JPH04128426A - Method for constructing submarine caisson - Google Patents
Method for constructing submarine caissonInfo
- Publication number
- JPH04128426A JPH04128426A JP2248306A JP24830690A JPH04128426A JP H04128426 A JPH04128426 A JP H04128426A JP 2248306 A JP2248306 A JP 2248306A JP 24830690 A JP24830690 A JP 24830690A JP H04128426 A JPH04128426 A JP H04128426A
- Authority
- JP
- Japan
- Prior art keywords
- caisson
- concrete
- wall
- plate
- space
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title description 2
- 239000004567 concrete Substances 0.000 claims abstract description 67
- 238000009415 formwork Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Landscapes
- Underground Or Underwater Handling Of Building Materials (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
本発明は、海底にケーソンを構築するための工法に関す
るものである。The present invention relates to a construction method for constructing a caisson on the seabed.
昨今、海底トンネルなどの長距離に亘る管状の構造物を
海底に通す場合においては、海底上に複数個の鉄筋コン
クリート造のケーソンを沈めて並設し、これらを連結す
る手法が採られるようになってきている。そして前記ケ
ーソンは設置個所に近い沿岸で順次構築したのち、これ
を船で海上へ運搬して沈める手法が取られている。In recent years, when passing long-distance tubular structures such as submarine tunnels through the seabed, a method has been adopted in which multiple reinforced concrete caissons are sunk and installed side by side on the seabed and then connected. It's coming. The caissons are constructed one after another on the coast near the installation location, and then transported by boat to the sea and sunk.
しかしながら、上記したケーソンは一台あたりの重量が
非常に大きく、ケーソンの揚上作業や海上運搬作業など
に多大な労力が必要となっていた。
そこで本発明は、−Ｆ記ケーソンの軽量化を図ることを
課題とし、ケーソンの揚上作業や海−Ｌ運搬作業が簡単
に行えるようにすることを目的とする。However, each of the above-mentioned caisson weighs very large, and a great deal of labor is required for lifting the caisson and transporting it by sea. Therefore, an object of the present invention is to reduce the weight of the -F caisson, and to make it easier to lift the caisson and transport it by sea.
本発明は、」二層した課題を考慮してなされたもので、
所定の対向間隔を置いて平行に配置された壁内表面側コ
ンクリート板と壁内部コンクリート板と壁外表面側コン
クリート板とをラチス材を介して連結してなる壁組体を
、地」二にて先行構築されたケーソン底板部に配置固定
し、ケーソン上板部の型枠建て込みと配筋とを行ったの
ち、前記壁組体の壁内表面側コンクリート板と壁内部コ
ンクリート板の間の空間と、ケーソン上板部の型枠上に
コンクリート打設して、ケーソン内方構造体を構築し、
前記ケーソン内方構造体を海底に設置固定した後、前記
壁組体の壁内部コンクリート板と壁外表面側コンクリー
ト板の間の空間と、ケーソン内方構造体の上板部上にコ
ンクリート打設することにより、上記課題を解消するも
のである。The present invention was made in consideration of the two-layered problem.
A wall assembly is constructed by connecting concrete plates on the inner surface of the wall, concrete plates on the inner wall, and concrete plates on the outer surface of the wall, which are arranged in parallel with a predetermined opposing interval, through a lattice material, on the ground. After placing and fixing the caisson on the pre-constructed bottom plate of the caisson, and constructing the formwork and reinforcing the upper part of the caisson, the space between the concrete plate on the inner surface side of the wall and the concrete plate inside the wall of the wall assembly is , Concrete is poured on the formwork of the caisson upper plate to construct the caisson inner structure,
After the caisson inner structure is installed and fixed on the seabed, concrete is poured into the space between the inner wall concrete plate of the wall assembly and the wall outer surface side concrete plate and on the upper plate of the caisson inner structure. This solves the above problem.
本発明においては、壁内表面側コンクリート板と壁内部
コンクリ−１・板と壁外表面側コンクリート板とによっ
て内外二層の空間ををした壁組体を用いてケーソンが構
築されるものであって、まず地上で、前記壁組体の内側
の空間と上板部とをコンクリート打設することにより、
軽量のケーソン内方構造体が構築され、この状態で海上
に運搬して海底に設置する。そしてこのケーソン内方構
造体の上板部と前記壁組体の外方側の空間に海」二から
コンクリート打設することにより、海底にてケーソンが
構築されるようになる。In the present invention, a caisson is constructed using a wall assembly that has a two-layer space, an inner and outer space, formed by a concrete plate on the inner surface of the wall, a concrete plate inside the wall, and a concrete plate on the outer surface of the wall. First, on the ground, the inner space and the upper plate part of the wall assembly are poured with concrete,
A lightweight caisson inner structure will be constructed, and in this state it will be transported to sea and installed on the seabed. Then, the caisson is constructed on the seabed by pouring concrete into the upper plate part of the caisson inner structure and the outer space of the wall assembly from the sea.
