施形態2が実施される[1]〜
[12]の護岸施工ステップのうち、主要な5ステップ
を斜視図で示している。[1]〜[12]の施工ステッ
プは、実施形態1と若干相異しているので、簡単に説明
すると、[1]地盤改良、[2]盛土、[3]前列鋼管
杭打設、[4]鋼製梁部材ユニット27a据付け、
[5]後列鋼管杭打設、[6]グラウト打設、[7]間
仕切り仮設矢板42打設、[8]鋼矢板壁および鋼管矢
板壁据付け、[9]中詰め土施工、[10]間仕切り仮
設矢板徹去、[11]上部工施工、[12]護岸背面土
施工、の順で施工される。14 (A), (B), (C) and FIG.
Embodiment 2 is implemented in (A) and (B) [1]-
Of the revetment construction steps in [12], the main five steps are shown in perspective view. The construction steps of [1] to [12] are slightly different from those of the first embodiment. Therefore, in brief, [1] ground improvement, [2] embankment, [3] front row steel pipe pile driving, [3] 4] Installation of steel beam member unit 27a,
[5] Rear row steel pipe pile driving, [6] Grout driving, [7] Partition temporary sheet pile 42 driving, [8] Steel sheet pile wall and steel pipe sheet pile wall installation, [9] Filling soil construction, [10] Partition Temporary sheet piles are removed, [11] superstructure construction, [12] revetment backside soil construction.
【0068】図14(A)は、前記[3]のジャケット
据付けステップを示し、地盤改良範囲37において、ク
レーン船38で吊下げた鋼製梁部材ユニット27aの矢
板継手部材41を、海底地盤10に打設された杭11に
嵌合している状況を示している。FIG. 14 (A) shows the jacket installation step of the above [3]. In the ground improvement area 37, the sheet pile joint member 41 of the steel beam member unit 27a hung by the crane ship 38 is replaced with the seabed ground 10. It shows a situation in which it is fitted to the pile 11 that has been placed.
【0069】図14(B)は、前記[7]の間仕切り用
架設矢板の打設ステップを示し、前ステップで鋼製梁部
材ユニット27aの矢板継手部材41の打設が終わった
後、各杭列12間にクレーン船38で吊下げた間仕切り
用架設矢板42を建て込む状況を示している。FIG. 14 (B) shows the step [7] of driving the partitioning sheet piles for partitioning. After the driving of the sheet pile joint members 41 of the steel beam member unit 27a is completed in the previous step, each pile is piled up. The situation is shown in which the erection sheet piles 42 for partitions are hung between the rows 12 by the crane ship 38.
【0070】図14(C)は、前記[8]の鋼矢板壁お
よび鋼管矢板壁据付けステップを示し、前ステップで間
仕切り用架設矢板42を建て込みが終わった後、一方の
杭列における各杭12間にクレーン船38で吊下げた直
線矢板14Aからなる鋼矢板壁15Aを建て込む状況を
示している。また、他方の杭列における各杭12間にク
レーン船38で吊下げた鋼管矢板14Bを順次を建て込
んだ状況、またはクレーン船38で吊下げた複数の鋼管
矢板14Bからなる鋼矢板壁15Bを建て込んだ状況を
示している。FIG. 14C shows the step of installing the steel sheet pile wall and the steel pipe sheet pile wall in the above [8]. After the erection sheet pile 42 for partitioning is built in the previous step, each pile in one pile row is It shows a situation in which a steel sheet pile wall 15A composed of a straight sheet pile 14A hung by a crane ship 38 is built between 12 sheets. In addition, a situation in which steel pipe sheet piles 14B suspended by a crane ship 38 are sequentially built between the piles 12 in the other pile row, or a steel sheet pile wall 15B composed of a plurality of steel pipe sheet piles 14B suspended by the crane ship 38 is installed. It shows the built-in situation.
【0071】図15(A)は、前記[11]の上部工施
工ステップを示し、相対する鋼矢板壁15Aおよび鋼管
矢板壁間のセルに中詰め土17が投入され、また、護岸
壁9の上端に上部工39を設置する状況を示している。FIG. 15 (A) shows the superstructure construction step of the above [11], in which the filling soil 17 is put into the cells between the steel sheet pile wall 15A and the steel pipe sheet pile wall which are opposed to each other, and the sea wall 9 The situation shows that the superstructure 39 is installed at the upper end.
【0072】図15(B)は、最終ステップとして、前
記[12]の護岸背面土施工を示し、上部工39を設置
の後、背面に背面土25を施工した状況を示している。FIG. 15 (B) shows, as the final step, the construction of the revetment backside soil of [12] above, and shows a situation in which the backside soil 25 is constructed on the back surface after the superstructure 39 is installed.
【0073】実施形態2の主要な作用は、実施形態1と
同様で、一方の杭列側においては、外側に凸の円弧状に
建て込まれる鋼矢板壁15Aの端部は、所定間隔に配置
の杭11で支持され、また、当該鋼矢板壁15Aの建込
み状況が補強されること、また、他方の杭列側において
は、直線状に建て込まれる剛性および遮水性能の高い鋼
管矢板壁15Bの端部は杭11に直接連結されて直線状
の鋼管矢板壁となる。さらに、杭列12間は、鋼製梁部
材ユニット27で連結され、一方の鋼矢板壁15Aおよ
び他方の鋼管矢板壁15Bを支える杭11間が補強され
ることである。しかも、鋼製梁部材ユニット27aは、
ユニット化されていることで、製作面および、現場施工
の面で著しく有利である。The main operation of the second embodiment is the same as that of the first embodiment, and on one pile row side, the ends of the steel sheet pile wall 15A built in an arc shape protruding outward are arranged at predetermined intervals. Steel pile sheet wall 15A that is supported by the piles 11 and is reinforced with respect to the installation condition of the steel sheet pile wall 15A, and that the other side of the pile row is a steel pipe sheet pile wall that is linearly built and has high rigidity and water impermeability. The end of 15B is directly connected to the pile 11 to form a straight steel pipe sheet pile wall. Further, the pile rows 12 are connected by a steel beam member unit 27, and the piles 11 that support one steel sheet pile wall 15A and the other steel pipe sheet pile wall 15B are reinforced. Moreover, the steel beam member unit 27a is
Being unitized is extremely advantageous in terms of production and on-site construction.
