JPH0258631A - Execution of caisson - Google Patents
Execution of caissonInfo
- Publication number
- JPH0258631A JPH0258631A JP20801988A JP20801988A JPH0258631A JP H0258631 A JPH0258631 A JP H0258631A JP 20801988 A JP20801988 A JP 20801988A JP 20801988 A JP20801988 A JP 20801988A JP H0258631 A JPH0258631 A JP H0258631A
- Authority
- JP
- Japan
- Prior art keywords
- caisson
- slab
- water
- iron
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000979 retarding effect Effects 0.000 abstract description 8
- 239000004575 stone Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 14
- 229910052742 iron Inorganic materials 0.000 abstract 7
- 230000002787 reinforcement Effects 0.000 abstract 7
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 5
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 3
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Revetment (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、水中にスラブ、即ち蓋部を有するケーソンの
施工方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of constructing a caisson having an underwater slab, ie, a lid.
従来、第７図に示すごとく、水中にスラブ１、即ち蓋部
を設け、その上部の壁面にスリット２を設けた遊水部３
とすることにより消波機能をもたせたケーソンを水底の
基礎栗石均し面４上に据付は施工する際には、陸上など
のヤードで、水中のスラブ１及び水面上のスラブ１０を
一体に形成した密閉型のケーソンを製作し、これを曳航
または吊り上げて据付は場所まで運搬し、第８図のごと
く台船８上の水中サンドポンプ９からの砂と水とからな
るスラリーＳＷによって上記ケーソン内に中詰砂Ｓを充
填し、ケーソン内の水Ｗを排出するという方法がとられ
ており、このような密閉型のケーソンの施工方法として
は、天端面が水平な堤体の築造方法に関する特公昭６（
１−３５６７の発明でも知られている。Conventionally, as shown in FIG. 7, a water retarding section 3 is provided with a slab 1, that is, a lid section underwater, and a slit 2 on the upper wall surface.
When installing a caisson with a wave-dissipating function on the leveled foundation surface 4 at the bottom of the water, the underwater slab 1 and the slab 10 above the water surface are formed integrally in a yard on land. A sealed caisson is fabricated and transported to the installation site by towing or hoisting, and as shown in Fig. 8, the inside of the caisson is filled with slurry SW consisting of sand and water from the submersible sand pump 9 on the barge 8. A method is used in which the caisson is filled with sand S and the water W inside the caisson is discharged.As a construction method for such a closed caisson, there are special methods for constructing an embankment body with a horizontal top surface. Kosho 6 (
He is also known for his invention of No. 1-3567.
しかしながら、上記の密閉型ケーソンの施工方法では、
中詰砂Ｓが確実に充填できているかどうかを目視により
確認することが困難であり、また、スラリー輸送による
ので中詰砂Ｓの充填時間が長くなり、一方、ケーソンの
波力などの外力に対する安定計算は中詰砂Ｓの充填され
た状態でなされているので、砂の充填前まではそのケー
ソンは常に外力に対して不安定な状況下にあることにな
るという問題もある。However, in the construction method of the closed caisson described above,
It is difficult to visually check whether the filling sand S has been reliably filled, and the filling time for the filling sand S is longer because slurry transportation is used. Since stability calculations are performed with the caisson filled with sand S, there is also the problem that the caisson is always unstable against external forces until it is filled with sand.
また、スラリー充填用の設備が必要となるので不経済で
あるという問題点があった。Furthermore, there is a problem that it is uneconomical because equipment for filling the slurry is required.
本発明は、前記従来の問題点を解消するためになされた
ものであり、特に水中にスラブを有するケーソンを容易
に、かつ経済的に、しかも外力に対して安定した状態で
据付施工する方法を提供することを目的としたものであ
る。The present invention was made in order to solve the above-mentioned conventional problems, and in particular, to provide a method for installing a caisson having a slab underwater easily, economically, and in a stable state against external forces. It is intended to provide.
上記の目的を達成するための本発明のケーソン施工方法
は、水中にスラブを有するケーソンを、スラブを除き、
かつ水中のスラブ位置の壁面から鉄筋を出した状態にヤ
ードなどで製作の後、そのケーソンを所定の据付位置迄
運搬して注水により据付け、ケーソン中に中詰砂をガツ
ト船などで投入した後、上記壁面から出した鉄筋にあら
かじめ組んだ鉄筋をセット結束の上、スラブコンクリー
トを水中打設することを特徴としたものであり、従来の
ごときスラブ、即ち蓋部がないので中詰砂をスラリー輸
送せずにガツト船などにより迅速に投入充填できるもの
である。The caisson construction method of the present invention to achieve the above object is to construct a caisson having a slab in the water, excluding the slab.