つぎに、本発明を第１図から第６図に示す実施例に基づ
いて詳細に説明する。
図中１は壁組体で、後述するケーソンの壁板部の一部と
なる部材である。この壁組体１は第１図に不すように、
それぞれプレキャストコンクリートからなる壁内表面側
コンクリート板２と壁内部コンクリート板３と壁外表面
側コンクリート板４とが所定の対向間隔を置いて平行に
配置され、縦横に配置されたラチス材５によって、前記
壁内表面側コンクリ−１・板２と壁内部コンクリート板
３とが連結され、また壁内部コンクリート板３と壁外表
面側コンクリート板４とが連結され、内空間６と外空間
７との内外二層の空間を有しているものである。
この壁組体１の作成にあたっては、まず外方の一方のコ
ンクリート板或は中央となるコンクリート板（壁内部コ
ンクＵ −１−板）の配筋を行った後にラチス材５を縦
横に配置して、コンクリートの打設を行いコンクリート
板を作成する。つぎに前記コンクリート板と対向するコ
ンクリート板のための配筋を行った後に、この配筋上に
、前記ラチス材が一体となったコンクリート板を上下反
転させて位置させ、コンクリート打設を行って対向する
コンクリート板を作成する（なお、つぎに作成されるコ
ンクリート板側のラチス材との連結のための個所も設け
られる）。この後、一方のコンクリート板側にラチス材
が縦横にして連結される。
さらに残る外方側のコンクリート板の作成のために配筋
を行い、この配筋上に後付けとなった」ニ記うチス祠が
位置するようにして、先に作成されたコンクリート板を
吊り込み、コンクリート打設をして、上記内外二層の空
間を有した壁組体１を得る。
つぎに、」二記壁組体１を使用するに先立って、地上に
てケーソン底板部８が予め構築される。こののち第２図
に示すように、前記ケーソン底板部８の両辺上に例えば
定間隔で柱鉄筋組９を組み上げるとともに、この柱鉄筋
組９間に、内空間６が位置するようにして上記壁組体１
を配置固定し、前記柱鉄筋組９と壁組体１とに鉄筋を渡
して連結する。そして前記柱鉄筋組９に柱型枠を建て込
む。
つぎに、ケーソン上板部を形成するための型枠１０の建
て込みが行われ、その型枠１０の上に配筋が行われる（
第３図）。こののち上記壁組体１の内空間６にコンクリ
ートが打設されるとともに、前記型枠１０上に所定厚で
コンクリートが打設される。これによってコンクリート
打設された内空間６と柱と上板１１と上記ケーソン底板
部８とからなるケーソン内方構造体１２が形成される（
第４図）。
−Ｉ−記ケーソン内方構造体１２は海」−に輸送されて
、所定の海底上に沈めて設置され、ケーソン内方構造体
１２上にＨ型鋼などの長尺物１３を掛は渡して、これを
アンカー等の固定具１４によって海底に固定する（第５
図）。こののち前記ケーソン内方構造体１２における上
板１１上と外空間７とに海上からコンクリートを送り込
み、このコンクリート打設を行うことによって、上下左
右のケーソン」二板部１５とケーソン壁板部１５とケー
ソン底板部８とからなるケーソン１７が構築される（第
６図）。このケーソン１７を海底で順次並設させながら
構築し、連結することによって、海底上に管状の構造物
が形成されるようになる。Next, the present invention will be explained in detail based on the embodiments shown in FIGS. 1 to 6. In the figure, reference numeral 1 denotes a wall assembly, which is a member that becomes a part of the wall plate portion of the caisson, which will be described later. This wall assembly 1, as shown in FIG.