【0074】次に、実施形態3を、図16〜図21によ
って説明する。Next, the third embodiment will be described with reference to FIGS.
【0075】実施形態3では、杭列12間を補強する連
係部材16が、PC(プレストレスコンクリート)パネ
ルユニット27bで構成され、このPCパネルユニット
27bの構造及び、これと杭11との接合構造が実施形
態1、2と相異している。他の構造は実施形態1、2と
同じであるので、実施形態1、2と同一要素には、同一
符号を付して、説明を省略し、以下では相異する構造に
ついて説明する。In the third embodiment, the linking member 16 for reinforcing the space between the pile rows 12 is composed of the PC (prestressed concrete) panel unit 27b, and the structure of the PC panel unit 27b and the joint structure between this and the pile 11 are provided. Is different from the first and second embodiments. Since the other structures are the same as those of the first and second embodiments, the same elements as those of the first and second embodiments are designated by the same reference numerals, and the description thereof will be omitted. Below, different structures will be described.
【0076】図16は要部の全体説明図で、実施形態
1、2の図2、図9に対応する。図17は、PCパネル
ユニット27bの杭11への係合時の説明図で、図3、
図10に対応する。図18(A)は、図17のPCパネ
ルユニット27bが杭11と係合した後の説明図で、図
4(A)、図11(A)に対応し、図18(B)は、同
(A)の杭11とPCパネルユニット27bの係合状態
を示す平面図で、図4(B)、図11(B)に対応す
る。図18(C)は、一方の杭列における各杭11間に
構築される複数の直線矢板14Aからなる壁体および他
方の杭列における各杭11間に構築される複数の鋼管矢
板14Bからなる壁体を示す同(A)の平面図で、図4
(C)、図11(C)に対応する。FIG. 16 is an overall explanatory view of the main part and corresponds to FIGS. 2 and 9 of the first and second embodiments. FIG. 17 is an explanatory diagram when the PC panel unit 27b is engaged with the pile 11, and FIG.
It corresponds to FIG. FIG. 18 (A) is an explanatory view after the PC panel unit 27b of FIG. 17 is engaged with the pile 11, and corresponds to FIGS. 4 (A) and 11 (A), and FIG. 18 (B) is the same. It is a top view which shows the engagement state of the pile 11 and PC panel unit 27b of (A), and corresponds to FIG. 4 (B) and FIG. 11 (B). FIG. 18C is composed of a wall body composed of a plurality of straight sheet piles 14A constructed between the piles 11 in one pile row and a plurality of steel pipe sheet piles 14B constructed between the piles 11 in the other pile row. FIG. 4 is a plan view of the same (A) showing the wall body.
11C corresponds to FIG. 11C.
【0077】図19(A)は、杭11と直線矢板14A
との接合構造を示す拡大断面図、図19(B)は、杭1
1と鋼管矢板14Bとの接合構造を示す拡大断面図で、
図5、図12に対応する。図20は、杭11とPCパネ
ルユニット27bとの接合構造を示す拡大断面図で、図
6、図13に対応する。図21(A)、(B)、(C)
は、護岸施工ステップを3段階で示す斜視図で、図7
(A)、(B)と図8(A)、および図14(A)、
(B)と図15(A)に対応する。FIG. 19A shows a pile 11 and a straight sheet pile 14A.
19B is an enlarged cross-sectional view showing the joint structure with the pile 1
1 is an enlarged sectional view showing a joint structure between 1 and a steel pipe sheet pile 14B,
It corresponds to FIG. 5 and FIG. FIG. 20 is an enlarged cross-sectional view showing the joint structure between the pile 11 and the PC panel unit 27b and corresponds to FIGS. 6 and 13. 21 (A), (B), (C)
Is a perspective view showing the steps of the seawall construction in three stages.
(A), (B) and FIG. 8 (A), and FIG. 14 (A),
It corresponds to (B) and FIG. 15 (A).
【0078】次に、PCパネルユニット27bを図16
〜図20によって説明する。PCパネルユニット27b
の両端には、実施形態2と同じ嵌合継手13を先端に有
する2対の矢板継手部材41が、上下方向に伸長して、
平行に設けられていている。つまり、この矢板継手部材
41の基端は、PCパネル本体の両端部に接合されてい
る。Next, the PC panel unit 27b is shown in FIG.
~ It demonstrates by FIG. PC panel unit 27b
Two pairs of sheet pile joint members 41 having the same fitting joint 13 as that of the second embodiment at the tip end extend vertically,
It is installed in parallel. That is, the base end of the sheet pile joint member 41 is joined to both ends of the PC panel body.
【0079】図19には、PCパネルユニット27bと
杭11の接合構造が示されている(実施形態2と略同じ
である)。つまり、杭11の外面に端部継手部材35が
溶接され、この端部継手部材35と矢板継手部材41の
それぞれの嵌合継手13を係合して、PCパネルユニッ
ト27bが杭11に接合されている。また、端部継手部
材35と矢板継手部材41等で囲まれる内部空間にグラ
ウト34が充填される。FIG. 19 shows a joint structure of the PC panel unit 27b and the pile 11 (substantially the same as the second embodiment). That is, the end joint member 35 is welded to the outer surface of the pile 11 and the fitting joints 13 of the end joint member 35 and the sheet pile joint member 41 are engaged to join the PC panel unit 27b to the pile 11. ing. Further, the grout 34 is filled in the inner space surrounded by the end joint member 35, the sheet pile joint member 41, and the like.
