JPS62236922A - Method of reinforcing sheet pile-wall structure - Google Patents
Method of reinforcing sheet pile-wall structureInfo
- Publication number
- JPS62236922A JPS62236922A JP7920086A JP7920086A JPS62236922A JP S62236922 A JPS62236922 A JP S62236922A JP 7920086 A JP7920086 A JP 7920086A JP 7920086 A JP7920086 A JP 7920086A JP S62236922 A JPS62236922 A JP S62236922A
- Authority
- JP
- Japan
- Prior art keywords
- sheet pile
- pile wall
- hole
- reinforcing
- wall structure
- 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
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 title claims description 15
- 239000002689 soil Substances 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims description 8
- 238000004873 anchoring Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Revetment (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、矢板壁構造物の補強方法に関するものであ
り、一層詳細には、既設の矢板構造物を増強する際に好
適に使用される補強方法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for reinforcing a sheet pile wall structure, and more specifically, a method suitably used when reinforcing an existing sheet pile structure. This relates to a reinforcing method.
従来より、矢板壁構造物は土留や締切などの仮設用構造
物あるいは繋船岸壁や護岸などの永久構造物の一部とし
て広範に使用される。Conventionally, sheet pile wall structures have been widely used as temporary structures such as earth retaining walls and cofferdams, or as part of permanent structures such as mooring quays and sea walls.
この矢板壁構造物は、横方向に並べた多数の鋼矢板、鋼
管矢板などの矢板を所定の深さまで打ち込んで壁面を形
成すると共にこの壁面上部と背部控え工とをタイロッド
等の定着引張部材を介して緊結し、矢板壁面に働く圧力
を控え工と鋼矢板の根入れ部分に働く土圧により支持す
る構造となっているが、矢板壁の断面強度が腐蝕等によ
り低下した際やこの矢板壁構造物を繋船岸壁として使用
した場合に矢板壁前面を浚渫して水深を深くする際等に
は矢板壁の補強を行う必要がある。This sheet pile wall structure is constructed by driving a large number of horizontally arranged sheet piles such as steel sheet piles and steel pipe sheet piles to a predetermined depth to form a wall surface, and connecting the upper part of the wall surface and the back support with fixed tension members such as tie rods. The structure is such that the pressure acting on the sheet pile wall is supported by the earth pressure acting on the backing work and the embedded part of the steel sheet pile, but when the cross-sectional strength of the sheet pile wall decreases due to corrosion etc. When the structure is used as a mooring quay and the front surface of the sheet pile wall is dredged to deepen the water depth, it is necessary to reinforce the sheet pile wall.
そこで、このような既設の矢板壁構造物を補強する手段
としては、既存の矢板壁を撤去して造り直したり、前面
に大型の矢板壁を形成して既存の矢板壁を包み込んだり
する方法等が採用されているが、いずれの方法も大工事
で費用も嵩むという問題があり、殊に、繋船岸壁の場合
は周辺のパースも含めて使用不能となったりあるいは岸
壁法線の変更に伴う計画手続などに問題が生じるという
欠点があった。Therefore, as a means of reinforcing such an existing sheet pile wall structure, there are methods such as removing the existing sheet pile wall and rebuilding it, or forming a large sheet pile wall in the front and wrapping the existing sheet pile wall. However, both methods have the problem of large-scale construction and high costs.Especially in the case of moored quays, it may become unusable including the surrounding perspective, or the planning due to changes in the normal line of the quay. The drawback was that there were problems with procedures.
また、既設の矢板壁構造物の上部工（エプロン）を撤去
して裏込め土砂を大量に掘削した後、定着引張部材を増
設する方法も考えられるが、この場合は既設の定着引張
部材と控え工とのバランスに配慮しながら作業を行う必
要があるため極めて面倒であるだけでなく危険もともな
うため実際的でないという問題点を有していた。Another option is to remove the superstructure (apron) of the existing sheet pile wall structure and excavate a large amount of backfill soil, and then install additional anchorage tension members. This has the problem that it is not only extremely troublesome, but also impractical because it is dangerous, as it is necessary to carry out the work while taking into account the balance between the work and construction work.