After fabricating the caisson in a yard with the reinforcing bars protruding from the wall of the slab in the water, the caisson is transported to the specified installation location and installed by pouring water into the caisson, and filling sand is poured into the caisson using a boat, etc. This method is characterized by setting and bundling pre-assembled reinforcing bars to the reinforcing bars taken out from the wall surface, and then pouring slab concrete underwater.Since there is no conventional slab, that is, a lid, the filling sand is used as a slurry. It can be quickly loaded and refilled using Gatsuto ships, etc., without having to be transported.
Ｅ実施例〕
以下図面を参照して本発明の方法を適用してケーソンの
据付施工を行なっている一実施例を説明するが、その据
付施工の手順を第１図から第４図までのケーソンの側断
面図で順次説明する。Example E] An example in which the method of the present invention is applied to install a caisson will be described below with reference to the drawings. This will be explained sequentially using side sectional views.
まず、第１図に示すごと（ケーソンのスラブ、即ち蓋部
を除き、かつ水中のスラブ位置の壁面、即ち側壁と隔壁
とから鉄筋１３を出した状態に陸上などのヤードで製作
の後、曳航その他の適宜な手段で水底の基礎栗石均し面
４の所定の位置に運搬してケーソン内に注水により据付
ける。First, as shown in Figure 1 (with the slab of the caisson, i.e., the lid removed, and the reinforcing bars 13 protruding from the wall surface of the slab in the water, i.e., side walls and bulkheads), it is manufactured in a yard on land, and then towed. It is transported to a predetermined position on the foundation stone leveling surface 4 at the bottom of the water by any other appropriate means and installed by pouring water into the caisson.
なお、運搬前に遊水部３のスリット２の部分にはスリッ
ト部首１４を取付けておくものとする。Note that the slit neck 14 is attached to the slit 2 portion of the water retarding portion 3 before transportation.
次に、第２図のごとく、ケーソン内にガツト船等により
中詰砂Ｓを投入するが、スリット２を設けた遊水部３側
には鉄筋１３を出した部分迄中詰砂Ｓを投入する。Next, as shown in Fig. 2, filler sand S is put into the caisson using a boat or the like, and the filler sand S is put into the caisson up to the part where the reinforcing bar 13 is exposed on the side of the water retarding section 3 where the slit 2 is provided. .
更に、第３図のごとく、上記鉄筋１３に、あらかじめ組
んだ鉄筋１５をセット結束するが、必要なら潜水夫によ
ってその結束を行なうものとする。Furthermore, as shown in FIG. 3, pre-assembled reinforcing bars 15 are set and tied to the reinforcing bars 13, and if necessary, the bundling can be done by a diver.
そこで、第４図のごとく、水中にスラブ１を有する遊水
部３の部分に水を残したまま、特殊水中コンクリートＣ
を使用してコンクリートポンプ１６等でスラブコンクリ
ートを打設してスラブ１を形成する。Therefore, as shown in Figure 4, the special underwater concrete C
A concrete pump 16 or the like is used to cast slab concrete to form the slab 1.
なお、水面上の蓋コンクリートＩ７は普通のコンクリー
トを使用して打設を行なう。Note that the cover concrete I7 above the water surface is cast using ordinary concrete.
以上により水中のスラブ１が完成したらスリット部首１
４を取外すことにより、スリット２を多数設けた消波機
能を有する遊水部３を設けたケーソンの据付施工が完了
する。When the underwater slab 1 is completed as described above, the slit radical 1
4 completes the installation of the caisson provided with the water retarding section 3 having a wave-dissipating function and having a large number of slits 2.
次に、第５図の側断面図及び第６図の平面図は二重円筒
ケーソンであり、外側壁２０と内側壁２１とにより仕切
られた各部屋に中詰砂Ｓをそれぞれ充填し、外側壁２０
と内側壁２Ｉとの間に水中のスラブ１を有しており、そ
の上部が遊水部３になっており、更に遊水部３の矢印Ｆ
で示す被測には多数のスリット２を設けて消波機能を持
たせたものであるが、このような二重円筒ケーソンを基
礎栗石均し面４上に据付施工する際にも前記実施例と同
様に本発明の方法を適用可能であり、第４図と同じ部材
は同じ番号で示している。Next, the side sectional view in FIG. 5 and the plan view in FIG. wall 20
It has an underwater slab 1 between the inner wall 2I and the upper part of the slab 1, and the upper part thereof is a water retarding part 3, and the arrow F of the water retarding part 3
The object to be measured shown in is equipped with a large number of slits 2 to have a wave-dissipating function, but when installing such a double cylindrical caisson on the foundation stone leveling surface 4, the above-mentioned example is also used. The method of the invention can be applied in the same manner as in FIG. 4, and the same parts as in FIG. 4 are designated by the same numbers.