【0080】図18には、直線矢板14Aまたは鋼管矢
板14Bと杭11の接合例として、杭11の外面に溶接
された端部継手部材35と、矢板壁の端部に位置する直
線矢板14Aの矢板継手部材41のそれぞれの嵌合継手
13および鋼管矢板14Bにおける嵌合継手13が係合
した例の詳細が示されている(実施形態2と同じであ
る)。FIG. 18 shows an example of joining the straight sheet pile 14A or the steel pipe sheet pile 14B and the pile 11 to the end joint member 35 welded to the outer surface of the pile 11 and the straight sheet pile 14A located at the end of the sheet pile wall. Details of an example in which the respective fitting joints 13 of the sheet pile joint member 41 and the fitting joints 13 of the steel pipe sheet pile 14B are engaged (the same as the second embodiment) are shown.
【0081】PCパネルユニット27bは、予めコンク
リート工場や、現場近くの成形場所で製作され、施工現
場では、図17に示すように吊り降ろし(図21に示
す)、このとき、杭11と矢板継手部材41のそれぞれ
の嵌合継手13を係合させる。その後、端部継手部材3
5と矢板継手部材41で囲まれる空隙にコンクリートや
モルタル等のグラウト材34を充填し、グラウト材34
が硬化することで鋼製梁部材ユニット27aと杭11と
を一体化する。The PC panel unit 27b is manufactured in advance in a concrete factory or a molding place near the site. At the construction site, it is hung as shown in FIG. 17 (shown in FIG. 21). The respective fitting joints 13 of the members 41 are engaged. After that, the end joint member 3
5 is filled with a grout material 34 such as concrete or mortar in a space surrounded by the sheet pile joint member 41.
The steel beam member unit 27a and the pile 11 are integrated by hardening.
【0082】PCパネルの矢板継手部材41間および端
部継手部材35間のグラウト材(コンクリート)34の
充填部には、コンクリート目荒らし又はコンクリート面
を凹凸形状とした、シアキー(ずれ止め部材)43が取
付けられている。なお、PCパネルを仮固定する、仮受
け杭やブラケットの図示を省略する。In the filling portion of the grout material (concrete) 34 between the sheet pile joint members 41 and between the end joint members 35 of the PC panel, a shear key (shift prevention member) 43 having a roughened concrete surface or an uneven concrete surface is formed. Is installed. The temporary support piles and brackets for temporarily fixing the PC panel are not shown.
【0083】図21(A)、(B)、(C)には、本発
明の実施形態3の方法が実施される〜の施工ステッ
プのうち、主要な3ステップを斜視図で図示している。
〜の施工ステップは、実施形態1、2と若干相異し
ているので、簡単に説明すると、地盤改良、盛土、
鋼管杭打設、PCパネルユニット27b据付け、
グラウト材打設、鋼矢板壁および鋼管矢板壁据付け、
中詰め土施工、上部工施工、護岸背面土施工、の
順で施工される。21 (A), (B), and (C) show perspective views of the three main steps among the construction steps of the method of Embodiment 3 of the present invention. .
Since the construction steps of to are slightly different from those of the first and second embodiments, a brief description will be given of ground improvement, embankment,
Steel pipe pile driving, PC panel unit 27b installation,
Grout material casting, steel sheet pile wall and steel pipe sheet pile wall installation,
The work will be done in the order of filling soil, superstructure work, and back wall soil work.
【0084】図21(A)は、前記のPCパネルユニ
ット27b据付けステップを示し、地盤改良範囲37に
おいて、海底地盤10に打設された杭11の端部継手部
材35に、クレーン船38で吊下げたPCパネルユニッ
ト27bの矢板継手部材41を嵌合している状況を示し
ている。FIG. 21 (A) shows the steps for installing the PC panel unit 27b described above. In the ground improvement area 37, the crane joint 38 suspends the end joint member 35 of the pile 11 cast on the seabed ground 10 by the crane ship 38. The state where the sheet pile joint member 41 of the lowered PC panel unit 27b is fitted is shown.
【0085】図21(B)は、前記の鋼矢板壁および
鋼管矢板壁据付けステップを示し、一方の杭列12間に
クレーン船38で吊下げた直線矢板14Aからなる鋼矢
板壁15Aを建て込む状況を示している。また、他方の
杭列における各杭12間にクレーン船38で吊下げた鋼
管矢板14Bを順次を建て込んだ状況、またはクレーン
船38で吊下げた鋼管矢板14Bからなる鋼矢板壁15
Bを建て込んだ状況を示している。FIG. 21B shows the steps for installing the steel sheet pile wall and the steel pipe sheet pile wall, in which the steel sheet pile wall 15A consisting of the straight sheet pile 14A suspended by the crane ship 38 is built between the one pile row 12. It shows the situation. In addition, a situation in which steel pipe sheet piles 14B suspended by a crane ship 38 are sequentially built between the piles 12 in the other pile row, or a steel sheet pile wall 15 made of steel pipe sheet piles 14B suspended by the crane ship 38.
It shows the situation where B is built.
【0086】図21(C)は、最終ステップとして、
護岸背面土施工を示し、相対する鋼矢板壁15Aおよび
鋼管矢板壁15B間のセルに中詰め土17が投入され、
また、護岸壁9の上端に上部工39を設置の後、背面に
背面土25を施工した状況を示している。FIG. 21C shows the final step,
Shows the revetment backside soil construction, the filling soil 17 is put into the cell between the steel sheet pile wall 15A and the steel pipe sheet pile wall 15B which face each other,
In addition, after the superstructure 39 is installed on the upper end of the seawall 9, the back soil 25 is applied to the back surface.
【0087】実施形態3の主要な作用は、実施形態1、
2と同様で、一方の杭列側においては、外側に凸の円弧
状に建て込まれる鋼矢板壁15Aの端部は、所定間隔に
配置の杭11で支持され、当該鋼矢板壁15Aの建込み
状況が補強されることであり、また、他方の杭列側にお
いては、直線状に建て込まれる剛性および遮水性能の高
い鋼管矢板壁15Bの端部は杭11に直接連結されて直
線状の鋼管矢板壁となる。さらに、杭列12間は、PC
パネルユニット27bで連結され、一方の鋼矢板壁15
Aおよび他方の鋼管矢板壁15Bを支える杭11間が補
強されることである。しかも、PCパネルユニット27
bは、ユニット化されていることで、製作面および、現
場施工の面で著しく有利である。The main operation of the third embodiment is the first embodiment,
Similar to 2, on one pile row side, the ends of the steel sheet pile wall 15A built in an outwardly convex arc shape are supported by the piles 11 arranged at predetermined intervals, and the steel sheet pile wall 15A is built. In the other pile row side, the end of the steel pipe sheet pile wall 15B having a high rigidity and a high water impermeability that is built in a straight line is directly connected to the pile 11 to form a straight line. It becomes the steel pipe sheet pile wall. Furthermore, between the pile rows 12, PC
One steel sheet pile wall 15 connected by the panel unit 27b
That is, the space between the piles 11 supporting A and the other steel pipe sheet pile wall 15B is reinforced. Moreover, the PC panel unit 27
Since b is unitized, it is extremely advantageous in terms of production and on-site construction.