そこで、この発明では前述の問題点を解決するために、
既設矢板壁構造物の控え工の背部からこの控え工および
裏込め土砂を介して矢板壁背面における既設引張定着部
材の取付位置下方に達する細孔を穿設し、次に矢板壁に
前記細孔と連通する通孔を開設し、細孔および通孔に引
張定着部材を挿通し、さらにこの引張定着部材の矢板側
端部を支保材を介して矢板壁に定着すると共に他端部側
を引張して控え工の所定個所に定着することにより増強
を図ろうとするものである。Therefore, in this invention, in order to solve the above-mentioned problems,
A small hole is drilled from the back of the support of the existing sheet pile wall structure through the support and backfilling soil to reach the lower part of the installation position of the existing tension anchoring member on the back of the sheet pile wall, and then the above-mentioned hole is drilled in the sheet pile wall. A through hole communicating with is opened, a tension fixing member is inserted into the small hole and the through hole, and the end of the tension fixing member on the sheet pile side is fixed to the sheet pile wall via the shoring material, and the other end side is pulled. The idea is to strengthen the structure by fixing it at a predetermined location on the backing work.
なお、この場合、控え工の背部から細孔を穿設するに際
し、控え工の背部の一部を掘削しておけば増設する引張
定着部材の定着傾斜角度を緩やかにすることができるの
で効果的な補強を行うことができ、さらには細孔は矢板
壁の前面もしくは背面のいずれからも開設することがで
きる。In this case, when drilling a small hole from the back of the support work, it is effective to excavate a part of the back of the support work because the anchoring angle of the tension anchoring member to be added can be made gentler. Further, the pores can be opened from either the front or back side of the sheet pile wall.
この発明に係る矢板壁構造物の補強方法では、既設の定
着引張部材と新設の定着引張部材とを共働させて補強を
行うものである。In the method for reinforcing a sheet pile wall structure according to the present invention, reinforcement is performed by making an existing anchoring tension member and a newly installed anchoring tension member work together.
次に、本発明に係る矢板壁構造物の補強方法の好適な実
施例につき添付図面を参照しながら以下詳細に説明する
。Next, a preferred embodiment of the method for reinforcing a sheet pile wall structure according to the present invention will be described in detail with reference to the accompanying drawings.
第１図は矢板壁構造物としての既設繋船岸壁を示すもの
であり、この繋船岸壁は横方向に並べた多数の鋼矢板ｌ
を海底に打ち込んで岸壁面３を形成すると共にこの岸壁
面３の背部に裏込め土砂５を介して控えエフを配設し、
控えエフと岸壁面３上部とをタイロフト９を介して緊結
することにより構成されており、裏込め土砂５上にはエ
プロン１１が設置されている。Figure 1 shows the existing mooring wharf as a sheet pile wall structure, and this mooring wharf consists of a large number of steel sheet piles arranged horizontally.
is driven into the seabed to form a quay wall surface 3, and at the same time a backfill is placed on the back of this quay surface 3 via backfill earth and sand 5,
It is constructed by tightly connecting the backing F and the upper part of the quay surface 3 via a tie loft 9, and an apron 11 is installed on the backfill earth 5.
このように構成される繋船岸壁を補強するに際しては、
まず、上部コンクリート９背部のエプロン部分を取り除
き裏込め土砂５を所定の深さまで掘削して削孔機１３を
設置する（第２図参照）。When reinforcing the mooring quay constructed in this way,
First, the apron portion at the back of the upper concrete 9 is removed, backfill earth and sand 5 is excavated to a predetermined depth, and a hole drilling machine 13 is installed (see FIG. 2).
なお、この場合、控え工側取付は位置を上方にとる場合
はこの掘削工程を省略することもできる。In this case, this excavation step can be omitted if the mounting on the backing work side is to be located upward.
次に、削孔機１３を使用して控えエフ、裏込め土砂５を
介して岸壁背面においてタイロッド９の取付位置下方に
達する所定角度の細孔１５を穿設し、この細孔１５が岸
壁背面に達したらそのままの角度で岸壁面３に通孔１７
を開設する（第３図参照）。また、通孔１７を開設する
方法としては適宜の穿孔機を使用して岸壁面３前方から
開設することもできる。Next, a hole 15 at a predetermined angle is drilled using the hole drilling machine 13 to reach the lower part of the attachment position of the tie rod 9 on the back side of the quay wall through the backfilling earth and sand 5. When it reaches the angle, insert the through hole 17 into the quay surface 3 at the same angle.
