JPH052058B2 - - Google Patents
Info
- Publication number
- JPH052058B2 JPH052058B2 JP17397287A JP17397287A JPH052058B2 JP H052058 B2 JPH052058 B2 JP H052058B2 JP 17397287 A JP17397287 A JP 17397287A JP 17397287 A JP17397287 A JP 17397287A JP H052058 B2 JPH052058 B2 JP H052058B2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- hollow
- concrete structure
- hollow concrete
- board
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は中空型コンクリート構造物の蓋の施工
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of constructing a lid for a hollow concrete structure.
（従来技術）
防波堤又は護岸等の建設方法として、蓋コンク
リート版を堤体ケーソンと一体として、略閉鎖箱
状に造函ヤードで製作し、これを進水、曳航、据
付の後堤体に予め設けた注入口から水と砂との懸
濁液を注入して行う方法が近年話題になつてい
る。この方法において造函ヤードで蓋コンクリー
ト版を堤体ケーソンと一体として製作せんとする
場合には第３図に示すように中空型コンクリート
構造物１の上部にパイプサポート等を用いた直接
支保工、仮設ビーム支保工２及び底型枠３を形成
し、この上にコンクリート４を打設する方法が考
えられるがこの方法では高所用の支保工の設置
と、コンクリート硬化後の底型枠及び支保工の撤
去と回収並びに撤去用の口の埋戻し等を必要と
し、この作業が極めて困難である。(Prior art) As a construction method for breakwaters or seawalls, etc., a concrete cover slab is integrated with the dam body caisson and manufactured in a box yard in the form of a nearly closed box, and after launching, towing, and installation, it is preliminarily attached to the dam body. In recent years, a method of injecting a suspension of water and sand through a prepared injection port has become a hot topic. When using this method to manufacture the concrete cover slab integrally with the embankment caisson in a box yard, as shown in Fig. 3, the upper part of the hollow concrete structure 1 must be directly supported using pipe supports, etc. One possible method is to form a temporary beam support 2 and a bottom form 3 and then pour concrete 4 on top of this, but this method involves installing a support for high places, and installing the bottom form and support after the concrete has hardened. This work is extremely difficult, as it requires the removal and recovery of the waste, as well as backfilling of the opening for removal.
第４図は中空型コンクリート構造物１の上面
に、別途製作したプレキヤストコンクリート版５
を取りつけたものであるが、プレキヤストコンク
リート版は多量の鉄筋を含み、例えば20tと比較
的に重く、その運搬に大型クレーンを必要とし、
又端部や継手部の構造処理が難しい欠点がある。 Figure 4 shows a separately manufactured precast concrete plate 5 on the top surface of the hollow concrete structure 1.
However, the precast concrete version contains a large amount of reinforcing steel and is relatively heavy, for example 20 tons, and requires a large crane to transport it.
Another drawback is that structural treatment of the ends and joints is difficult.
（発明の目的）
本発明の目的は上記のような従来の欠点を除去
した中空型コンクリート構造物の蓋の施工法を得
るにある。(Object of the Invention) An object of the present invention is to obtain a method for constructing a lid for a hollow concrete structure that eliminates the conventional drawbacks as described above.
（発明の構成）
本発明の中空型コンクリート構造物の蓋の施工
法は中空型コンクリート構造物の上方の開口を板
材で気密に塞ぐ工程と、中空型コンクリート構造
物内部を加圧する工程と、前記板材の上面に鉄筋
コンクリート打ちを行う工程とより成ることを特
徴とする。(Structure of the Invention) The method for constructing a lid for a hollow concrete structure according to the present invention includes a step of airtightly closing the upper opening of the hollow concrete structure with a board, a step of pressurizing the inside of the hollow concrete structure, and a step of pressurizing the inside of the hollow concrete structure. It is characterized by the process of pouring reinforced concrete onto the top surface of the board.
（発明の実施例） 以下図面によつて本発明の実施例を説明する。(Example of the invention) Embodiments of the present invention will be described below with reference to the drawings.
