JP2005180041A - Quay structure and method of forming the same - Google Patents

Quay structure and method of forming the same Download PDF

Info

Publication number
JP2005180041A
JP2005180041A JP2003423111A JP2003423111A JP2005180041A JP 2005180041 A JP2005180041 A JP 2005180041A JP 2003423111 A JP2003423111 A JP 2003423111A JP 2003423111 A JP2003423111 A JP 2003423111A JP 2005180041 A JP2005180041 A JP 2005180041A
Authority
JP
Japan
Prior art keywords
quay
sea
construction area
planar reinforcing
existing
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
Application number
JP2003423111A
Other languages
Japanese (ja)
Other versions
JP4551985B2 (en
Inventor
Koji Ichii
康二 一井
Yoshitoshi Miyata
喜壽 宮田
Mitsuharu Fukuda
光治 福田
Takao Hirai
貴雄 平井
Junichi Hironaka
淳市 弘中
Yasuhisa Takahane
泰久 高羽
Masaki Adachi
雅樹 足立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEO-RESEARCH INSTITUTE
Japan Steel Works Ltd
Technical Research and Development Institute of Japan Defence Agency
Mitsui Chemicals Industrial Products Ltd
National Institute of Maritime Port and Aviation Technology
Mirai Construction Co Ltd
Original Assignee
GEO-RESEARCH INSTITUTE
Japan Steel Works Ltd
Technical Research and Development Institute of Japan Defence Agency
Mitsui Chemicals Industrial Products Ltd
National Institute of Maritime Port and Aviation Technology
Mirai Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GEO-RESEARCH INSTITUTE, Japan Steel Works Ltd, Technical Research and Development Institute of Japan Defence Agency, Mitsui Chemicals Industrial Products Ltd, National Institute of Maritime Port and Aviation Technology, Mirai Construction Co Ltd filed Critical GEO-RESEARCH INSTITUTE
Priority to JP2003423111A priority Critical patent/JP4551985B2/en
Publication of JP2005180041A publication Critical patent/JP2005180041A/en
Application granted granted Critical
Publication of JP4551985B2 publication Critical patent/JP4551985B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Revetment (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a quay structure which is formed at a low cost, in a short construction period, without damaging the environment, and in a manner making effective use of earth produced at the time of dredging or excavating submarine sediment in a harbor, and to provide a method of forming the quay structure. <P>SOLUTION: The quay structure is formed of an earth pressure bearing structure 24, solidified earth 26, and a plurality of planar reinforcing members 28. The earth pressure bearing structure functions to enclose a sea area in the vicinity of an existing quay structure 2 as a quay construction area E, in cooperation with the existing quay structure, and is arranged along a peripheral area other than an area of the existing quay structure, to thereby separate sea water inside the construction area from that outside the construction area over a height from a sea level S to a sea bottom 22. The solidified earth is sequentially deposited at every predetermined height in the construction area from below upward. The planar reinforcing members are almost horizontally arranged like planes in the solidified earth at every predetermined height. Then the ends of the planar reinforcing members 28 are uniformly connected to the earth pressure bearing structure 24 on an offing side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、大型船舶が係留することができるようにするため、或は改修時等に形成される岸壁構造体及びその形成方法に関するものである。   The present invention relates to a quay structure and a method for forming the quay so that a large vessel can be moored or at the time of repair.

一般に港湾内の水域は、船舶が安全に航行あるいは停泊することができるように一定以上の水深を有している。また、港湾内の船舶の係留施設(係船施設)である岸壁におけるその近傍の海底も、コンテナ等の積卸しや船客の乗降の際に船舶を横付けすることができるようにするために一定以上の水深を有するようになっている。   In general, the water area in a harbor has a certain depth or more so that a ship can safely navigate or anchor. In addition, the seabed in the vicinity of the quay, which is a mooring facility for ships in the port (the mooring facility), can be placed more than a certain amount in order to be able to lay the vessel when loading / unloading containers, etc. It has a depth of water.

一方、近年の輸送量の増加に伴なって、船舶は大型化してきている。船舶は大型化するとその喫水線の下側に沈み込む部分も深くなるため、大型船舶が航行あるいは停泊する際に、既存の岸壁によってはその近傍の海底の水深が足りないという状況が生じていた。   On the other hand, ships are becoming larger with the recent increase in transportation volume. When a ship becomes larger, the part that sinks below the waterline becomes deeper, so when a large ship sails or anchors, there is a situation where the depth of the seabed in the vicinity is insufficient depending on the existing quay.

このような場合に従来は、大型船舶が安全に航行あるいは停泊することができるようにするために、港湾内の障害物の撤去や沈殿土砂の浚渫や掘削を行なうことにより水深を深くする他に、以下のような工事が行われていた。   Conventionally, in this case, in order to make it possible for large vessels to safely navigate or anchor, in addition to deepening the water depth by removing obstacles in the port, dredging sediments and excavating. The following construction was underway.

まず、図10に示すように、ケーソン4(ブロックや矢板等でも可)を用いて形成された既存の岸壁構造体2(既存岸壁構造体)から海の沖側に、例えば数10mないし数100m程度先の、水深が深くなる位置迄埋立土7により埋立てを行い、その先端部に新たな岸壁構造体8を構築することにより、その岸壁構造体8に大型船舶が係留することができるようにしていた(非特許文献1参照)。   First, as shown in FIG. 10, from the existing quay structure 2 (existing quay structure) formed using a caisson 4 (which may be a block, a sheet pile or the like), for example, several tens to several hundreds of meters By reclamation with landfill 7 until a position where the water depth becomes deeper, and constructing a new quay structure 8 at its tip, a large ship can be moored on the quay structure 8 (See Non-Patent Document 1).

図10において、符号5はケーソン4,14の裏側に補強用に埋設される裏込め石、符号6はケーソン4,14の下に設けられてそれらを支持する基礎捨石、符号14は、新たな岸壁構造体8に用いられるケーソン(ブロックや矢板等でも可)を示している。   In FIG. 10, reference numeral 5 is a backfilling stone embedded for reinforcement on the back side of the caissons 4, 14, reference numeral 6 is a basic rubble provided under the caissons 4, 14 to support them, and reference numeral 14 is a new stone The caisson (a block, a sheet pile, etc.) used for the quay structure 8 is shown.

一方、図11に示すように、ケーソン4(ブロックや矢板等でも可)を用いて形成された既存の岸壁構造体2から沖側に、例えば5mないし30m程度の位置、すなわちその位置を浚渫しても既存の岸壁構造体2の安定性が損なわれて崩れることがないように、岸壁構造体2から十分離れた位置までその先端が延びる桟橋12を構築し、その桟橋12の先端近傍の海底を浚渫することにより、桟橋12の先端に大型船舶が係留することができるようにしていた(非特許文献2参照)。   On the other hand, as shown in FIG. 11, for example, a position of about 5 m to 30 m, that is, a position of about 5 m to 30 m, is provided on the offshore side from the existing quay structure 2 formed using caisson 4 (block or sheet pile or the like is also possible). However, in order to prevent the stability of the existing quay structure 2 from being damaged and collapsing, the pier 12 whose tip extends to a position sufficiently away from the quay structure 2 is constructed, and the seabed near the tip of the pier 12 is constructed. By hovering, a large ship can be moored at the tip of the pier 12 (see Non-Patent Document 2).

「港湾計画研究会編 港湾計画書作成マニュアル」(第94頁参照)、社団法人日本港湾協会、平成9年発行"Port Planning Study Group edited by Port Planning Manual" (see page 94), Japan Port Association, published in 1997 「港湾技研資料 No.781」(改良・更新事例25,37参照)、運輸省港湾技術研究所、1994年9月発行"Port Engineering Research Materials No. 781" (Refer to Examples 25 and 37 of improvement / update), Ministry of Transport, Port Technology Research Institute, published in September 1994

しかしながら、図10に示すような、既存の岸壁構造体2から数10mないし数100m程度離れた沖側の位置に、その先端近傍の海底の水深が深くなるような岸壁構造体8を新たに形成する場合には、港湾の陸地や海の形態が大幅に変更される程大規模な埋立て工事が必要となるので、莫大な工費と長期の工事期間が必要となるだけでなく、埋立てによる環境破壊のおそれもあるという問題があった。   However, as shown in FIG. 10, a quay structure 8 is newly formed at a position on the offshore side that is several tens to several hundreds of meters away from the existing quay structure 2 so that the depth of the seabed near the tip becomes deep. In this case, a large-scale land reclamation work is required so that the land and sea forms of the port are changed drastically. There was a problem of environmental destruction.

また、図11に示すような、鉄筋コンクリート床板11が鋼管杭10に支持される桟橋12を延ばして設置する場合には、桟橋12は鋼管杭10と鉄筋コンクリート床板11による構造物であるため、施工が複雑となって工事費が高くつくという問題があった。   Moreover, when extending and installing the pier 12 in which the reinforced concrete floor board 11 is supported by the steel pipe pile 10 as shown in FIG. There was a problem that it was complicated and expensive to construct.

また、港湾内の海底土砂を浚渫又は掘削した場合には大量の土砂が発生するが、これらのうちの一部は何等かの有益な用途に利用(有効利用)されるとしても、有効利用することができない残りの土砂は、用地や処理場を確保して処分しなければならないのでそのための費用が必要となるという問題があった。   In addition, when dredging or excavating the seabed sediment in the harbor, a large amount of sediment is generated, but some of these will be used effectively even if they are used for some useful purposes (effective use). The remaining earth and sand that cannot be handled had to be disposed of by securing land and a treatment plant, which required a cost for it.

そこで本発明は、上記問題点に鑑みて、工事費用を安くすることができ、工事期間を短縮することができると共に、環境破壊を防止することができ、さらに、港湾内の海底土砂を浚渫又は掘削したときに発生する土砂を有効利用することができる岸壁構造体及びその形成方法を提供することを課題とするものである。   Therefore, in view of the above problems, the present invention can reduce the construction cost, shorten the construction period, prevent environmental destruction, and dredge or submarine sand in the harbor. It is an object of the present invention to provide a quay structure that can effectively use earth and sand generated when excavated and a method of forming the quay structure.