(See Figure 3). Further, as a method of opening the through hole 17, it is also possible to open it from the front of the quay surface 3 using an appropriate drilling machine.
次いで、削孔機１３を移動した後控えエフ背部側から新
設のタイロッド１９を細孔１５および通孔１７を介して
挿通配置し、このタイロッド１９の一端部を適宜の取着
具（図示せず）により腹起し２１を介して岸壁面３に定
着すると共に他端部を適宜の引張装置で引張した状態で
控えエフに定着することにより該岸壁面３と控えエフと
を緊結し、さらに掘削部分を覆土した後エプロンを形成
する（第４図参照）。Next, a newly installed tie rod 19 is inserted through the small hole 15 and the through hole 17 from the back side of the rear support F after the hole drilling machine 13 has been moved, and one end of this tie rod 19 is attached to an appropriate fitting (not shown). ), the quay surface 3 is fixed to the quay surface 3 via the upright 21, and the other end is fixed to the backing F with the other end being pulled by an appropriate tensioning device, thereby tightening the quay wall surface 3 and the backing F, and further excavating. After covering the area with soil, form an apron (see Figure 4).
このような繋船岸壁の補強方法によれば、定着引張部材
を増設するだけなので簡便で工事期間中でも岸壁の使用
が可能であるだけでなく、岸壁法線の移動もなく、工事
費も安価で所期の目的を達成することができる。According to this method of reinforcing a moored quay, it is simple and allows the quay to be used even during the construction period because it only requires the addition of fixed tension members, and there is no movement of the quay's normal line, and the construction cost is low and the space can be saved. be able to achieve the objectives of the term.
先に述べたように本発明方法は控え工、裏込め土砂およ
び矢板壁に削孔を行って定着引張部材の増設を行うだけ
なので極めて安全にかつ容易に補強することができるだ
けでなく、裏込め土砂の除去を行う必要がないので、増
設した定着引張部材に対する裏込め土砂による曲げ応力
の影響も少なく、従って、リングジヨイントも不用とな
り確実な補強を達成することができる等積々の利点を有
する。As mentioned earlier, the method of the present invention only involves drilling holes in the support work, backfilling earth and sand, and sheet pile walls and adding anchorage tension members, so not only can reinforcement be extremely safe and easy, but also the backfilling Since there is no need to remove earth and sand, the influence of bending stress due to backfilling earth and sand on the added anchorage tension member is small, and therefore, there is no need for a ring joint, and reliable reinforcement can be achieved. have
以上、本発明方法の好適な実施例として繋船岸壁の補強
方法につき説明したが、本発明方法はこの実施例に限定
されるものではなく、例えば、ドライドツクの場合等は
矢板壁前面から控え工に達する通孔および細孔を穿設し
てもよく、また、自立式矢板壁構造物の場合は控え工の
新設と併せて行えば有効な補強方法としても利用でき、
さらには定着引張部材としてタイロープなどを使用する
等本発明の精神を逸脱しない範囲内において種々の変更
をなし得ることは勿論である。Although the method of reinforcing a mooring quay has been described above as a preferred embodiment of the method of the present invention, the method of the present invention is not limited to this embodiment. Through holes and pores may be drilled to reach the wall, and in the case of free-standing sheet pile wall structures, it can be used as an effective reinforcement method if done in conjunction with the installation of new buttresses.
Furthermore, it goes without saying that various modifications can be made without departing from the spirit of the invention, such as using a tie rope or the like as the fixing tension member.