【0088】また、前記第1〜第3の実施形態を含め
て、本発明を実施する場合、鋼矢板壁15Aまたは鋼管
矢板壁15Bを海底地盤10等の地盤に打ち込んで形成
する場合、いずれか一方の壁体の打ち込み深さを、壁体
の安定性の確保に必要な深さよりも大きくすることによ
り、打ち込み深さの浅い一方の壁体部下側から流入する
地下水があっても、他方の打ち込み深さの深い壁体によ
り、阻止することができるので、壁体部下部の止水性も
高めることができ、産業廃棄物処理場等を囲む壁体とし
て有利となる。例えば、図22に示すように、陸側に、
主鋼管18(または杭11)も含めて鋼管矢板14B等
からなる壁体15Bを(海底)地盤10に深く打ち込む
ようにすると、背面土25等に対する壁体の曲げ抵抗が
大きくなる。また、反対に図23に示すように、沖側
に、主鋼管18(または杭11)も含めて直線鋼矢板1
4A等からなる壁体15Aを(海底)地盤10に深く打
ち込むようにして、壁体下部の遮水性能を向上させるよ
うにしてもよい。In the case of implementing the present invention including the first to third embodiments, when the steel sheet pile wall 15A or the steel pipe sheet pile wall 15B is driven into the ground such as the seabed ground 10 or the like, either By making the driving depth of one wall larger than the depth required to ensure the stability of the wall, even if there is groundwater flowing in from the lower side of one wall with a shallow driving depth, the other Since it can be blocked by the wall body having a large driving depth, it is possible to enhance the water stoppage of the lower part of the wall body portion, which is advantageous as a wall body surrounding an industrial waste treatment plant or the like. For example, as shown in FIG. 22, on the land side,
When the wall body 15B including the steel pipe sheet pile 14B and the like including the main steel pipe 18 (or the pile 11) is driven deep into the (seabed) ground 10, the bending resistance of the wall body against the back soil 25 and the like increases. On the contrary, as shown in FIG. 23, the straight steel sheet pile 1 including the main steel pipe 18 (or the pile 11) is provided on the offshore side.
The wall body 15A made of 4A or the like may be driven deep into the (seabed) ground 10 to improve the water impermeability of the lower portion of the wall body.
【0089】また、前記実施形態では、鋼管矢板壁15
B側に背面土25を設ける形態を示したが、本発明を実
施する場合、直線矢板壁15Aと鋼管矢板壁15Bの外
側が海等の水域としてもよい。In the above embodiment, the steel pipe sheet pile wall 15 is also used.
Although the back soil 25 is provided on the B side, when the present invention is carried out, the outside of the straight sheet pile wall 15A and the steel pipe sheet pile wall 15B may be a water area such as the sea.
【0090】前記の鋼矢板壁15Aは中詰め土4の土圧
を引張り力で抵抗する部材であるので、沖側に向って凸
になるように、配置すると合理的であるが、岸壁などの
ように直線性を必要とする場合には、沖側に直線状の鋼
管矢板壁を設けるようにすればよい。なお、鋼管矢板壁
体15Bは、その剛性が大きいと共に遮水性能が直線矢
板より高いので、これを海底地盤10に深く打ち込んだ
方が有利である。Since the steel sheet pile wall 15A is a member that resists the earth pressure of the filling soil 4 by a tensile force, it is rational to arrange it so that it is convex toward the offshore side, but When linearity is required as described above, a linear steel pipe sheet pile wall may be provided on the offshore side. Since the steel pipe sheet pile wall body 15B has a high rigidity and a higher water impermeability than the straight sheet pile, it is advantageous to drive the steel sheet pile wall body 15B deep into the seabed ground 10.
【0091】なお、図示を省略するが、鋼管矢板の継手
構造としては、公知のスリット付鋼管継手を両側に備え
た鋼管矢板を使用してもよく、鋼管の一方に雄継手を他
方にスリット付鋼管継手を備えた鋼管矢板等、各種の鋼
管矢板を使用することができ、また、継手構造により、
嵌合継手内に止水性の高い、袋詰めセメントモルタルあ
るいはセメントモルタルを充填する。また、スリット付
鋼管継手相互の継手嵌合構造のように、継手嵌合内が内
外2重構造となる場合には、内側にベントナイトモルタ
ル、外側に前記袋詰めセメントモルタルまたはセメント
モルタルを使用する。Although illustration is omitted, as a joint structure of the steel pipe sheet pile, a steel pipe sheet pile having a known slit steel pipe joint on both sides may be used, and one of the steel pipes has a male joint and the other has a slit. Various steel pipe sheet piles such as a steel pipe sheet pile equipped with a steel pipe joint can be used, and due to the joint structure,
Fill the fitting joint with highly water-proof bagging cement mortar or cement mortar. Further, in the case where the inside of the joint is a double structure such as the joint fitting structure of the steel pipe joints with slits, bentonite mortar is used on the inside and the bag-filled cement mortar or cement mortar is used on the outside.