上記課題を解決するために、本発明による岸壁構造体は、
海岸線近傍の海域を海岸線と共に囲んだ施工領域の海岸線以外の周縁部に設けられて前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体と、
前記施工領域に下方から上方に所定高さずつ順次堆積される固化処理土と、
前記固化処理土中に所定高さずつ間隔をおいてほぼ水平方向に平面状に配置される複数の面状補強材とを備え、
前記複数の面状補強材の全部又は一部の各端部が沖側の前記抗土圧構造体に連結されることを特徴とするものである。
In order to solve the above problems, a quay structure according to the present invention is:
An anti-earthquake structure that is provided in a peripheral area other than the coastline of the construction area that surrounds the sea area in the vicinity of the coastline with the coastline and isolates the seawater inside and outside the construction area from the sea surface to the seabed;
Solidified soil that is sequentially deposited at a predetermined height from below to above in the construction area;
A plurality of planar reinforcing materials arranged in a plane in a substantially horizontal direction at intervals of a predetermined height in the solidified soil,
All or part of each of the plurality of planar reinforcing members is connected to the anti-earth pressure structure on the offshore side.

また、本発明による岸壁構造体は、
既設岸壁構造体の近傍の海域を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に設けられて前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体と、
前記施工領域に下方から上方に所定高さずつ順次堆積される固化処理土と、
前記固化処理土中に所定高さずつ間隔をおいてほぼ水平方向に平面状に配置される複数の面状補強材とを備え、
前記複数の面状補強材の全部又は一部の各端部が沖側の前記抗土圧構造体または前記既設岸壁構造体のいずれか一方に一律に連結されることを特徴とするものである。
The quay structure according to the present invention is
An anti-earthquake pressure structure that is provided at the periphery of the construction area other than the existing quay structure in the construction area that surrounds the sea area in the vicinity of the existing quay structure with the existing quay structure and isolates the sea water inside and outside the construction area from the sea surface to the seabed Body,
Solidified soil that is sequentially deposited at a predetermined height from below to above in the construction area;
A plurality of planar reinforcing materials arranged in a plane in a substantially horizontal direction at intervals of a predetermined height in the solidified soil,
All or a part of each of the plurality of planar reinforcing members is uniformly connected to either the anti-earthquake structure on the offshore side or the existing quay wall structure. .

また、本発明による岸壁構造体は、
既設岸壁構造体の近傍の海域を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に設けられて前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体と、
前記施工領域に下方から上方に所定高さずつ順次堆積される固化処理土と、
前記固化処理土中に所定高さずつ間隔をおいてほぼ水平方向に平面状に配置される複数の面状補強材とを備え、
前記複数の面状補強材の全部又は一部の各端部が沖側の前記抗土圧構造体及び前記既設岸壁構造体のいずれか一方に深さに応じて交互に連結されるようにしたことを特徴とするものである。
The quay structure according to the present invention is
An anti-earthquake pressure structure that is provided at the peripheral edge other than the existing quay wall structure in the construction area that surrounds the sea area in the vicinity of the existing quay structure together with the existing quay wall structure, and isolates the sea water inside and outside the construction area from the sea surface to the sea floor Body,
Solidified soil that is sequentially deposited at a predetermined height from below to above in the construction area;
A plurality of planar reinforcing materials arranged in a plane in a substantially horizontal direction at intervals of a predetermined height in the solidified soil,
All or a part of each of the plurality of planar reinforcing materials is alternately connected to either one of the anti-earthquake structure on the offshore side and the existing quay wall structure according to the depth. It is characterized by this.

また前記抗土圧構造体は、鋼矢板、鋼管矢板又はコンクリート製矢板、所定の構造体等により構成させることができる。   Moreover, the said anti-earth pressure structure can be comprised with a steel sheet pile, a steel pipe sheet pile or a concrete sheet pile, a predetermined structure, etc.

また前記固化処理土は、浚渫土砂又は掘削土砂に、セメント、石灰、酸化マグネシウム、或いは石こう等の固化材を混合して、固化する前は粘性を有し、海中でも時間の経過と共に固化することができる。   The solidified soil is mixed with dredged soil or excavated soil and solidified material such as cement, lime, magnesium oxide, or gypsum, has a viscosity before solidifying, and solidifies over time in the sea. Can do.

また前記面状補強材は、可撓性を有し、網目を有する平面状又は網目を有しないシート状に形成させることができる。   The planar reinforcing material has flexibility and can be formed into a planar shape having a mesh or a sheet having no mesh.

また、本発明による岸壁構造体は、沖側の前記抗土圧構造体近傍の海底を掘削して海底深さを増加するようにすることができる。   In addition, the quay structure according to the present invention can increase the seabed depth by excavating the seabed near the anti-earthquake structure on the offshore side.

また、本発明による岸壁構造体の形成方法は、
海岸線近傍の海域を海岸線と共に囲んだ施工領域の海岸線以外の周縁部に前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体を設ける工程の後に、
前記施工領域に下方から上方に所定高さずつ順次固化処理土を堆積させる工程と、
前記堆積させた固化処理土の上に配置した面状補強材の全部又は一部の各端部を沖側の前記抗土圧構造体に連結する工程とを交互に繰り返して形成することを特徴とするものである。
Moreover, the method for forming a quay structure according to the present invention includes:
After the step of providing an anti-earthquake structure that isolates the seawater inside and outside the construction area from the sea surface to the sea floor at the periphery other than the coastline of the construction area that surrounds the sea area near the coastline with the coastline,
A step of sequentially depositing solidified soil in a predetermined height from below to above in the construction area;
It is formed by alternately repeating the step of connecting all or a part of each end of the planar reinforcing material disposed on the solidified soil thus deposited to the anti-earth pressure structure on the offshore side. It is what.

また、本発明による岸壁構造体の形成方法は、
既設岸壁構造体の近傍の海面を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体を設ける工程の後に、
前記施工領域に下方から上方に所定高さずつ順次固化処理土を堆積させる工程と、
前記堆積させた固化処理土の上に配置した面状補強材の全部又は一部の各端部を沖側の前記抗土圧構造体または前記既設岸壁構造体に一律に連結する工程とを交互に繰り返して形成することを特徴とするものである。
Moreover, the method for forming a quay structure according to the present invention includes:
An anti-soil pressure structure that isolates the sea water inside and outside the construction area from the sea surface to the sea floor is provided at the peripheral edge other than the existing quay structure in the construction area that surrounds the sea surface in the vicinity of the existing quay structure with the existing quay structure. After the process
A step of sequentially depositing solidified soil in a predetermined height from below to above in the construction area;
Steps of uniformly connecting all or part of the ends of the planar reinforcing material disposed on the solidified soil thus deposited to the anti-earth pressure structure on the offshore side or the existing quay wall structure alternately It is characterized by being repeatedly formed.

また、本発明による岸壁構造体の形成方法は、
既設岸壁構造体の近傍の海面を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体を設ける工程の後に、
前記施工領域に下方から上方に所定高さずつ順次固化処理土を堆積させる工程と、
前記堆積させた固化処理土の上に配置した面状補強材の全部又は一部の各端部を沖側の前記抗土圧構造体及び前記既設岸壁構造体のいずれか一方に交互に連結する工程とを交互に繰り返して形成することを特徴とするものである。
Moreover, the method for forming a quay structure according to the present invention includes:
An anti-soil pressure structure that isolates the sea water inside and outside the construction area from the sea surface to the sea floor is provided at the peripheral edge other than the existing quay structure in the construction area that surrounds the sea surface in the vicinity of the existing quay structure with the existing quay structure. After the process
A step of sequentially depositing solidified soil in a predetermined height from below to above in the construction area;
Ends of all or part of the planar reinforcing material arranged on the solidified soil thus deposited are alternately connected to either the anti-earth pressure structure on the offshore side or the existing quay wall structure. The process is formed by alternately repeating the process.

このような本発明による岸壁構造体及びその形成方法によれば、抗土圧構造体と比較的低強度の固化処理土が靱性に優れた複数の面状補強材を介して一体化し、ねばり強い強度を発揮することができるようになっているため、十分な構造安定性を有すると共に、工事費用を安くすることができ、工事期間を短縮することができ、環境破壊を防止することができ、さらに、港湾内の海底土砂を浚渫又は掘削したときに発生する土砂を有効利用することができるような、岸壁構造体を形成することができる。   According to such a quay structure and a method for forming the same according to the present invention, the anti-earth pressure structure and the relatively low-strength solidified soil are integrated through a plurality of planar reinforcing materials having excellent toughness, and have strong strength. It is possible to exert a sufficient structural stability, so that construction costs can be reduced, construction periods can be shortened, environmental destruction can be prevented, and A quay structure that can effectively utilize the sediment generated when dredging or excavating the seabed sediment in the harbor can be formed.

以下に、本発明に係る岸壁構造体及びその形成方法の実施の形態について、図面に基づいて具体的に説明する。
図1ないし図4は、本発明の第1の実施の形態に係る岸壁構造体20及びその形成方法について説明するために参照する図である。
DESCRIPTION OF EMBODIMENTS Embodiments of a quay structure and a method for forming the same according to the present invention will be specifically described below with reference to the drawings.
FIGS. 1 to 4 are views referred to for explaining a quay structure 20 and a method for forming the same according to the first embodiment of the present invention.

図1は、既存の岸壁構造体2(既設岸壁構造体に相当)に対して沖側に形成した、本実施の形態に係る岸壁構造体20を示す断面図である。   FIG. 1 is a cross-sectional view showing a quay structure 20 according to the present embodiment formed on the shore side with respect to an existing quay structure 2 (corresponding to an existing quay structure).