A wall inner surface side concrete plate 2, a wall inner concrete plate 3, and a wall outer surface side concrete plate 4, each made of precast concrete, are arranged in parallel at a predetermined distance from each other, and by lattice materials 5 arranged vertically and horizontally, The wall inner surface side concrete plate 1/plate 2 and the wall inner concrete plate 3 are connected, and the wall inner concrete plate 3 and the wall outer surface side concrete plate 4 are connected, and the inner space 6 and the outer space 7 are connected. It has two layers of space, inside and outside. In creating this wall assembly 1, first, reinforcement is placed on one of the outer concrete plates or the central concrete plate (inner wall concrete U-1 plate), and then the lattice materials 5 are placed vertically and horizontally. Then, concrete is poured and concrete plates are created. Next, after arranging reinforcement for the concrete plate facing the concrete plate, the concrete plate with the lattice material integrated therein is placed upside down and placed on top of the reinforcement, and concrete is poured. Create an opposing concrete plate (note that there will also be a place for connection with the lattice material on the concrete plate side that will be created next). After this, lattice materials are connected vertically and horizontally to one of the concrete plates. Furthermore, reinforcement was placed to create the remaining outer concrete plate, and the previously created concrete plate was suspended so that the Chis Shrine (which was added later) was located on top of this reinforcement. Then, concrete is poured to obtain the wall assembly 1 having the above-mentioned inner and outer two-layer spaces. Next, prior to using the wall assembly 1 mentioned above, the caisson bottom plate part 8 is constructed in advance on the ground. After that, as shown in FIG. 2, column reinforcing bars 9 are assembled on both sides of the caisson bottom plate 8 at regular intervals, and the inner space 6 is located between the column reinforcing bars 9 to form the wall. Assembly 1
are arranged and fixed, and reinforcing bars are passed between the column reinforcement set 9 and the wall assembly 1 to connect them. Then, a column formwork is built into the column reinforcement set 9. Next, a formwork 10 is built to form the caisson upper plate, and reinforcement is placed on top of the formwork 10 (
Figure 3). Thereafter, concrete is poured into the inner space 6 of the wall assembly 1, and concrete is poured onto the formwork 10 to a predetermined thickness. As a result, a caisson inner structure 12 is formed, which is made up of the concrete-cast inner space 6, columns, upper plate 11, and the caisson bottom plate 8.
Figure 4). - I - The caisson inner structure 12 is transported to the sea and installed by sinking it on a predetermined seabed. , this is fixed to the seabed using a fixing device 14 such as an anchor (fifth
figure). After that, concrete is sent from the sea onto the upper plate 11 and the outer space 7 of the caisson inner structure 12, and by pouring this concrete, the upper, lower, left and right caisson two plate parts 15 and the caisson wall plate parts 15 A caisson 17 consisting of a caisson base plate 8 and a caisson bottom plate portion 8 is constructed (FIG. 6). A tubular structure is formed on the seabed by constructing and connecting these caissons 17 one after another on the seabed.
以」二説明したように、本発明によれば、所定の対向間
隔を置いて平行に配置された壁内表面側コンクリート板
と壁内部コンクリート板と壁外表面側コンクリート板と
をラチス材を介して連結してなる壁組体を、地上にて先
行構築されたケーソン底板部に配置固定し、ケーソン」
二板部の型枠建て込みと配筋とを行ったのち、前記壁組
体の壁内表面側コンクリート板と壁内部コンクリート板
の間の空間と、ケーソン」二板部の型枠」二にコンクリ
ート打設して、ケーソン内方構造体を構築し、前記ケー
ソン内方構造体を海底に設置固定した後、前記壁組体の
壁内部コンクリート板と壁外表面側コンクリート板の間
の空間と、ケーソン内方構造体の」二板部上にコンクリ
ート打設するので、地上で構築されたケーソン内方構造
体はその重量が小さくなり、よってケーソンの構築工程
全体を通して、従来大変手間の要するものであった地上
での揚上作業、海上運搬作業、海底据え付は作業などが
簡単に行え、ケーソンの構築が効率良くなるなど、実用
性にすぐれた効果を奏するものである。As described above, according to the present invention, the wall inner surface side concrete plate, the wall inner concrete plate, and the wall outer surface side concrete plate, which are arranged in parallel with a predetermined opposing interval, are connected through a lattice material. The connected wall assembly is placed and fixed on the caisson bottom plate previously constructed on the ground, and the caisson is assembled.
After erecting the formwork and reinforcing the second plate part, concrete is poured into the space between the concrete plate on the inner surface side of the wall of the wall assembly and the concrete plate inside the wall, and into the formwork of the second plate part of the caisson. After installing and fixing the caisson inner structure on the seabed, the space between the inner concrete plate of the wall assembly and the concrete plate on the outer surface side of the wall and the inner caisson structure are constructed. By pouring concrete onto the second plate of the structure, the weight of the inner caisson structure is reduced and the weight of the inner caisson structure is reduced. Lifting work at sea, transportation work at sea, and installation on the seabed can be easily performed, and caisson construction is more efficient, which has excellent practical effects.