【0092】前記実施形態では、護岸構造について説明
してが、河川や山岳部等の陸上部における土留め壁や砂
防ダム等の壁体構造物にも適宜適用することができ、こ
れらの場合に、剛性および曲げ抵抗の大きい鋼管矢板壁
側を山側に配置するようにするとよく、盛土24を基礎
地盤(マウンド)として用いるようにしてもよい。壁体
間にモルタルあるいはセメントを充填するようにしても
よい。なお、本発明において、図示例の構成およびステ
ップを、当業者が設計変更の範囲で適宜変更して実施す
ることができる。In the above-mentioned embodiment, the revetment structure is described, but it can also be applied to wall structures such as earth retaining walls and erosion control dams on land such as rivers and mountains. The steel pipe sheet pile wall side having high rigidity and bending resistance may be arranged on the mountain side, and the embankment 24 may be used as a foundation ground (mound). Mortar or cement may be filled between the walls. In addition, in the present invention, those skilled in the art can appropriately change and implement the configuration and steps of the illustrated example within the scope of design change.
【0093】[0093]
【発明の効果】本発明により以下の効果が奏される。The following effects are exhibited by the present invention.
【0094】第1発明によると、次の効果がある。According to the first invention, there are the following effects.
【0095】 一方の壁体を、継ぎ手で相互に連結さ
れ円弧状に配置された直線矢板を壁体として用いること
により、外力に対して鋼材を引張状態で使用することが
できるため、鋼材を有効に使用し、壁体を構成する鋼材
量の低減が図れる。また他方の壁体を、継ぎ手で相互に
連結され直線状に配置された鋼管矢板を壁体として用い
ることにより、直線矢板のみを使用して各壁体を構築す
る場合よりも、壁体間の壁寸法を小さくすることがで
き、また、中詰め土砂を少なくすることができ、護岸構
造などの壁体構造物を小型にすることができる。By using a straight sheet pile, which is connected to each other by a joint and arranged in an arc, as the wall body for one wall, the steel material can be used in a tensile state against an external force, so that the steel material is effective. It is possible to reduce the amount of steel material that constitutes the wall body. Also, by using the steel pipe sheet piles that are connected to each other by a joint and arranged in a straight line as the wall body on the other wall body, as compared with the case where each wall body is constructed using only the straight sheet piles, It is possible to reduce the wall size, reduce the amount of filling sand, and reduce the size of a wall structure such as a revetment structure.
【0096】 各杭列間を鋼管やH型鋼からなる連係
部材で連繋し、前記壁体間に中詰め材を充填することに
より、壁体の強度は中詰め材のせん断強度と連係部材と
杭からなるラーメン構造の強度を合成したものとなるた
め、十分に強固な連係部材を用いることにより、各杭列
間を狭め壁体幅を低減することができる。また、セルの
様に円形に併合する必要がないため、壁体幅を自由に選
択できる。By connecting the pile rows with a connecting member made of a steel pipe or H-shaped steel and filling the filling material between the wall bodies, the strength of the wall body is increased by the shear strength of the filling material and the connecting member and the pile. Since the strength of the rigid frame structure is composed of, it is possible to reduce the width of the wall by narrowing the space between the pile rows by using a sufficiently strong linking member. In addition, since it is not necessary to merge the cells in a circular shape like cells, the wall width can be freely selected.
【0097】 前記した様に、中詰め材と各杭列間の
連係部材からなる剛壁体と杭とを一体化させることによ
り、杭の水平抵抗を期待できるため、土圧等の外力に対
して壁体構造の安定性を高めるとともに壁体の変位の抑
制が可能となる。As described above, by integrating the rigid wall body made of the filling material and the linking member between each pile row and the pile, horizontal resistance of the pile can be expected, so that it is possible to expect an external force such as earth pressure. The stability of the wall structure can be enhanced and the displacement of the wall structure can be suppressed.
【0098】また、杭体を強固な基礎地盤に根入れする
ことにより、地盤沈下に伴う壁体の沈下を抑制できる。Further, by substituting the pile body into the strong foundation ground, it is possible to suppress the settlement of the wall body due to the ground settlement.
【0099】また、壁体は、連係部材で繋がれた杭式ラ
ーメン構造に取付けるため、中詰め材の充填が完了する
までの間の施工時の波浪等に対する外力に対しても安定
性が高い。Further, since the wall is attached to the pile type rigid frame structure connected by the linking member, it is highly stable against external force against waves and the like during construction until the filling of the filling material is completed. .
【0100】第2発明によると、次の効果がある。According to the second invention, there are the following effects.
【0101】 各杭列を繋ぐ連係部材として、ユニッ
ト化された鋼製梁部材を用いる場合、連係部材は工場で
製作することができるため壁体の急速施工が可能であ
る。また、連係部材が軽量であるため、大きな施工機械
が必要でない。When a unitized steel beam member is used as the linking member that connects the pile rows, the linking member can be manufactured at the factory, so that the wall body can be rapidly installed. Moreover, since the linking member is lightweight, a large construction machine is not required.
【0102】第3発明によると、次の効果がある。According to the third invention, there are the following effects.
【0103】 連係部材として鉄筋コンクリートパネ
ルや鉄骨鉄筋コンクリートパネルやプレストレスコンク
リートのパネル等を用いることにより、高耐久性を有す
る連係部材を安価に製作でき、連係部材を現場で製作す
ることも可能となる。また、中詰め材の充填は、材料供
給・施工機械の能力に応じて施工する必要がある、連係
部材として該パネル部材を用いることにより、中詰め材
施工時の隣接施工施工区域との隔壁として使用すること
ができる。By using a reinforced concrete panel, a steel reinforced concrete panel, a prestressed concrete panel or the like as the linking member, the linking member having high durability can be manufactured at low cost, and the linking member can be manufactured on site. Also, the filling of the filling material needs to be carried out according to the capacity of the material supply / construction machine.By using the panel member as a linking member, it can be used as a partition wall with the adjacent construction area when the filling material is constructed. Can be used.
【0104】第4発明によると、次の効果がある。According to the fourth invention, there are the following effects.
【0105】 前記杭と直線矢板の継手部間に、アス
ファルト等のすべりを許容する材料を介在させることに
より、中詰め材の沈下に伴なう、杭の付加的外力の作用
を抑制できる。By interposing a slip-permitting material such as asphalt between the pile and the straight sheet pile joint, it is possible to suppress the action of the additional external force of the pile accompanying the sinking of the filling material.