本実施の形態に係る岸壁構造体20は、施工領域E(図4参照)の周縁部a,b,cや境界部d,e,fに設けられ、施工領域Eの内外の海域間を、或いは互に隣合う海域間を、海面から海底にわたって隔離する抗土圧構造体24を備えると共に、上記施工領域Eに下方から上方に所定高さずつ堆積される固化処理土26と、固化処理土26中に所定高さの間隔をおいてほぼ水平方向に平面状に配置される複数の面状補強材28とを備えている。   The quay wall structure 20 according to the present embodiment is provided at the peripheral edge portions a, b, c and the boundary portions d, e, f of the construction area E (see FIG. 4), and between the sea areas inside and outside the construction area E, Alternatively, there is provided an anti-earth pressure structure 24 that isolates the sea areas adjacent to each other from the sea surface to the sea bottom, and a solidified soil 26 that is deposited in the construction area E from the lower side by a predetermined height and a solidified soil. 26 includes a plurality of planar reinforcing members 28 arranged in a plane in a substantially horizontal direction at intervals of a predetermined height.

特に施工領域Eの沖側の周縁部bに設けられる抗土圧構造体24としては、下端部が海底に打設されて、その上端部が海面から上方に突出するようにした鋼矢板が用いられる。上記固化処理土26中に配置される複数の面状補強材28は、その各端部28aが上記沖側の抗土圧構造体24の鋼矢板に連結されるようになっている。   In particular, as the anti-earth pressure structure 24 provided at the peripheral edge b on the offshore side of the construction area E, a steel sheet pile having a lower end portion driven on the sea bottom and an upper end portion protruding upward from the sea surface is used. It is done. The plurality of planar reinforcing members 28 arranged in the solidified soil 26 are connected to the steel sheet piles of the anti-earth pressure structure 24 on the offshore side.

本実施の形態に係る岸壁構造体20の、上記沖側の抗土圧構造体24に用いられる鋼矢板は、既存の岸壁構造体2がその安定性が損なわれて崩れないようにするため、既存の岸壁構造体2から10〜20m程度離れた沖側の海底に打設されるのが望ましい。   The steel sheet pile used for the offshore anti-earthquake structure 24 of the quay structure 20 according to the present embodiment is to prevent the existing quay structure 2 from losing its stability and not to collapse. It is desirable to be placed on the offshore seabed about 10-20 m away from the existing quay structure 2.

岸壁構造体20の形成後には、沖側の抗土圧構造体24近傍の海底22を浚渫又は掘削して、その深さを増加することにより新たな海底32を形成して、大型船舶の係留施設としての機能を有する新たな岸壁構造体20を完成させることができるようになっている。   After the formation of the quayside structure 20, the seabed 22 near the offshore anti-earthquake structure 24 is dredged or excavated to increase its depth to form a new seabed 32 to moor large vessels. A new quay structure 20 having a function as a facility can be completed.

なお、本実施の形態においては抗土圧構造体24に鋼矢板を用いているが、他の実施の形態として、水深が深いような場合には鋼管矢板を用いるようにしてもよく、または、コンクリート製の矢板等の他の矢板を用いるようにしてもよく、或いは矢板以外の構造体を設置するようにしてもよい。   In this embodiment, a steel sheet pile is used for the anti-earth pressure structure 24. However, as another embodiment, a steel pipe sheet pile may be used when the water depth is deep, or Other sheet piles such as a concrete sheet pile may be used, or a structure other than the sheet pile may be installed.

図1の岸壁構造体20の固化処理土26は、海底を浚渫又は掘削した含水比が液性限界を超えるような軟弱な浚渫土砂又は掘削土砂に、セメント、石灰、酸化マグネシウム、或いは石こう等の固化材を混合して生成する。この生成された固化処理土26は海中でも固化することができ、固化することにより一軸圧縮強さで100〜400kN/m程度まで強度を向上させることができる。 The solidified soil 26 of the quay structure 20 in FIG. 1 is made of soft dredged sand or excavated soil whose water content exceeds the liquid limit by dredging or excavating the seabed, and cement, lime, magnesium oxide, gypsum, etc. Produced by mixing solidification material. The generated solidified soil 26 can be solidified even in the sea, and by solidifying, the strength can be improved to about 100 to 400 kN / m 2 in terms of uniaxial compression strength.

なお、後述する固化処理土26の堆積の作業を行ない易くするために、流動化剤、凝集剤、高分子ポリマーのような分離防止剤などの混和剤や添加剤を必要に応じて混合することにより、固化する前は流動性を有するように流動化処理したものであってもよい。   In order to facilitate the work of depositing the solidified soil 26 described later, admixtures and additives such as a fluidizing agent, a flocculant, and a separation inhibitor such as a polymer are mixed as necessary. Thus, it may be fluidized so as to have fluidity before solidification.

このような固化処理土26に用いる浚渫土砂又は掘削土砂としては、本実施の形態に係る岸壁構造体20を形成する前、またはその形成と同時期に、港湾内の海底を浚渫又は掘削した際に生じた浚渫土砂、又は掘削土砂を用いることができる。   As dredged soil or excavated sediment used for such solidified soil 26, when the seabed in the harbor is dredded or excavated before or at the same time as the formation of the quayside structure 20 according to the present embodiment. It is possible to use dredged soil or excavated sediment.

面状補強材28は、固化処理土26中に含まれるセメント等のアルカリ成分に対して耐蝕性が良く、可撓性(柔軟性)のあるポリエチレン材が用いられており、図2に示すように網目を有する平面状に形成されているため、固化処理土26中に埋設されたときに、固化処理土26が上記網目を通って互いに連結するので、面状補強材28もこの固化処理土26と構造上一体的に連結する。   The planar reinforcing material 28 is made of a polyethylene material having good corrosion resistance against alkali components such as cement contained in the solidified soil 26 and having flexibility (softness), as shown in FIG. Since the solidified soil 26 is connected to each other through the mesh when embedded in the solidified soil 26, the planar reinforcing material 28 is also connected to the solidified soil 26. 26 and the structure are integrally connected.

図2に示すように、面状補強材28はその長さ方向の端部28aが、棒部材34と連結部材36を介して抗土圧構造体24の鋼矢板に連結されている。すなわち、面状補強材28はその端部28aが、この面状補強材28の長さ方向と垂直方向に伸びる棒部材34に巻き付けられて連結部材36に固定されている。   As shown in FIG. 2, the end portion 28 a in the length direction of the planar reinforcing member 28 is connected to the steel sheet pile of the anti-earth pressure structure 24 via the bar member 34 and the connecting member 36. That is, the end portion 28 a of the planar reinforcing member 28 is wound around a bar member 34 extending in a direction perpendicular to the length direction of the planar reinforcing member 28 and fixed to the connecting member 36.

この棒部材34は、その長さが面状補強材28の幅よりも若干長くなっており、面状補強材28の端部28aは、この棒部材34の両端部34a,34bを除く、これらの間の中間部分34cに巻き付けられて固定されている。   The length of the bar member 34 is slightly longer than the width of the planar reinforcing member 28, and the end 28 a of the planar reinforcing member 28 excludes both ends 34 a and 34 b of the bar member 34. And is fixed by being wound around an intermediate portion 34c.

連結部材36は、角棒部材をほぼ「コ」の字型に曲げたような形状を有しており、この「コ」の字の横線に相当する部分はその長さが棒部材34の径とほぼ同じであって、「コ」の字の縦線に相当する部分の長さは、例えば棒部材の径の2倍位と、十分に長くなっている。   The connecting member 36 has a shape that is obtained by bending a square bar member into a substantially “U” shape. The length of the portion corresponding to the horizontal line of the “U” is the diameter of the bar member 34. The length of the portion corresponding to the vertical line of the “U” is sufficiently long, for example, about twice the diameter of the bar member.

そしてこの連結部材36は、その形状の「コ」の字の縦線に相当する部分が抗土圧構造体24の長さ方向と平行となるように、「コ」の字の上側と下側の両方の横線の先端が溶接等により上記鋼矢板の陸側に向く面に固定されている。また、面状補強材28の端部28aがその中間部分34cに固定された棒部材34の両端部34a,34bは、上記鋼矢板と「コ」の字状の連結部材36との間の長方形の空間を上下方向(長方形の長さ方向)に移動することができるように係合されている。   The connecting member 36 has an upper side and a lower side of the “U” shape so that portions corresponding to the vertical lines of the “U” shape of the connecting member 36 are parallel to the length direction of the anti-earth pressure structure 24. The ends of both horizontal lines are fixed to the surface facing the land side of the steel sheet pile by welding or the like. Further, both end portions 34a and 34b of the bar member 34 in which the end portion 28a of the planar reinforcing member 28 is fixed to the intermediate portion 34c are rectangular between the steel sheet pile and the "U" -shaped connecting member 36. Are engaged so as to be able to move in the vertical direction (length direction of the rectangle).

堆積させた固化処理土26が固化した後は、棒部材34は抗土圧構造体24と連結部材36との間の空間を上下方向に移動することはなく、また、抗土圧構造体24と連結部材36の形状の「コ」の字の縦線に相当する部分との間隔はこの棒部材34の径とほぼ同じであるため、抗土圧構造体24と面状補強材28との間に、面状補強材28の長さ方向の力が有効に伝達されるようになっている。   After the deposited solidified soil 26 is solidified, the bar member 34 does not move in the vertical direction in the space between the anti-earth pressure structure 24 and the connecting member 36, and the anti-earth pressure structure 24 Since the distance between the connecting member 36 and the portion corresponding to the vertical line of the “U” shape is substantially the same as the diameter of the bar member 34, the anti-earth pressure structure 24 and the planar reinforcing member 28 are separated from each other. In the meantime, the force in the length direction of the planar reinforcing member 28 is effectively transmitted.

したがって、岸壁構造体20に波力や地震等による水平方向の外力が作用した場合でも、固化処理土26に挟まれて一体化された面状補強材28の水平方向の張力が抗土圧構造体24に作用するので、抗土圧構造体24が変形等を生じて固化処理土26から容易に剥離することを防止することができるため、抗土圧構造体24と固化処理土26が面状補強材28を介して一体化し、強い安定した強度を発揮することができるようになっている。   Therefore, even when horizontal external force such as wave force or earthquake acts on the quay structure 20, the horizontal tension of the planar reinforcing member 28 sandwiched and integrated by the solidified soil 26 is the anti-earth pressure structure. Since it acts on the body 24, it can be prevented that the anti-earth pressure structure 24 is deformed and easily separated from the solidified soil 26. It is integrated through the shape reinforcing material 28 so that a strong and stable strength can be exhibited.