第１図は本発明方法を実施する場合の既設繋船岸壁の説
明図、第２図〜第４図は第１図に示す既設繋船岸壁の補
強方法の説明図である。
ｌ：鋼矢板、 ３：岸壁面、
５：裏込め土砂、 ７：控え工、
９：タイロッド、 １１：エプロン、１３：削孔機
、 １５：細孔、
１７：通孔、 １９：タイロッド、２１：腹起
し。FIG. 1 is an explanatory diagram of an existing mooring quay in the case of carrying out the method of the present invention, and FIGS. 2 to 4 are explanatory diagrams of a method for reinforcing the existing mooring quay shown in FIG. 1. l: steel sheet pile, 3: quay surface, 5: backfill earth and sand, 7: backfill, 9: tie rod, 11: apron, 13: hole drilling machine, 15: small hole, 17: through hole, 19: tie rod, 21 : Get up on your stomach.
Claims (4)
介して矢板壁背面における既設引張定着部材の取付位置
下方に達する細孔を穿設し、次に矢板壁に前記細孔と連
通する通孔を開設し、前記細孔および通孔に引張定着部
材を挿通し、さらにこの引張定着部材の矢板側端部を支
保材を介して矢板壁に定着すると共に他端部を引張して
控え工の所定個所に定着することを特徴とする矢板壁構
造物の補強方法。(1) Drill a small hole from the back of the support work through the support work and backfilling soil to reach the lower part of the mounting position of the existing tension anchoring member on the back side of the sheet pile wall, and then communicate with the above hole in the sheet pile wall. A through hole is opened, a tension fixing member is inserted into the small hole and the through hole, and the end of the tension fixing member on the sheet pile side is fixed to the sheet pile wall via the shoring material, and the other end is pulled and secured. A method for reinforcing a sheet pile wall structure, which is characterized by being anchored at a predetermined location in the structure.
の背部を予じめ掘削することからなる特許請求の範囲第
１項記載の矢板壁構造物の補強方法。(2) The method for reinforcing a sheet pile wall structure according to claim 1, which comprises excavating the back of the backing in advance when drilling the pores from the back of the backing.
特許請求の範囲第１項又は第２項記載の矢板壁構造物の
補強方法。(3) The method for reinforcing a sheet pile wall structure according to claim 1 or 2, wherein the through hole is opened from the front side of the sheet pile wall.
壁の背面からそのまま開設することからなる特許請求の
範囲第１項又は第２項記載の矢板壁構造物の補強方法。(4) A method for reinforcing a sheet pile wall structure according to claim 1 or 2, wherein the through hole is opened directly from the back side of the sheet pile wall when boring the small hole from the back side of the support work. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7920086A JPS62236922A (en) | 1986-04-08 | 1986-04-08 | Method of reinforcing sheet pile-wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7920086A JPS62236922A (en) | 1986-04-08 | 1986-04-08 | Method of reinforcing sheet pile-wall structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62236922A true JPS62236922A (en) | 1987-10-17 |
| JPH0340169B2 JPH0340169B2 (en) | 1991-06-18 |
Family
ID=13683318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7920086A Granted JPS62236922A (en) | 1986-04-08 | 1986-04-08 | Method of reinforcing sheet pile-wall structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62236922A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275891A (en) * | 2001-03-13 | 2002-09-25 | Chem Grouting Co Ltd | Construction method of tie rod anchor |
| JP2011043047A (en) * | 2010-11-29 | 2011-03-03 | Ohbayashi Corp | Improved/reinforced structure of existing gravity type quay |
| CN106245657A (en) * | 2016-08-25 | 2016-12-21 | 安徽省城建设计研究总院有限公司 | A kind of purlin anchor supporting construction for pattern foundation pit supporting structure |
-
1986
- 1986-04-08 JP JP7920086A patent/JPS62236922A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275891A (en) * | 2001-03-13 | 2002-09-25 | Chem Grouting Co Ltd | Construction method of tie rod anchor |
| JP2011043047A (en) * | 2010-11-29 | 2011-03-03 | Ohbayashi Corp | Improved/reinforced structure of existing gravity type quay |
| CN106245657A (en) * | 2016-08-25 | 2016-12-21 | 安徽省城建设计研究总院有限公司 | A kind of purlin anchor supporting construction for pattern foundation pit supporting structure |
| CN106245657B (en) * | 2016-08-25 | 2018-12-18 | 安徽省城建设计研究总院股份有限公司 | A kind of purlin anchor support construction for pattern foundation pit supporting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0340169B2 (en) | 1991-06-18 |
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