本発明においては第１図に示すように中空型コ
ンクリート構造物１の上部開口の内周面に帯状の
鉄板、合成樹脂板、合成ゴム板等の板材６の外周
を埋込み、この板材６の内周に鉄板、合成樹脂
板、合成ゴム板等の板材７の外周を溶接若しくは
接着して中空型コンクリート構造物１を気密に閉
じると共に、中空型コンクリート構造物１内にコ
ンプレツサー８を介して圧縮空気を導入した状態
で前記板材６，７の上部に所定の配筋を行い、こ
れにコンクリートを打設し又は吹き付けて厚さ例
えば30cmの頂版コンクリートパネル９を構成せし
める。 In the present invention, as shown in FIG. The hollow concrete structure 1 is airtightly closed by welding or gluing the outer periphery of a plate material 7 such as a steel plate, a synthetic resin plate, or a synthetic rubber plate, and compressed air is supplied into the hollow concrete structure 1 via a compressor 8. With the reinforcing bars introduced, predetermined reinforcing bars are placed on the tops of the plates 6 and 7, and concrete is cast or sprayed onto the reinforcing bars to form a top concrete panel 9 having a thickness of, for example, 30 cm.
（発明の効果）
本発明方法においては上記のようにコンクリー
ト打設時の諸荷重を支える為予め中空型コンクリ
ート構造物１の上面開口を板材６，７で覆い、中
空型コンクリート構造物１内の加圧空気でこれを
下方から支え、その状態でコンクリート打設によ
る所定厚の頂版コンクリートパネル９を形成する
ようにしたのでその作業が極めて簡単且つ容易
で、又高所用の支保工の設置や、底型枠及び支保
工の撤去と回収が不要となる大きな利益がある。(Effects of the Invention) As described above, in the method of the present invention, the upper opening of the hollow concrete structure 1 is covered with plates 6 and 7 in order to support various loads during concrete pouring, and the inside of the hollow concrete structure 1 is covered with plates 6 and 7. This is supported from below with pressurized air, and in this state the top slab concrete panel 9 of a predetermined thickness is formed by pouring concrete, which makes the work extremely simple and easy, and also facilitates the installation of supports for high places. , there is a great benefit of not having to remove and recover the bottom formwork and shoring.
第１図、第２図は本発明方法による中空型コン
クリート構造物の断面図、第３図、第４図は夫々
従来方法による中空型コンクリート構造物の断面
図である。
１……中空型コンクリート構造物、２……支保
工、３……底型枠、４……コンクリート、５……
コンクリート版、６，７……板材、８……コンプ
レツサー、９……頂版コンクリート。
FIGS. 1 and 2 are sectional views of a hollow concrete structure produced by the method of the present invention, and FIGS. 3 and 4 are sectional views of hollow concrete structures produced by the conventional method. 1...Hollow type concrete structure, 2...Shoring, 3...Bottom formwork, 4...Concrete, 5...
Concrete plate, 6, 7... Board material, 8... Compressor, 9... Top plate concrete.
Claims (1)
材で気密に塞ぐ工程と、中空型コンクリート構造
物内部を加圧する工程と、前記板材の上面に鉄筋
コンクリート打ちを行う工程とより成ることを特
徴とする中空型コンクリート構造物の蓋の施工
法。1. A hollow structure characterized by comprising the steps of: airtightly closing the upper opening of a hollow concrete structure with a board; pressurizing the inside of the hollow concrete structure; and pouring reinforced concrete on the top surface of the board. Construction method for lids of molded concrete structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17397287A JPS6417931A (en) | 1987-07-14 | 1987-07-14 | Construction of cover for hollow concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17397287A JPS6417931A (en) | 1987-07-14 | 1987-07-14 | Construction of cover for hollow concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6417931A JPS6417931A (en) | 1989-01-20 |
| JPH052058B2 true JPH052058B2 (en) | 1993-01-11 |
Family
ID=15970434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17397287A Granted JPS6417931A (en) | 1987-07-14 | 1987-07-14 | Construction of cover for hollow concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6417931A (en) |
-
1987
- 1987-07-14 JP JP17397287A patent/JPS6417931A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6417931A (en) | 1989-01-20 |
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