次に、本実施の形態に係る岸壁構造体20の形成方法について説明する。
まず、図4に示すように、既存の岸壁構造体2の近傍の海面S(海域)に、その岸壁構造体2を一辺とする、矩形状に囲まれた施工領域Eを設定する。なお施工領域Eの長さは50〜100m程度に設定され、その幅は10〜20m程度に設定されるが、これに限定されないことはいうまでもない。
Next, a method for forming the quay wall structure 20 according to the present embodiment will be described.
First, as shown in FIG. 4, a construction area E surrounded by a rectangular shape with the quay structure 2 as one side is set on the sea surface S (sea area) in the vicinity of the existing quay structure 2. In addition, although the length of the construction area | region E is set to about 50-100m and the width | variety is set to about 10-20m, it cannot be overemphasized that it is not limited to this.

このように設定された施工領域Eの、岸壁構造体2以外の周縁部a,b,c、及び施工領域E内の境界部d,e,fに、施工領域Eの内外の、或いは互に隣合う海域間を海面から海底にわたって隔離する抗土圧構造体24を設ける。特に沖側の抗土圧構造体24には、図3に示すように、予め連結部材36が溶接等により高さ方向に所定の間隔で固定されている鋼矢板を用い、連結部材36が固定されている面が陸側に向くように海底22に打設する。   In the construction area E set in this way, the peripheral parts a, b, c other than the quayside structure 2 and the boundary parts d, e, f in the construction area E, inside or outside the construction area E or mutually. An anti-earth pressure structure 24 that isolates adjacent sea areas from the sea surface to the sea floor is provided. In particular, as shown in FIG. 3, the offshore side earth pressure structure 24 uses steel sheet piles in which the connecting members 36 are fixed in advance in the height direction by welding or the like, and the connecting members 36 are fixed. It is placed on the seabed 22 so that the surface that is being directed is on the land side.

ここで、上記鋼矢板の高さ方向に互いに隣り合う連結部材36の所定の間隔は、堆積される固化処理土26の所定高さと同じ間隔にし、最も深い海底22に配置する面状補強材28との連結に用いる連結部材36は、その鋼矢板を打設したときにおいて海底22の位置とほぼ一致するような上下方向の位置にくるようにする。   Here, the predetermined interval between the connecting members 36 adjacent to each other in the height direction of the steel sheet pile is the same as the predetermined height of the solidified soil 26 to be deposited, and the planar reinforcing material 28 disposed on the deepest seabed 22. The connecting member 36 used for connecting to the bottom of the steel sheet pile is positioned in the vertical direction so as to substantially coincide with the position of the seabed 22 when the steel sheet pile is driven.

また、抗土圧構造体24の鋼矢板は、岸壁構造体2の安定性が損なわれて崩れることがないようにするため、既存の岸壁構造体2から10〜20m程度離れた沖側の海底22に打設するようにする。岸壁構造体2からそれより近い位置の海底22に鋼矢板を打設すると、岸壁構造体2がその周辺の地盤に対して円弧方向に滑りを生じて、岸壁構造体2が滑り破壊を起こすおそれがあるからである。   Further, the steel sheet pile of the anti-earth pressure structure 24 prevents the stability of the quay structure 2 from being damaged and collapses, so that the offshore seabed about 10 to 20 m away from the existing quay structure 2 is provided. 22 to be placed. If a steel sheet pile is placed on the seabed 22 at a position closer to the quay structure 2, the quay structure 2 may slide in the arc direction with respect to the surrounding ground, and the quay structure 2 may cause a sliding failure. Because there is.

次に、予め棒部材34にその端部28aを巻付けて固定した面状補強材28を施工領域Eの海底22上に広げて配置すると共に、その棒部材34の両端部34a,34bのそれぞれを、上記鋼矢板に設けられた、対応する連結部材36に係合させる。   Next, the planar reinforcing member 28 in which the end portion 28a is wound around and fixed to the bar member 34 in advance is arranged on the sea floor 22 in the construction area E, and both end portions 34a and 34b of the bar member 34 are arranged. Is engaged with a corresponding connecting member 36 provided on the steel sheet pile.

そして、この次に配置する面状補強材28の深さまで、施工領域Eに固化処理土26を堆積させて、この固化処理土26の下の、海底22上の面状補強材28を埋設する。固化処理土26の堆積方法は、供給用パイプを用いてポンプ又は空気により圧送する等の注入方法や、ベルトコンベヤ又はバケット等を用いた投入方法により行なうことができる。   Then, the solidified soil 26 is deposited in the construction region E to the depth of the planar reinforcing material 28 to be placed next, and the planar reinforcing material 28 on the seabed 22 under the solidified soil 26 is buried. . The method of depositing the solidified soil 26 can be performed by an injection method such as pumping using a supply pipe or by air, or a loading method using a belt conveyor or bucket.

所定の高さまで固化処理土26を堆積した後は、海底22上に面状補強材28を配置したときと同様に、棒部材34にその端部28aを固定した面状補強材28を固化処理土26の上面の上に配置すると共に、棒部材34の両端部34a,34bのそれぞれを、前記鋼矢板に設けられた、対応する連結部材36に係合させる。   After the solidified soil 26 is deposited to a predetermined height, the planar reinforcing material 28 having the end portion 28a fixed to the bar member 34 is solidified in the same manner as when the planar reinforcing material 28 is disposed on the seabed 22. While arrange | positioning on the upper surface of the soil 26, each of the both ends 34a and 34b of the bar member 34 is engaged with the corresponding connection member 36 provided in the said steel sheet pile.

ここで、面状補強材28は可撓性(柔軟性)を有しているので、固化処理土26の上面に多少のうねりがあっても、それに沿って密着して配置させることができる。   Here, since the planar reinforcing material 28 has flexibility (flexibility), even if there is a slight undulation on the upper surface of the solidified soil 26, it can be placed in close contact with it.

また、面状補強材28の端部28aが固定された棒部材34の両端部34a,34bのそれぞれは、抗土圧構造体24の鋼矢板と連結部材36の「コ」の字形状との間に形成される、長方形の空間を上下方向に移動することができるように係合しているので、固化処理土26の堆積高さが所定値から多少変化しても、このことが面状補強材28を前記鋼矢板に連結する際に支障となることはない。   Further, both end portions 34a and 34b of the bar member 34 to which the end portion 28a of the planar reinforcing member 28 is fixed are formed with the steel sheet pile of the anti-earth pressure structure 24 and the "U" shape of the connecting member 36, respectively. Since it is engaged so that it can move in the vertical direction in the rectangular space formed between them, even if the accumulated height of the solidified soil 26 changes slightly from a predetermined value, this is a planar shape. There is no hindrance when connecting the reinforcing member 28 to the steel sheet pile.

このような作業を、図1に示すように、面状補強材28が複数の層状に埋設されて、固化処理土26の最上面が海面Sより高くなるまで繰り返し行なうことにより、岸壁構造体20を形成することができる。   As shown in FIG. 1, the quay wall structure 20 is obtained by repeating such work until the planar reinforcing material 28 is embedded in a plurality of layers and the uppermost surface of the solidified soil 26 becomes higher than the sea level S. Can be formed.

そして、固化処理土26が固化してその強度が十分に発揮されるようになるまで養生させた後、抗土圧構造体24の沖側近傍の海底22を掘削し、その深さを増加することにより新たな海底32を形成することにより、岸壁構造体20は大型船舶の係留施設としての機能を有することができる。   Then, after the solidified soil 26 is solidified and cured until its strength is sufficiently exerted, the seabed 22 near the offshore side of the anti-earth pressure structure 24 is excavated to increase its depth. By forming the new seabed 32 by this, the quay structure 20 can have a function as a mooring facility of a large vessel.

このような本発明の第1の実施の形態に係る岸壁構造体20及びその形成方法によれば、抗土圧構造体24と固化処理土26が面状補強材28を介して一体化し、強い安定した強度を発揮することができるようになっているので、大型船舶の係留施設としての機能を維持することができるための十分な強度を有する岸壁構造体20を形成することができる。   According to the quay wall structure 20 and the method for forming the quay wall structure according to the first embodiment of the present invention, the anti-earth pressure structure 24 and the solidified soil 26 are integrated through the planar reinforcing material 28 and are strong. Since stable strength can be exhibited, the quay structure 20 having sufficient strength to maintain the function as a mooring facility for a large vessel can be formed.

また、このような岸壁構造体20は、図10に示す従来の岸壁構造体8のように大規模な埋立て工事を必要としないため、その従来の岸壁構造体8よりも安い費用で、かつ短かい工事期間で形成することができると共に、環境破壊をも防止することができる。   Moreover, since such a quay structure 20 does not require a large-scale land reclamation work unlike the conventional quay structure 8 shown in FIG. 10, it is cheaper than the conventional quay structure 8, and It can be formed in a short construction period and can also prevent environmental destruction.

またこのような岸壁構造体20によれば、図11に示す従来の複雑な構成でかつ高価な桟橋12が不要となると共に、その従来の桟橋12よりも安い費用で、かつ短かい工事期間で形成することができる。   Moreover, according to such a quay structure 20, the conventional complicated structure and the expensive pier 12 shown in FIG. 11 become unnecessary, and it is cheaper than the conventional pier 12, and in a short construction period. Can be formed.

また、港湾内の海底を浚渫又は掘削したことにより発生した土砂を大量に利用することができるので、有効利用できずに費用をかけて処分しなければならない浚渫又は掘削した土砂の量を減らすことができる。   In addition, because a large amount of sediment generated by dredging or excavating the seabed in the harbor can be used, the amount of dredged soil or excavated sediment that cannot be effectively used and must be disposed of at an expense is reduced. Can do.