【0106】第5発明によると、次の効果がある。According to the fifth invention, there are the following effects.
【0107】 壁体を構成する直線矢板の代わりに、
端部に継手を有する円弧状の鋼板を用いることにより、
壁体部に継手が少なくなるため、施工時の安定性が高
く、遮水性能が高めることができる。Instead of the straight sheet piles that make up the wall,
By using an arc-shaped steel plate with a joint at the end,
Since the number of joints on the wall is small, stability during construction is high and water impermeability can be improved.
【0108】第6発明によると、次の効果がある。According to the sixth invention, the following effects can be obtained.
【0109】 本構造は、直線矢板からなる壁体と鋼
管矢板からなる壁体が2重に配置されるとともに中詰め
材が充填されているため遮水性の高い構造であるが、複
数の直線矢板あるいは鋼管矢板の相互間を連結する継ぎ
手の間隙に、止水性の高い材料が充填することにより、
壁体部の止水性をさらに高めることができる。This structure has a high water-impervious structure because the wall body made of straight sheet piles and the wall body made of steel pipe sheet piles are doubly arranged and filled with the filling material. Alternatively, by filling the gap of the joint that connects the steel pipe sheet piles with each other with a highly water-stopping material,
The water blocking performance of the wall body portion can be further enhanced.
【0110】第7発明によると、次の作用効果がある。According to the seventh aspect of the present invention, there are the following operational effects.
【0111】 本構造は、直線矢板からなる壁体Aと
鋼管矢板からなる壁体Bが2重に配置されるとともに中
詰め材が充填されているため遮水性の高い構造である
が、一方の壁体の打ち込み深さを他方の壁体の打ち込み
深さを、例えば、壁体の安定性の確保に必要な深さより
も大きくすることにより、壁体部下側の止水性も高める
ことができる。This structure has a high water-impervious structure because the wall A made of straight sheet piles and the wall B made of steel pipe sheet piles are doubly arranged and filled with the filling material. By setting the driving depth of the wall body to be larger than the driving depth of the other wall body, for example, the depth required for ensuring the stability of the wall body, the water stoppage under the wall body portion can be increased.
【0112】第8発明によると、次の効果がある。According to the eighth invention, there are the following effects.
【0113】本構造は、直線矢板からなる壁体Aと鋼管
矢板からなる壁体Bが2重に配置されるとともに中詰め
材が充填されているため遮水性の高い構造であるが、陸
側に鋼管矢板からなる壁体Bに配置し、その壁体の打ち
込み深さを、海側に配置の直線矢板からなる壁体Aの打
ち込み深さよりも深くし、例えば、壁体の安定性の確保
に必要な深さよりも大きくすることにより、鋼管矢板壁
の引き抜き抵抗が向上させると共に、陸側に産業廃棄物
処理場を設ける場合などには、遮水壁として、壁体部下
側の止水性も高めることができる。This structure has a high water impermeability because the wall A made of straight sheet piles and the wall B made of steel pipe sheet piles are doubly arranged and filled with filling material. Is placed in the wall body B made of steel pipe sheet pile, and the driving depth of the wall body is made deeper than the driving depth of the wall body A made of the straight sheet pile arranged on the sea side, for example, to secure the stability of the wall body. By making it larger than the required depth, the withdrawal resistance of the steel pipe sheet pile wall is improved, and when an industrial waste treatment plant is set up on the land side, it also acts as a water shield wall and also has a waterproof function under the wall. Can be increased.
【図1】(A)、(B)は、護岸壁の端部がストラップ
タイプ構造の護岸壁を示す概略平面図と側面図である。1A and 1B are a schematic plan view and a side view showing a seawall with a strap type structure in which an end portion of the seawall is a strap type structure.
【図2】実施形態1の要部の全体説明図である。FIG. 2 is an overall explanatory diagram of a main part of the first embodiment.
【図3】杭列間を繋ぐ連係部材の例として、実施形態1
に係る鋼製梁部材ユニットの杭への挿入時の説明図であ
る。FIG. 3 is a first embodiment as an example of a linking member that connects pile rows.
It is explanatory drawing at the time of inserting in the pile of the steel beam member unit concerning.
【図4】(A)は鋼製梁部材ユニットの杭への挿入後の
説明図、(B)は、同(A)の杭と主鋼管との嵌合状態
を示す平面図、(C)は、一方の杭列に構築される複数
の直線矢板からなる外に凸の壁体と他方の杭列に構築さ
れる複数の鋼管矢板からなる直線状の壁体を示す同
(A)の平面図である。FIG. 4A is an explanatory view after the steel beam member unit is inserted into a pile, FIG. 4B is a plan view showing a fitted state of the pile of FIG. 4A and a main steel pipe, and FIG. Is a plane of the same (A) showing an outwardly convex wall body composed of a plurality of linear sheet piles constructed in one pile row and a linear wall body composed of a plurality of steel pipe sheet piles constructed in the other pile row. It is a figure.
【図5】(A)は主鋼管を介して杭と直線矢板との接合
構造を示す部分拡大断面図、(B)は主鋼管を介して杭
と鋼管矢板との接合構造を示す部分拡大断面図である。5A is a partially enlarged cross-sectional view showing a joint structure between a pile and a straight sheet pile through a main steel pipe, and FIG. 5B is a partially enlarged cross-sectional view showing a joint structure between a pile and a steel pipe sheet pile through a main steel pipe. It is a figure.
【図6】杭と主鋼管との接合構造を示す部分拡大断面図
である。FIG. 6 is a partially enlarged sectional view showing a joint structure between a pile and a main steel pipe.
【図7】(A)、(B)、(C)は、実施形態1の護岸
壁施工ステップを3段階で示す斜視図である。7 (A), (B), and (C) are perspective views showing the revetment wall construction steps of the first embodiment in three stages.
【図8】(A)、(B)は、実施形態1の護岸壁施工ス
テップを2段階で示す斜視図である。8A and 8B are perspective views showing a revetment wall construction step of the first embodiment in two stages.