第１図は本発明に係るケーソンの構築工法の一実施例に
おける壁組体を示す説明図、第２図はケーソン底板部に
壁組体を設置した状態を示す説明図、第３図はケーソン
上板部を形成するための型枠と配筋を示す説明図、第４
図はケーソン内方構造体を示す説明図、第５図はケーソ
ン内方構造体を海底に設置した状態を示す説明図、第６
図は海底に構築されたケーソンを示す説明図である。
１・・・・・・壁組体
２・・・・・・壁内表面側コンクリート板３・・・・・
・壁内部コンクリ−１・板４・・・・・・壁外表面側コ
ンクリート板５・・・・・・ラチス材
６・・・・・・内空間
７・・・・・・外空間
８・・・・・・ケーソン底板部
１２・・・・・・ケーソン内方構造体
１５・・・・・・ケーソン上板部
１６・・・・・・ケーソン壁板部
１７・・・・・・ケーソンFig. 1 is an explanatory diagram showing a wall assembly in an embodiment of the caisson construction method according to the present invention, Fig. 2 is an explanatory diagram showing a state in which the wall assembly is installed on the caisson bottom plate, and Fig. 3 is an explanatory diagram showing the wall assembly in an embodiment of the caisson construction method according to the present invention. Explanatory diagram showing the formwork and reinforcement arrangement for forming the upper plate part, No. 4
Figure 5 is an explanatory diagram showing the caisson internal structure, Figure 5 is an explanatory diagram showing the caisson internal structure installed on the seabed, and Figure 6 is an explanatory diagram showing the caisson internal structure installed on the seabed.
The figure is an explanatory diagram showing a caisson built on the seabed. 1... Wall assembly 2... Wall inner surface side concrete plate 3...
・Wall interior concrete 1・Plate 4・・・・Wall outer surface side concrete plate 5・・Lattice material 6・・・・Inner space 7・・・・Outer space 8・... Caisson bottom plate part 12 ... Caisson inner structure 15 ... Caisson top plate part 16 ... Caisson wall plate part 17 ... Caisson
Claims (1)
ンクリート板と壁内部コンクリート板と壁外表面側コン
クリート板とをラチス材を介して連結してなる壁組体を
、地上にて先行構築されたケーソン底板部に配置固定し
、 ケーソン上板部の型枠建て込みと配筋とを行ったのち、 前記壁組体の壁内表面側コンクリート板と壁内部コンク
リート板の間の空間と、ケーソン上板部の型枠上にコン
クリート打設して、ケーソン内方構造体を構築し、 前記ケーソン内方構造体を海底に設置固定した後、前記
壁組体の壁内部コンクリート板と壁外表面側コンクリー
ト板の間の空間と、ケーソン内方構造体の上板部上にコ
ンクリート打設することを特徴とする海底ケーソンの構
築工法。[Scope of Claims] A wall assembly formed by connecting concrete plates on the inner surface of the wall, concrete plates on the inner wall, and concrete plates on the outer surface of the wall, which are arranged in parallel with a predetermined opposing interval, through a lattice material. were placed and fixed on the caisson bottom plate previously constructed on the ground, and after the formwork and reinforcing for the caisson top plate were installed, the concrete plate on the inner surface side of the wall of the wall assembly and the concrete inside the wall were installed. Concrete is poured into the space between the plates and on the formwork of the upper plate of the caisson to construct the caisson inner structure, and after the caisson inner structure is installed and fixed on the seabed, the inside of the wall of the wall assembly is constructed. A construction method for a submarine caisson characterized by pouring concrete in the space between the concrete plate and the concrete plate on the outer surface of the wall and on the upper plate of the inner caisson structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2248306A JPH04128426A (en) | 1990-09-18 | 1990-09-18 | Method for constructing submarine caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2248306A JPH04128426A (en) | 1990-09-18 | 1990-09-18 | Method for constructing submarine caisson |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04128426A true JPH04128426A (en) | 1992-04-28 |
Family
ID=17176117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2248306A Pending JPH04128426A (en) | 1990-09-18 | 1990-09-18 | Method for constructing submarine caisson |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04128426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661881A (en) * | 2015-02-09 | 2017-05-10 | 泰盈皮克姆株式会社 | Safety-enhanced pc truss wall structure, and underground-structure construction method using same |
-
1990
- 1990-09-18 JP JP2248306A patent/JPH04128426A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661881A (en) * | 2015-02-09 | 2017-05-10 | 泰盈皮克姆株式会社 | Safety-enhanced pc truss wall structure, and underground-structure construction method using same |
| JP2018505981A (en) * | 2015-02-09 | 2018-03-01 | テヨン ピーシーエム カンパニー リミテッドＴａｅｙｅｏｎｇ Ｐｃｍ Ｃｏ．，Ｌｔｄ | PC truss wall structure and construction method thereof |
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