さらに本実施の形態のような、固化処理土26により補強した岸壁構造体20のメリットとしては、以下のようなことが挙げられる。
(a) 構造が単純であり、経済的にも有利となる。
(b) 固化処理土は、せん断度が大きく軽量なため、鋼矢板(または鋼管矢板)に作用する土圧を低減できる。
(c) 固化処理土は、工事完了後バックホウにより掘削し構造物を埋設したり、くいを打設することも可能である。
(d) 固化処理土は、粘着力が大きいため、液状化対策が不要である。
(e) 面状補強材を固化処理土中に入れることで複合材としての性能を発揮し、曲げやせん断に対する抵抗性が増加すると共に、ひび割れの発生・拡大も抑制できる。
(f) 鋼矢板(または鋼管矢板)に連結された面状補強材は、その引張強度により鋼矢鉄に作用する土圧等の水平力を低減することができる。
(g) 岸壁構造全体の重量を低減できるため、地震時の慣性力も低減され、さらに、比較的柔軟な補強材や鋼矢鉄を用いることにより地震時のエネルギーを吸収する構造なので耐震性能が向上する。
Further, the merits of the quay wall structure 20 reinforced by the solidified soil 26 as in the present embodiment include the following.
(A) The structure is simple and it is economically advantageous.
(B) Since the solidified soil has a high shear rate and is light, earth pressure acting on the steel sheet pile (or steel pipe sheet pile) can be reduced.
(C) The solidified soil can be excavated by a backhoe after the completion of construction to embed the structure or piles can be placed.
(D) Since the solidified soil has high adhesive strength, no liquefaction measures are required.
(E) Placing the planar reinforcing material in the solidified soil exhibits performance as a composite material, increasing resistance to bending and shearing, and suppressing the occurrence and expansion of cracks.
(F) The planar reinforcing material connected to the steel sheet pile (or steel pipe sheet pile) can reduce horizontal force such as earth pressure acting on the steel sheet pile due to its tensile strength.
(G) Since the weight of the entire quay structure can be reduced, the inertial force during an earthquake is also reduced. Furthermore, the use of a relatively flexible reinforcement material and steel sheet iron absorbs energy during an earthquake, improving seismic performance. To do.

次に、図5及び図6に基づいて、本発明の第2の実施の形態に係る岸壁構造体50及びその形成方法について説明する。
図5に示す岸壁構造体50は、前記第1の実施の形態に係る岸壁構造体20と同様の部分には同じ符号を付して説明し、同様の構成又は形成方法についての重複する説明は省略するものとする。
Next, based on FIG.5 and FIG.6, the quay structure 50 which concerns on the 2nd Embodiment of this invention, and its formation method are demonstrated.
The quay structure 50 shown in FIG. 5 is described by attaching the same reference numerals to the same parts as the quay structure 20 according to the first embodiment, and there is no overlapping description of the same configuration or formation method. Shall be omitted.

本実施の形態に係る岸壁構造体50は、各層の面状補強部材28の各端部28aが、固化処理土26の深さに応じて交互に、沖側の抗土圧構造体24または既存の岸壁構造体2のケーソン4のいずれか一方に連結されるようになっている。抗土圧構造体24またはケーソン4のいずれか一方と、面状補強材28の端部28aとの連結は、前記第1の実施の形態に係る岸壁構造体20と同様に、棒部材34及び連結部材36を介した方法を用いることができる。   In the quayside structure 50 according to the present embodiment, each end portion 28a of the planar reinforcing member 28 of each layer is alternately turned off according to the depth of the solidified soil 26, or the anti-earth pressure structure 24 on the offshore side or existing. It is connected to either one of the caissons 4 of the quay structure 2. The connection between either the anti-earth pressure structure 24 or the caisson 4 and the end portion 28a of the planar reinforcing member 28 is similar to the bar member 34 and the quay wall structure 20 according to the first embodiment. A method through the connecting member 36 can be used.

このような実施の形態により、岸壁構造体50に波力や地震等による水平方向の外力が作用した場合には、前記第1の実施の形態と同様に、固化処理土26に挟まれて一体化された面状補強部材28を介して、沖側の抗土圧構造体24が変形により固化処理土26から剥離することを防止することができるだけでなく、固化処理土26と既存の岸壁構造体2が分離することをも防止することができるため、新たに形成した本実施の形態に係る岸壁構造体50と既存の岸壁構造体2を一体化させて、強い安定した強度を発揮することができるようになっている。   According to such an embodiment, when a horizontal external force such as a wave force or an earthquake acts on the quay structure 50, as in the first embodiment, it is sandwiched between the solidified soil 26 and integrated. In addition to preventing the anti-earth pressure structure 24 on the offshore side from being separated from the solidified soil 26 due to deformation, the solidified soil 26 and the existing quay wall structure can be prevented. Since the body 2 can be prevented from being separated, the newly formed quay structure 50 according to the present embodiment and the existing quay structure 2 are integrated to exhibit a strong and stable strength. Can be done.

次に、本実施の形態に係る岸壁構造体50を形成する方法について説明する。
まず、岸壁構造体50は、面状補強部材28の端部28aが1層おきに既存の岸壁構造体2のケーソン4に連結されるようになっているが、岸壁構造体2のケーソン4は岸壁構造体50の形成前において既に海中に存在するため、抗土圧構造体24のように打設するために海中に入れる前に、空気中で予め連結部材36を溶接で固定しておくようなことができない。
Next, a method for forming the quayside structure 50 according to the present embodiment will be described.
First, in the quay structure 50, the end portions 28a of the planar reinforcing member 28 are connected to the caisson 4 of the existing quay structure 2 every other layer, but the caisson 4 of the quay structure 2 is Since the quay wall structure 50 is already present in the sea before the formation, the connecting member 36 is fixed in advance in the air before being put into the sea to be placed like the anti-earth pressure structure 24. I can't do anything.

このため、岸壁構造体2のケーソン4には、固化処理土26の堆積や面状補強材28の端部28aの連結作業の開始前に、潜水士が海中においてケーソン4に連結部材36を取付ける作業を完了させておかなければならない。   For this reason, the diver attaches the connecting member 36 to the caisson 4 in the sea before the caisson 4 of the quay structure 2 starts deposition of the solidified soil 26 and connection work of the end portion 28a of the planar reinforcing material 28. The work must be completed.

ここで、岸壁構造体2はコンクリート製のケーソン4を用いていると共に、海中に存在するため、そのケーソン4に連結部材36を溶接で取り付けることができないので、連結部材36は固着剤等を用いて取り付けるようにする必要がある。   Here, since the quay structure 2 uses the concrete caisson 4 and exists in the sea, the connecting member 36 cannot be attached to the caisson 4 by welding. Therefore, the connecting member 36 uses an adhesive or the like. Need to be installed.

例えば、図6に示すように、連結部材36の「コ」の字型の形状における上側と下側の横線に相当する部分をそれぞれ長く形成すると共に、これらに対応する孔54を岸壁構造体2のケーソン4にドリル等により形成しておくようにする。そして、連結部材36の「コ」の字型の形状における上側と下側の横線に相当する部分を、それぞれ長くした分だけ岸壁構造体2のケーソン4の穴54に挿入して固着剤56により固着するようにする。   For example, as shown in FIG. 6, the portions corresponding to the upper and lower horizontal lines of the “U” -shaped shape of the connecting member 36 are formed long, and the corresponding holes 54 are formed in the quayside structure 2. The caisson 4 is formed with a drill or the like. Then, the portions corresponding to the upper and lower horizontal lines in the “U” -shaped shape of the connecting member 36 are respectively inserted into the holes 54 of the caisson 4 of the quayside structure 2 by the lengthened portions, and the fixing agent 56 is used. Try to stick.

このような潜水士が海中作業で用いることができる固着剤56としては、例えば、不飽和ポリエステル樹脂を主剤に使用し、硬化剤及び骨材と共にガラス管の中に収納したカプセル型固着剤(日本デコラックス(株)製のアンカー固着剤Rタイプ)等を利用することができる。   As the sticking agent 56 that can be used by such divers in underwater work, for example, an unsaturated polyester resin is used as a main agent, and a capsule-type sticking agent that is housed in a glass tube together with a hardener and an aggregate (Japan) An anchor sticking agent R type manufactured by Deco Lux) can be used.

このように、既存の岸壁構造体2のケーソン4に連結部材36を取り付けた後、前記第1の実施の形態と同様に、固化処理土26の堆積と、面状補強材28の配置及びその端部28aの連結作業を交互に繰り返し行なうことにより、岸壁構造体50を形成することができる。   As described above, after attaching the connecting member 36 to the caisson 4 of the existing quayside structure 2, as in the first embodiment, the solidification soil 26 is deposited, the arrangement of the planar reinforcing material 28 and its The quay structure 50 can be formed by alternately repeating the connecting operation of the end portions 28a.

ここで、面状補強材28の端部28aと沖側の抗土圧構造体24、または岸壁構造体2のケーソン4との連結は、固化処理土26の深さに応じて交互に行なうようにする。また、固化処理土26が固化してその強度が十分に発揮されるようになるまで養生させた後、抗土圧構造体24の沖側近傍の海底22を掘削してその深さを増加することにより、新たな海底32を形成することができることは、前記第1の実施の形態と同様である。   Here, the end portion 28a of the planar reinforcing material 28 and the anti-earth pressure structure 24 on the offshore side or the caisson 4 of the quay structure 2 are alternately connected according to the depth of the solidified soil 26. To. Further, after the solidified soil 26 is solidified and cured until its strength is sufficiently exerted, the depth of the seabed 22 near the offshore side of the anti-earth pressure structure 24 is excavated to increase its depth. Thus, it is possible to form a new seabed 32 as in the first embodiment.

このような本発明の第2の実施の形態に係る岸壁構造体50及びその形成方法によれば、前記第1の実施の形態と同様に、大型船舶の係留施設としての機能を維持することができるための十分な強度を有する岸壁構造体50を形成することができる。   According to the quay structure 50 and the method for forming the same according to the second embodiment of the present invention, it is possible to maintain the function as a mooring facility for a large vessel, as in the first embodiment. The quay structure 50 having sufficient strength to be able to be formed can be formed.