【図9】実施形態2の要部の全体説明図である。FIG. 9 is an overall explanatory diagram of a main part of the second embodiment.
【図10】杭列間を繋ぐ連係部材の例として、実施形態
2に係る内壁タイプの鋼製梁部材ユニットの杭への係合
時の説明図である。FIG. 10 is an explanatory diagram when an inner wall type steel beam member unit according to the second embodiment is engaged with a pile as an example of a linking member that connects pile rows.
【図11】(A)は鋼製梁部材ユニットと杭との係合後
の説明図、(B)は、同(A)の杭と鋼製梁部材ユニッ
トの係合状態を示す平面図、(C)は、一方の杭列にお
ける各杭間に構築される複数の直線矢板からなる外側に
凸の壁体と、他方の杭列における各杭間に構築される複
数の鋼管矢板からなる直線状の壁体とを示す同(A)の
平面図である。FIG. 11 (A) is an explanatory diagram after the steel beam member unit and the pile are engaged, and FIG. 11 (B) is a plan view showing the engaged state of the pile and the steel beam member unit of the same (A). (C) is a straight wall composed of a plurality of straight sheet piles constructed between the piles in one pile row and a plurality of steel pipe sheet piles constructed between the piles in the other pile row. It is a top view of the same (A) which shows a wall-shaped body.
【図12】(A)は、一方の壁体における杭と直線矢板
との接合構造を示す部分拡大断面図、(B)は他方の壁
体における杭と鋼管矢板との接合構造を示す部分拡大断
面図である。FIG. 12 (A) is a partially enlarged sectional view showing a joint structure between a pile and a straight sheet pile on one wall body, and (B) is a partially enlarged sectional view showing a joint structure between a pile and a steel pipe sheet pile on the other wall body. FIG.
【図13】杭と鋼製梁部材ユニットの接合構造を示す拡
大断面図である。FIG. 13 is an enlarged cross-sectional view showing a joint structure of a pile and a steel beam member unit.
【図14】(A)、(B)、(C)は、実施形態2の護
岸壁施工ステップを3段階で示す斜視図である。14 (A), (B), and (C) are perspective views showing a revetment wall construction step of Embodiment 2 in three stages.
【図15】(A)、(B)は、実施形態2の護岸壁施工
ステップを2段階で示す斜視図である。15 (A) and 15 (B) are perspective views showing a revetment wall construction step of Embodiment 2 in two stages.
【図16】実施形態3の要部の全体説明図である。FIG. 16 is an overall explanatory diagram of a main part of the third embodiment.
【図17】杭列間を繋ぐ連係部材の例として、実施形態
3に係るRCパネルユニットの杭への係合時の説明図で
ある。FIG. 17 is an explanatory diagram when an RC panel unit according to the third embodiment is engaged with a pile as an example of a linking member that connects pile rows.
【図18】(A)はRCパネルユニットの杭への係合後
の説明図、(B)は、同(A)の杭とRCパネルユニッ
トの係合状態を示す平面図、(C)は、一方の杭列に構
築される複数の直線矢板からなる外に凸の壁体と他方の
杭列に構築される複数の鋼管矢板からなる直線状の壁体
を示す同(A)の平面図である。FIG. 18 (A) is an explanatory diagram after the RC panel unit is engaged with the pile, FIG. 18 (B) is a plan view showing the engaged state of the pile and the RC panel unit of FIG. 18 (A), and FIG. A plan view of the same (A) showing an outwardly convex wall body composed of a plurality of linear sheet piles constructed in one pile row and a linear wall body composed of a plurality of steel pipe sheet piles constructed in the other pile row. Is.
【図19】(A)は杭と直線矢板壁との接合構造を示す
拡大断面図、(B)は杭と鋼管矢板壁との接合構造を示
す拡大断面図である。FIG. 19 (A) is an enlarged sectional view showing a joint structure between a pile and a straight sheet pile wall, and FIG. 19 (B) is an enlarged sectional view showing a joint structure between a pile and a steel pipe sheet pile wall.
【図20】杭とRCパネルユニットとの接合構造を示す
拡大断面図である。FIG. 20 is an enlarged sectional view showing a joint structure between a pile and an RC panel unit.
【図21】(A)、(B)、(C)は、実施形態3の護
岸壁施工ステップを3段階で示す斜視図である。21 (A), (B), and (C) are perspective views showing the steps for constructing a seawall according to the third embodiment in three stages.
【図22】本発明の他の実施形態を示し、直線状鋼矢板
壁に比べて鋼管矢板壁の打ち込み深さを深くした形態を
示す全体説明図である。FIG. 22 is an overall explanatory view showing another embodiment of the present invention, in which the driving depth of the steel pipe sheet pile wall is made deeper than that of the straight steel sheet pile wall.
【図23】本発明の他の実施形態を示し、鋼管矢板壁に
比べて直線状鋼矢板壁の打ち込み深さを深くした形態を
示す全体説明図である。FIG. 23 is an overall explanatory view showing another embodiment of the present invention and showing a configuration in which a linear steel sheet pile wall has a deeper driving depth as compared with a steel pipe sheet pile wall.
【図24】従来例を示し、(A)、(B)は、円筒形の
鋼矢板セルとダイアフラム形セルの護岸構造の平面説明
図である。FIG. 24 shows a conventional example, and (A) and (B) are plan explanatory views of a revetment structure of a cylindrical steel sheet pile cell and a diaphragm cell.