以上に説明したごとく、本発明のケーソン施工方法によ
れば、従来方法のごとくスラリー充填用の設備が不要で
あるので、経済的であり、また水中のスラブ、即ち蓋部
の中詰砂の充填状況が目視により確認でき、しかもケー
ソン内への中詰砂の充填が迅速に行なわれるので据付施
工中の波等の外力によりケーソンが不安定な状態になる
時間が少ないという効果がある。As explained above, according to the caisson construction method of the present invention, there is no need for slurry filling equipment as in the conventional method, so it is economical, and filling of the submerged slab, that is, filling sand in the lid part, is economical. The situation can be checked visually, and the caisson is quickly filled with sand, so there is less time for the caisson to become unstable due to external forces such as waves during installation.
即ち、据付後のケーソン内には、水か中詰砂がケーソン
内上部まで入っているので、従来の密閉型ケーソンに比
べて波浪に対して安定しているという利点がある。That is, since the caisson after installation is filled with water or sand up to the top, it has the advantage of being more stable against waves than conventional closed-type caissons.
第１図、第２図、第３図及び第４図は本発明の方法を適
用したケーソンの据付施工の一実施例における手順を説
明する一連の側断面図、第５図は本発明の方法を適用可
能な二重円筒ケーソンの側断面図、第６図は第５図のＡ
−Ａ方向の平断面図、第７図及び第８図は従来の密閉型
ケーソンの施工手順を説明する側断面図である。
■・・・スラブ、１．３．１５・・・鉄筋、１７・・・
蓋コンクリート、Ｃ・・・水中コンクリート、Ｓ・・・
中詰砂。Figures 1, 2, 3, and 4 are a series of side sectional views illustrating the steps in one embodiment of caisson installation using the method of the present invention, and Figure 5 is a series of side sectional views showing the method of the present invention. A side cross-sectional view of a double cylindrical caisson to which this can be applied, Figure 6 is A of Figure 5.
A plan sectional view taken in the -A direction, and FIGS. 7 and 8 are side sectional views illustrating the construction procedure of a conventional closed-type caisson. ■... Slab, 1.3.15... Rebar, 17...
Lid concrete, C... Underwater concrete, S...
Filling sand.
Claims (1)
水中のスラブ位置の壁面から鉄筋を出した状態に製作の
後、該ケーソンを据付位置まで運搬して注水により据付
け、該ケーソン内に中詰砂を投入した後、上記壁面から
出した鉄筋にあらかじめ組んだ鉄筋をセット結束の上、
スラブコンクリートを水中打設するケーソンの施工方法
。After manufacturing a caisson with an underwater slab, with the slab removed and the reinforcing bars protruding from the wall at the underwater slab location, the caisson is transported to the installation location and installed by pouring water, and the caisson is filled with sand. After putting in the reinforcing bars taken out from the wall, set the pre-assembled reinforcing bars and tie them together.
A caisson construction method in which slab concrete is poured underwater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20801988A JPH0258631A (en) | 1988-08-24 | 1988-08-24 | Execution of caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20801988A JPH0258631A (en) | 1988-08-24 | 1988-08-24 | Execution of caisson |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0258631A true JPH0258631A (en) | 1990-02-27 |
| JPH052774B2 JPH052774B2 (en) | 1993-01-13 |
Family
ID=16549329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20801988A Granted JPH0258631A (en) | 1988-08-24 | 1988-08-24 | Execution of caisson |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0258631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006299580A (en) * | 2005-04-19 | 2006-11-02 | Kyoto Univ | Cut-off cover, towing method and construction method for upper-slope slit breakwater |
| JP2019138031A (en) * | 2018-02-08 | 2019-08-22 | 日立造船株式会社 | Installation method of steel plate cell, and steel plate cell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55119812A (en) * | 1979-03-06 | 1980-09-13 | Penta Ocean Constr Co Ltd | Filling method of precast embankment |
| JPS56119019A (en) * | 1980-02-20 | 1981-09-18 | Kawasaki Steel Corp | Construction of submerged structure |
| JPS58143023A (en) * | 1982-02-17 | 1983-08-25 | Taisei Corp | Caisson for pile supporting type breakwater |
-
1988
- 1988-08-24 JP JP20801988A patent/JPH0258631A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55119812A (en) * | 1979-03-06 | 1980-09-13 | Penta Ocean Constr Co Ltd | Filling method of precast embankment |
| JPS56119019A (en) * | 1980-02-20 | 1981-09-18 | Kawasaki Steel Corp | Construction of submerged structure |
| JPS58143023A (en) * | 1982-02-17 | 1983-08-25 | Taisei Corp | Caisson for pile supporting type breakwater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006299580A (en) * | 2005-04-19 | 2006-11-02 | Kyoto Univ | Cut-off cover, towing method and construction method for upper-slope slit breakwater |
| JP2019138031A (en) * | 2018-02-08 | 2019-08-22 | 日立造船株式会社 | Installation method of steel plate cell, and steel plate cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH052774B2 (en) | 1993-01-13 |
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