また、このような岸壁構造体50は、図10に示す従来の岸壁構造体8のように大規模な埋立て工事を必要としないため、その従来の岸壁構造体8よりも安い費用で、かつ短かい工事期間で形成することができると共に、環境破壊をも防止することができる。   Moreover, since such a quay structure 50 does not require a large-scale landfill work unlike the conventional quay structure 8 shown in FIG. 10, it is cheaper than the conventional quay structure 8, and It can be formed in a short construction period and can also prevent environmental destruction.

またこのような岸壁構造体50によれば、図11に示す従来の複雑な構成でかつ高価な桟橋12が不要となると共に、その従来の桟橋12よりも安い費用で、かつ短かい工事期間で形成することができる。   Moreover, according to such a quay structure 50, the conventional complicated structure and expensive pier 12 shown in FIG. 11 become unnecessary, and it is cheaper than the conventional pier 12 and in a short construction period. Can be formed.

また、前記第1の実施の形態と同様に、港湾内の海底を浚渫又は掘削したことにより発生した土砂を大量に利用することができるので、有効利用できずに費用をかけて処分しなければならない浚渫又は掘削した土砂の量を減らすことができる。   In addition, as in the first embodiment, since a large amount of earth and sand generated by dredging or excavating the seabed in the harbor can be used, it cannot be effectively used and must be disposed of at an expense. The amount of dredging or excavated sediment can be reduced.

ところで、前記第1及び第2の実施の形態において、固化処理土26の製造には、港湾内を浚渫又は掘削した際に生じた浚渫土砂又は掘削土砂を用いるようにしているが、この浚渫土砂又は掘削土砂が粒径0.075mm以下の細粒を50%以上含有する粘性土である場合には、空気圧送のプラグ流を利用した管中混合方式、または混練ミキサによる機械混合方式により水及び固化材を混合し、必要に応じて混和剤や添加剤を混合することができる。   By the way, in the first and second embodiments, the solidified soil 26 is manufactured using dredged soil or excavated sediment generated when dredging or excavating the inside of the harbor. Alternatively, when the excavated soil is a viscous soil containing 50% or more of fine particles having a particle size of 0.075 mm or less, water and water are mixed by a mixing method in a pipe using a pneumatic plug flow or a mechanical mixing method using a kneading mixer. The solidifying material can be mixed, and admixtures and additives can be mixed as necessary.

また、浚渫土砂又は掘削土砂が粒径0.075mm以上2mm未満の砂を80%以上含有する砂質土であって、その含水率が15%以下のときにはベルトコンベヤ上で、含水率が15%以上のときには混練ミキサによる機械混合方式により固化材を混合し、必要に応じて混和剤や添加剤を混合することができる。   The dredged soil or excavated soil is sandy soil containing 80% or more of sand having a particle size of 0.075 mm or more and less than 2 mm, and when the moisture content is 15% or less, the moisture content is 15% on the belt conveyor. At the above time, the solidification material can be mixed by a mechanical mixing method using a kneading mixer, and admixtures and additives can be mixed as necessary.

次に、図7及び図8に基づいて本発明の第3の実施の形態について説明する。   Next, a third embodiment of the present invention will be described with reference to FIGS.

前記実施の形態においては、図2に示すように、抗土圧構造体24にコの字型の連結部材36を固定して、この連結部材36の内側に面状補強材28を固定した棒部材34の端部を係合していたのに対し、この第3の実施の形態においては、図7に示すように抗土圧構造体24に、上下方向に連続して延びる一対のガイド部材62a,62bに、可動部材64を摺動自在に嵌合し、この可動部材64に形成されている長孔64aに、面状補強材28の端部を固定した棒部材34の両端部34a,34bを係合させて構成したものである。   In the embodiment, as shown in FIG. 2, a bar having a U-shaped connecting member 36 fixed to the anti-earth pressure structure 24 and a planar reinforcing member 28 fixed to the inside of the connecting member 36. Whereas the end portion of the member 34 is engaged, in the third embodiment, as shown in FIG. 7, a pair of guide members that extend continuously in the vertical direction in the anti-earth pressure structure 24. 62a and 62b are slidably fitted with a movable member 64, and both end portions 34a and 34a of the rod member 34 are fixed to the elongated holes 64a formed in the movable member 64. 34b is engaged.

すなわち、図8に示すように、抗土圧構造体24に一対のガイド部材62a,62bを上下方向に連続するように固定し、この一対のガイド部材62a,62b間に形成された、溝により外部と連通する部屋62c内に、断面がT字状の可動部材64の頭部64bが嵌合し、部屋62cから外部に突出する、可動部材64の突出部64cに形成された長孔64aに棒部材34の両端部34a,34bを係合するようにしたものである。   That is, as shown in FIG. 8, a pair of guide members 62a and 62b are fixed to the anti-earth pressure structure 24 so as to be continuous in the vertical direction, and a groove formed between the pair of guide members 62a and 62b is used. A head portion 64b of a movable member 64 having a T-shaped cross section is fitted in a chamber 62c communicating with the outside, and a long hole 64a formed in the projecting portion 64c of the movable member 64 projects outward from the chamber 62c. Both end portions 34a and 34b of the bar member 34 are engaged.

このような本発明の第3の実施の形態によれば、可動部材64は上下方向に自由に移動することができ、どこの位置にも停止させて配置させることができるので、前記実施の形態よりも面状補強材28の高さを決めるときの自由度を向上させることができる。   According to the third embodiment of the present invention, the movable member 64 can freely move in the vertical direction, and can be stopped and arranged at any position. The degree of freedom when determining the height of the planar reinforcing material 28 can be improved.

なお、前記第1の実施の形態においては、既存の岸壁構造体2の沖側に本発明に係る岸壁構造体20を形成する場合について説明したが、既存の岸壁構造体2が無い単なる海岸の場所に新たに岸壁構造体を形成するような場合にも、本発明は適用することができる。   In the first embodiment, the case where the quay structure 20 according to the present invention is formed on the offshore side of the existing quay structure 2 has been described. The present invention can also be applied when a quay structure is newly formed at a place.

また、前記第1及び第2の実施の形態による岸壁構造体20,50及びその形成方法は、既存の岸壁構造体2の沖側に新たに、大型船舶を係留できる水深の深い岸壁構造体20,50を形成するような場合だけでなく、地震等により既存の岸壁構造体2が傾斜または破損して利用することができなくなった場合に、その沖側に新たな岸壁構造体20,50を迅速に形成する必要があるような場合にも、本発明は適用することができる。   In addition, the quay structures 20 and 50 according to the first and second embodiments and the method of forming the quay structures 20 and 50 have a deep water quay structure 20 capable of mooring a large ship newly on the offshore side of the existing quay structure 2. , 50, and when the existing quay structure 2 cannot be used due to an inclination or damage due to an earthquake or the like, a new quay structure 20, 50 is installed on the offshore side. The present invention can also be applied to cases where rapid formation is required.

また、前記第1の実施の形態においては、すべての面状補強材28の端部28aを沖側の抗土圧構造体24に連結するようにしたが、一部の面状補強材28の端部28aだけを沖側の抗土圧構造体24に連結するようにしてもよい。   Further, in the first embodiment, the end portions 28a of all the planar reinforcing members 28 are connected to the offshore anti-earth pressure structure 24. Only the end portion 28 a may be connected to the offshore anti-earth pressure structure 24.

また、前記第2の実施の形態においては、各層の面状補強部材28の端部28aが交互に、沖側の抗土圧構造体24または既存の岸壁構造体2のケーソン4のいずれか一方に連結されるようになっていたが、すべての面状補強部材28の端部28aが既存の岸壁構造体2のケーソン4のみに連結するようにしてもよい。   Further, in the second embodiment, the end portions 28a of the planar reinforcing members 28 of each layer are alternately arranged either one of the anti-earth pressure structure 24 on the offshore side or the caisson 4 of the existing quay structure 2. However, the end portions 28 a of all the planar reinforcing members 28 may be connected only to the caisson 4 of the existing quay wall structure 2.

或いは、すべての面状補強部材28の両端部28a、又は一部の面状補強部材28の両端部28aが、沖側の抗土圧構造体24及び岸壁構造体2のケーソン4の両方に連結するようになっていてもよい。   Alternatively, both end portions 28a of all the planar reinforcing members 28, or both end portions 28a of some of the planar reinforcing members 28 are connected to both the offshore anti-earthquake structure 24 and the caisson 4 of the quay structure 2. You may come to do.

また、前記第1及び第2の実施の形態において、面状補強材28は、ポリエチレン材を網目を有する平面状に形成したものを用いたが、金属や他の合成樹脂材のように引張強度及び可撓性の両方を備える素材により、網目を有する平面状、または網目を有しないシート状に形成したものを用いるようにしてもよい。   In the first and second embodiments, the planar reinforcing member 28 is a polyethylene material formed in a planar shape having a mesh, but has a tensile strength like a metal or other synthetic resin material. In addition, a material having both flexibility and flexibility may be used which is formed into a planar shape having a mesh or a sheet having no mesh.

例えば、面状補強材28として金網を用いるようにしてもよい。また、ポリアミド、ポリエステル、ポリアクリルニトリル、ポリビニルアルコール、ポリ塩化ビニル、ポリ塩化ビニリデン、ポリプロピレン及びポリスチレン等の熱可塑性樹脂を用いれば、耐蝕性が良好になる。   For example, a wire mesh may be used as the planar reinforcing material 28. In addition, if a thermoplastic resin such as polyamide, polyester, polyacrylonitrile, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polypropylene, or polystyrene is used, the corrosion resistance is improved.

また、面状補強材28をこれらの材料により網目を有する平面状に形成すれば、固化した後の固化処理土26との一体性が向上すると共に、潮のみちひきによって影響を受ける固化処理土26内の水分の上下方向の移動が良好になる。   In addition, if the planar reinforcing material 28 is formed into a planar shape having a mesh with these materials, the integrity with the solidified soil 26 after solidification is improved, and the solidified soil that is affected by the tide is pulled. The movement of moisture in the vertical direction is improved.