1 直線型鋼矢板 2 円筒型セル 3 円弧状の継手 4 中詰め土 5 円弧状鋼矢板壁 6 円弧状壁列 7 端部(少幅部) 8 鋼製連結部材 9 護岸壁 10 海底地盤 11 杭 12 杭列 13 嵌合継手 14A 直線矢板 14A 鋼管矢板 15A 鋼矢板壁 15B 鋼管矢板壁 16 連係部材 17 中詰め土 18 主鋼管 19 端部セル 20 斜材 22 海面 23 基礎地盤 24 盛土 25 背面土 26 接合部材 27 鋼製梁部材ユニット 27a 鋼製梁部材ユニット 27b RCパネルユニット 28 上部水平材 30 下部水平材 31 斜材 32 溶接 33 間隙 34 グラウト 35 端部継手部材 37 地盤改良範囲 38 クレーン船 39 上部工 40 連結部材 41 矢板継手部材 42 間仕切り用架設矢板 43 シアキー (イ) 海側 (ロ) 陸側 1 Straight type steel sheet pile 2 Cylindrical cell 3 Arc-shaped joint 4 filling soil 5 Arc steel sheet pile wall 6 Arc-shaped wall row 7 edge part (small width part) 8 Steel connection members 9 seawall 10 submarine ground 11 piles 12 pile rows 13 Mating joint 14A straight sheet pile 14A steel pipe sheet pile 15A steel sheet pile wall 15B steel pipe sheet pile wall 16 Link members 17 Filling soil 18 Main steel pipe 19 Edge cell 20 diagonal 22 sea level 23 foundation ground 24 embankments 25 back soil 26 Joining members 27 Steel beam member unit 27a Steel beam member unit 27b RC panel unit 28 Upper horizontal material 30 Lower horizontal material 31 diagonal 32 welding 33 Gap 34 grout 35 End joint member 37 Ground improvement range 38 crane ships 39 Superstructure 40 Connection member 41 Sheet Pile Joint Member 42 Erection sheet pile for partition 43 Sheakey (B) Sea side (B) Land side
───────────────────────────────────────────────────── フロントページの続き (72)発明者 木下 雅敬 富津市新富20−1 新日本製鐵株式会社技 術開発本部内 (72)発明者 川端 規之 東京都千代田区大手町2−6−3 新日本 製鐵株式会社内 Fターム(参考) 2D018 BA15 BA16 2D049 EA03 FB03 FB12 FB14 FC02 FC03 FD04 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Masataka Kinoshita 20-1 Shintomi, Futtsu City Nippon Steel Co., Ltd. Inside the surgical development headquarters (72) Inventor Noriyuki Kawabata 2-6-3 Otemachi, Chiyoda-ku, Tokyo New Japan Steelmaking Co., Ltd. F-term (reference) 2D018 BA15 BA16 2D049 EA03 FB03 FB12 FB14 FC02 FC03 FD04
Claims (8)
れた杭によって複数の杭列を平行に構築し、地中に打ち
込まれると共に外側に凸の円弧状に配置され、相互間が
継ぎ手で連結された複数の直線矢板の端部が前記各杭列
におけるいずれか一方の杭列に配置されると共にその杭
列における隣り合う各杭に連結されて壁体Aが構成さ
れ、地中に打ち込まれると共に直線状に配置され、相互
間が継ぎ手で連結された複数の鋼管矢板の端部が他方の
杭列における隣り合う各杭に連結されて壁体Bが構成さ
れており、前記各杭列間が連係部材で連繋され、前記壁
体A,B間に中詰め材が充填されてなる護岸構造。1. A plurality of pile rows are constructed in parallel by piles placed on the ground such as a seabed at a predetermined interval, and the pile rows are driven into the ground and arranged in a convex arc shape to the outside. The end portions of the plurality of linear sheet piles connected by the joint are arranged in one of the pile rows in each of the pile rows and are connected to the adjacent piles in the pile row to form the wall body A, The end portions of a plurality of steel pipe sheet piles which are driven in parallel with each other and are linearly arranged, and are connected to each other by joints are connected to adjacent piles in the other pile row to form the wall B, and A revetment structure in which pile rows are linked by a linking member, and a filling material is filled between the wall bodies A and B.
形鋼や鋼板等の鋼製梁部材ユニットで構成されていて、
嵌合によりまたは、継手部材を介して前記杭に連結され
ることを特徴とする請求項1記載の護岸構造。2. The connecting member for connecting the pile rows is a steel pipe or an H pipe.
It consists of steel beam member units such as shaped steel and steel plates,
The revetment structure according to claim 1, wherein the revetment structure is connected to the pile by fitting or through a joint member.
された鉄筋コンクリートパネル、鉄骨鉄筋コンクリート
パネルやプレストレスコンクリートパネルで構成され、
継手部材を介して前記杭に連結されることを特徴とする
請求項1記載の護岸構造。3. The linking member for connecting the pile rows is composed of a unitized reinforced concrete panel, a steel frame reinforced concrete panel or a prestressed concrete panel,
The revetment structure according to claim 1, wherein the revetment structure is connected to the pile via a joint member.
ァルト等のすべりを許容する材料を介在させて連結され
たことを特徴とする、請求項1〜4の何れか1項記載の
護岸構造。4. The seawall according to any one of claims 1 to 4, wherein a material such as asphalt which allows slipping is interposed between the joint portions of the piles and the straight sheet piles. Construction.
部に継手を有する円弧状の鋼板を用いた請求項1〜4の
何れか1項記載の護岸構造。5. The revetment structure according to claim 1, wherein an arcuate steel plate having a joint at an end is used instead of the straight sheet pile forming the wall body.
を連結する継ぎ手の間隙に、止水性の高い材料が充填さ
れ連結されたことを特徴とする、請求項1〜4の何れか
1項記載の護岸構造。6. A material having a high water-blocking property is filled and connected in a gap of a joint that connects a plurality of straight sheet piles or steel pipe sheet piles to each other. The seawall structure described.
体の打ち込み深さを、他方の壁体の打ち込み深さよりも
深くしたことを特徴とする、請求項1〜6の何れか1項
記載の護岸構造。7. The driving depth of one of the wall bodies A and B is set to be deeper than the driving depth of the other wall body, according to any one of claims 1 to 6. The revetment structure described in paragraph 1.
Bが陸側に設けられ、かつ前記壁体Bの打ち込み深さ
を、前記壁体Aの打ち込み深さよりも深くしたことを特
徴とする、請求項1〜7の何れか1項記載の護岸構造。8. The wall body A is provided on the sea side, the wall body B is provided on the land side, and the driving depth of the wall body B is made deeper than the driving depth of the wall body A. The revetment structure according to any one of claims 1 to 7, characterized in that.
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