このような合成樹脂材を網目を有する平面状に形成した面状補強材28としては、図示しないが、延伸されたフィラメント又はテープ等を交叉させて融着、結束又は編織したもの、或いは、網目の交叉部が網目部と一体的に延伸されて交叉部自体が延伸方向に配向しているもの等を用いることができる。網目の大きさは特に制限はないが、この面状補強材28を挟む上下の固化処理土の層が互いに接触して一体化できる程度のものが好ましい。   As the planar reinforcing material 28 in which such a synthetic resin material is formed in a planar shape having a mesh, although not shown, a stretched filament, a tape or the like is crossed and fused, bound or knitted, or a mesh In this case, the crossing portion of the crossing portion is integrally stretched with the mesh portion, and the crossing portion itself is oriented in the stretching direction. The size of the mesh is not particularly limited, but is preferably such that the upper and lower solidified soil layers sandwiching the planar reinforcing material 28 can be brought into contact with each other and integrated.

また、前記第1ないし第3の実施の形態においては、面状補強材28の端部28aと沖側の抗土圧構造体24または既存の岸壁構造体2のケーソン4との連結に、棒部材34及びコの字型の連結部材36、或は図7に示すようなガイド部材62a,62b及び可動部材64を用いるようにしたが、上記連結の方法はこのようなものに限る必要はなく、その他のどのような方法を用いてもよい。   Further, in the first to third embodiments, the rod 28 is connected to the end portion 28a of the planar reinforcing member 28 and the caisson 4 of the offshore anti-earthquake structure 24 or the existing quay structure 2. Although the member 34 and the U-shaped connecting member 36, or the guide members 62a and 62b and the movable member 64 as shown in FIG. 7 are used, the connecting method is not limited to this. Any other method may be used.

例えば、図示しないが、抗土圧構造体24又は既存の岸壁構造体2のケーソン4に取り付けられたコの字型の連結部材36に、ループジョイントベルト、連結治具、接続用布をロープ、ホックリンガー、ボルト等を用いて、面状補強材28の端部28aを連結するようにしてもよい。   For example, although not shown, a loop joint belt, a connecting jig, and a connecting cloth are roped to the U-shaped connecting member 36 attached to the caisson 4 of the anti-earth pressure structure 24 or the existing quay structure 2 You may make it connect the edge part 28a of the planar reinforcement 28 using a hook ringer, a volt | bolt, etc. FIG.

また、前記第1及び第2の実施の形態で用いた棒部材34を用いる他の実施の形態として、面状補強材28を棒部材に巻き付けて固定する代わりに、図9に示すように、面状補強材28をこの棒部材34を包むように折り返してから重ね合わせ、重ねられた面状補強材28の2層のうちの一方の層の網目から他方の層の網を反対側に1列だけ突出させて、その網目内に棒部材34とは異なる他の小径の棒部材58を通すことにより固定するようにしてもよい。   Further, as another embodiment using the bar member 34 used in the first and second embodiments, instead of winding and fixing the planar reinforcing member 28 around the bar member, as shown in FIG. The planar reinforcing member 28 is folded so as to wrap around the bar member 34 and then overlapped, and one layer of the two layers of the laminated planar reinforcing member 28 is arranged in a row from the mesh of the other layer to the opposite side. It may be made to protrude only by passing the other small-diameter bar member 58 different from the bar member 34 into the mesh.

本発明の第1の実施の形態に係る岸壁構造体20を示す側面断面図である。It is side surface sectional drawing which shows the quay structure 20 which concerns on the 1st Embodiment of this invention. 図1に示す棒部材34、連結部材36及び面状補強材28の拡大斜視図である。FIG. 3 is an enlarged perspective view of a bar member 34, a connecting member 36, and a planar reinforcing member 28 shown in FIG. 図1に示す岸壁構造体20の形成方法を説明するための側面断面図である。It is side surface sectional drawing for demonstrating the formation method of the quay wall structure 20 shown in FIG. 図1に示す岸壁構造体20の形成前に既存の岸壁構造体2の近傍の海域に設定される施工領域Eを示す平面図である。It is a top view which shows the construction area | region E set to the sea area of the vicinity of the existing quay structure 2 before formation of the quay structure 20 shown in FIG. 本発明の第2の実施の形態に係る岸壁構造体50を示す側面断面図である。It is side surface sectional drawing which shows the quay wall structure 50 which concerns on the 2nd Embodiment of this invention. 図5に示す既存の岸壁構造体2のケーソン4に固着する連結部材36を示すケーソン4の部分断面図である。It is a fragmentary sectional view of the caisson 4 which shows the connection member 36 adhering to the caisson 4 of the existing quay wall structure 2 shown in FIG. 本発明の第3の実施の形態に係る岸壁構造体の要部を示す斜視図である。It is a perspective view which shows the principal part of the quay structure concerning the 3rd Embodiment of this invention. 図7における岸壁構造体の要部のA-A線断面図である。It is the sectional view on the AA line of the principal part of the quay structure in FIG. 面状補強材28を棒部材34へ固定するための他の実施の形態を示す拡大側面図である。It is an enlarged side view which shows other embodiment for fixing the planar reinforcement 28 to the bar member 34. FIG. 従来の方法により形成した岸壁構造体8を示す側面断面図である。It is side surface sectional drawing which shows the quay structure 8 formed by the conventional method. 従来の他の方法により形成した桟橋12を示す側面断面図である。It is side surface sectional drawing which shows the jetty 12 formed by the other conventional method.

符号の説明Explanation of symbols

2 岸壁構造体
4 ケーソン
6 基礎捨石
8 岸壁構造体
10 鋼管杭
11 鉄筋コンクリート床板
12 桟橋
14 ケーソン
20 岸壁構造体
22 海底
24 抗土圧構造体
26 固化処理土
28 面状補強材
28a 端部
32 新たな海底
34 棒部材
34a,34b 端部
34c 中間部分
36 連結部材
50 岸壁構造体
54 穴
56 固着剤
58 棒部材
62a,62b ガイド部材
62c 部屋
64 可動部材
64a 長孔
64b 頭部
64c 突出部
E 施工領域
S 海面
a,b,c 周縁部
d,e,f 境界部
2 Quay Structure 4 Caisson 6 Foundation Rubble 8 Quay Structure 10 Steel Pipe Pile 11 Reinforced Concrete Floor 12 Pier 14 Caisson 20 Quay Structure 22 Seabed 24 Anti-Soil Pressure Structure 26 Solidification Soil 28 Planar Reinforcement 28a End 32 New Submarine 34 Bar member 34a, 34b End 34c Intermediate part 36 Connecting member 50 Quay structure 54 Hole 56 Fixing agent 58 Bar member 62a, 62b Guide member 62c Room 64 Movable member 64a Long hole 64b Head 64c Protrusion E Construction area S Sea surface a, b, c Peripheral part d, e, f Boundary part

Claims (10)

海岸線近傍の海域を海岸線と共に囲んだ施工領域の海岸線以外の周縁部に設けられて前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体と、
前記施工領域に下方から上方に所定高さずつ順次堆積される固化処理土と、
前記固化処理土中に所定高さずつ間隔をおいてほぼ水平方向に平面状に配置される複数の面状補強材とを備え、
前記複数の面状補強材の全部又は一部の各端部が沖側の前記抗土圧構造体に連結されることを特徴とする岸壁構造体。
An anti-earthquake structure that is provided in a peripheral area other than the coastline of the construction area that surrounds the sea area in the vicinity of the coastline with the coastline and isolates the seawater inside and outside the construction area from the sea surface to the seabed;
Solidified soil that is sequentially deposited at a predetermined height from below to above in the construction area;
A plurality of planar reinforcing materials arranged in a plane in a substantially horizontal direction at intervals of a predetermined height in the solidified soil,
A quay wall structure characterized in that all or a part of each of the plurality of planar reinforcing members are connected to the anti-earth pressure structure on the offshore side.
既設岸壁構造体の近傍の海域を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に設けられて前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体と、
前記施工領域に下方から上方に所定高さずつ順次堆積される固化処理土と、
前記固化処理土中に所定高さずつ間隔をおいてほぼ水平方向に平面状に配置される複数の面状補強材とを備え、
前記複数の面状補強材の全部又は一部の各端部が沖側の前記抗土圧構造体または前記既設岸壁構造体のいずれか一方に一律に連結されることを特徴とする岸壁構造体。
An anti-earthquake pressure structure that is provided at the periphery of the construction area other than the existing quay structure in the construction area that surrounds the sea area in the vicinity of the existing quay structure with the existing quay structure and isolates the sea water inside and outside the construction area from the sea surface to the seabed Body,
Solidified soil that is sequentially deposited at a predetermined height from below to above in the construction area;
A plurality of planar reinforcing materials arranged in a plane in a substantially horizontal direction at intervals of a predetermined height in the solidified soil,
A quayside structure characterized in that all or a part of each of the plurality of planar reinforcing members is uniformly connected to either the anti-earthquake structure on the offshore side or the existing quayside structure. .
既設岸壁構造体の近傍の海域を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に設けられて前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体と、
前記施工領域に下方から上方に所定高さずつ順次堆積される固化処理土と、
前記固化処理土中に所定高さずつ間隔をおいてほぼ水平方向に平面状に配置される複数の面状補強材とを備え、
前記複数の面状補強材の全部又は一部の各端部が沖側の前記抗土圧構造体及び前記既設岸壁構造体のいずれか一方に深さに応じて交互に連結されるようにしたことを特徴とする岸壁構造体。
An anti-earthquake pressure structure that is provided at the peripheral edge other than the existing quay wall structure in the construction area that surrounds the sea area in the vicinity of the existing quay structure together with the existing quay wall structure, and isolates the sea water inside and outside the construction area from the sea surface to the sea floor Body,
Solidified soil that is sequentially deposited at a predetermined height from below to above in the construction area;
A plurality of planar reinforcing materials arranged in a plane in a substantially horizontal direction at intervals of a predetermined height in the solidified soil,
All or a part of each of the plurality of planar reinforcing materials is alternately connected to either one of the anti-earthquake structure on the offshore side and the existing quay wall structure according to the depth. A quay structure characterized by that.
前記抗土圧構造体が、鋼矢板、鋼管矢板又はコンクリート製矢板、所定の構造体等により構成されるような請求項1ないし請求項3のいずれかに記載の岸壁構造体。 The quay wall structure according to any one of claims 1 to 3, wherein the anti-earth pressure structure is constituted by a steel sheet pile, a steel pipe sheet pile or a concrete sheet pile, a predetermined structure, and the like. 前記固化処理土は、浚渫土砂又は掘削土砂に、セメント、石灰、酸化マグネシウム、或いは石こう等の固化材を混合して、固化する前は粘性を有し、海中でも時間の経過と共に固化することができるような請求項1ないし請求項3のいずれかに記載の岸壁構造体。 The solidified soil is mixed with dredged soil or excavated soil and solidified material such as cement, lime, magnesium oxide, or gypsum, has a viscosity before solidification, and can solidify over time in the sea. The quay structure according to any one of claims 1 to 3, which can be made. 前記面状補強材が、可撓性を有し、網目を有する平面状又は網目を有しないシート状に形成されるような請求項1ないし請求項3のいずれかに記載の岸壁構造体。 The quay wall structure according to any one of claims 1 to 3, wherein the planar reinforcing material is formed in a flat shape having flexibility and a mesh or a sheet having no mesh. 沖側の前記抗土圧構造体近傍の海底を掘削してこの海底深さを増加させるようにした請求項1ないし請求項3のいずれかに記載の岸壁構造体。 The quay wall structure according to any one of claims 1 to 3, wherein the sea bottom in the vicinity of the anti-earthquake structure on the offshore side is excavated to increase the depth of the sea bottom. 海岸線近傍の海域を海岸線と共に囲んだ施工領域の海岸線以外の周縁部に前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体を設ける工程の後に、
前記施工領域に下方から上方に所定高さずつ順次固化処理土を堆積させる工程と、
前記堆積させた固化処理土の上に配置した面状補強材の全部又は一部の各端部を沖側の前記抗土圧構造体に連結する工程とを交互に繰り返して
形成することを特徴とする岸壁構造体の形成方法。
After the step of providing an anti-earthquake structure that isolates the seawater inside and outside the construction area from the sea surface to the sea floor at the periphery other than the coastline of the construction area that surrounds the sea area near the coastline with the coastline,
A step of sequentially depositing solidified soil in a predetermined height from below to above in the construction area;
The step of connecting all or a part of each end of the planar reinforcing material disposed on the solidified soil thus deposited to the anti-earth pressure structure on the offshore side is repeatedly formed. A method for forming a quay structure.
既設岸壁構造体の近傍の海面を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体を設ける工程の後に、
前記施工領域に下方から上方に所定高さずつ順次固化処理土を堆積させる工程と、
前記堆積させた固化処理土の上に配置した面状補強材の全部又は一部の各端部を沖側の前記抗土圧構造体または前記既設岸壁構造体に一律に連結する工程とを交互に繰り返して
形成することを特徴とする岸壁構造体の形成方法。
An anti-soil pressure structure that isolates the sea water inside and outside the construction area from the sea surface to the sea floor is provided at the peripheral edge other than the existing quay structure in the construction area that surrounds the sea surface in the vicinity of the existing quay structure with the existing quay structure. After the process
A step of sequentially depositing solidified soil in a predetermined height from below to above in the construction area;
Steps of uniformly connecting all or part of the ends of the planar reinforcing material disposed on the solidified soil thus deposited to the anti-earth pressure structure on the offshore side or the existing quay wall structure alternately A method of forming a quay structure, characterized by being repeatedly formed.
既設岸壁構造体の近傍の海面を既設岸壁構造体と共に囲んだ施工領域の既設岸壁構造体以外の周縁部に前記施工領域の内外の海水間を海面から海底にわたって隔離する抗土圧構造体を設ける工程の後に、
前記施工領域に下方から上方に所定高さずつ順次固化処理土を堆積させる工程と、
前記堆積させた固化処理土の上に配置した面状補強材の全部又は一部の各端部を沖側の前記抗土圧構造体及び前記既設岸壁構造体のいずれか一方に交互に連結する工程とを交互に繰り返して
形成することを特徴とする岸壁構造体の形成方法。
An anti-soil pressure structure that isolates the sea water inside and outside the construction area from the sea surface to the sea floor is provided at the peripheral edge other than the existing quay structure in the construction area that surrounds the sea surface in the vicinity of the existing quay structure with the existing quay structure. After the process
A step of sequentially depositing solidified soil in a predetermined height from below to above in the construction area;
Ends of all or part of the planar reinforcing material arranged on the solidified soil thus deposited are alternately connected to either the anti-earth pressure structure on the offshore side or the existing quay wall structure. A method for forming a quay structure, characterized in that the steps are alternately formed.
JP2003423111A 2003-12-19 2003-12-19 Quay structure and method for forming the same Expired - Lifetime JP4551985B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003423111A JP4551985B2 (en) 2003-12-19 2003-12-19 Quay structure and method for forming the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003423111A JP4551985B2 (en) 2003-12-19 2003-12-19 Quay structure and method for forming the same

Publications (2)

Publication Number Publication Date
JP2005180041A true JP2005180041A (en) 2005-07-07
JP4551985B2 JP4551985B2 (en) 2010-09-29

Family

ID=34783750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003423111A Expired - Lifetime JP4551985B2 (en) 2003-12-19 2003-12-19 Quay structure and method for forming the same

Country Status (1)

Country Link
JP (1) JP4551985B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007032003A (en) * 2005-07-25 2007-02-08 Mirai Kensetsu Kogyo Kk Wall structure and method of constructing the same
JP2007056663A (en) * 2005-07-29 2007-03-08 Sumitomo Metal Ind Ltd Steel wall body for composite structure
JP2011214248A (en) * 2010-03-31 2011-10-27 Sumitomo Metal Ind Ltd Structure for reinforcing embankment
JP2014080787A (en) * 2012-10-16 2014-05-08 Mirai Construction Co Ltd Construction of quay wall
JP2018111956A (en) * 2017-01-10 2018-07-19 五洋建設株式会社 Reinforcing laying member connecting structure of reinforcing earth wall type structure and reinforcing laying member laying method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122243A (en) * 1974-08-19 1976-02-21 Nippon Kokan Kk Ganpekino hokyokoho
JPS56135608A (en) * 1980-03-24 1981-10-23 Kawasaki Steel Corp Method for mitigating destructive shearing forge exerting on double walled structure
JPH11269842A (en) * 1998-03-26 1999-10-05 Nkk Corp Marine earth wall structure
JPH11323872A (en) * 1998-05-14 1999-11-26 Toyo Constr Co Ltd Remodeling method of sheet pile type quay

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122243A (en) * 1974-08-19 1976-02-21 Nippon Kokan Kk Ganpekino hokyokoho
JPS56135608A (en) * 1980-03-24 1981-10-23 Kawasaki Steel Corp Method for mitigating destructive shearing forge exerting on double walled structure
JPH11269842A (en) * 1998-03-26 1999-10-05 Nkk Corp Marine earth wall structure
JPH11323872A (en) * 1998-05-14 1999-11-26 Toyo Constr Co Ltd Remodeling method of sheet pile type quay

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007032003A (en) * 2005-07-25 2007-02-08 Mirai Kensetsu Kogyo Kk Wall structure and method of constructing the same
JP2007056663A (en) * 2005-07-29 2007-03-08 Sumitomo Metal Ind Ltd Steel wall body for composite structure
JP4569525B2 (en) * 2005-07-29 2010-10-27 住友金属工業株式会社 Steel wall for composite structure
JP2011214248A (en) * 2010-03-31 2011-10-27 Sumitomo Metal Ind Ltd Structure for reinforcing embankment
JP2014080787A (en) * 2012-10-16 2014-05-08 Mirai Construction Co Ltd Construction of quay wall
JP2018111956A (en) * 2017-01-10 2018-07-19 五洋建設株式会社 Reinforcing laying member connecting structure of reinforcing earth wall type structure and reinforcing laying member laying method

Also Published As

Publication number Publication date
JP4551985B2 (en) 2010-09-29

Similar Documents

Publication Publication Date Title
CN107075824A (en) Sea bed terminal for offshore activity
JP5136589B2 (en) Reinforcement beam and reinforcement method for underwater structure
JP4569525B2 (en) Steel wall for composite structure
JP4551985B2 (en) Quay structure and method for forming the same
JP4131447B2 (en) Wall structure and method for forming the same
KR200387407Y1 (en) Marine civil granular structure reinforced with floating geo-mat contained granulars on bottom and slopes of structure and floating geo-mat
KR100617898B1 (en) an anchor block for a silt protector
JP2010180684A (en) Pier of three-dimensional rigid frame structure and construction method
JP2003278137A (en) Floating body type gate device
JP4109431B2 (en) Aquatic structure with water play room
CN204875664U (en) A retaining wall structure for interim pier in bay
KR20190049284A (en) Concrete Caisson and Constructing Method thereof
US10214870B2 (en) Buoyancy compensated erosion control module
KR102138839B1 (en) Cast-in-place concrete blocks using large scales and revetment methods using them
JP4115922B2 (en) Civil engineering structure forming bag and civil engineering structure using this civil engineering structure forming bag
JP2904386B2 (en) Sinker embedding method and sinker
KR0130745B1 (en) Construction method of port district structure at the poor subsoil
JPH09296427A (en) Structure in water area and construction method thereof
KR101076753B1 (en) Eco-friendly vessel mooring structure
RU145661U1 (en) Sheet piling
KR101961655B1 (en) Quay wall and construction method using driven pile and box type pre-cast concrete structure
RU2226586C2 (en) Anti-erosion bed revetment and building method thereof
JP2017201094A (en) Movement prevention body of scour-prevention material and laying method of scour-prevention material
JPH11152735A (en) Modifying method for soft ground surface layer
JP4436150B2 (en) Construction method of artificial tidal flat and artificial shallow field

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051129

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080201

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080304

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080425

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081125

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100326

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100420

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130723

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4551985

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130723

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130723

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313115

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313115

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term