A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXISTING PIPE REHABILITATION METHOD
To provide an existing pipe rehabilitation method capable of suppressing large local deformation of a peripheral edge of a communication port of a rehabilitation pipe due to injection of backfilling material even if a structure of a floating prevention work is simple.SOLUTION: A rehabilitation pipe 3 is lined on an inner surface of an existing pipe 1 having a connection port 2a with a branch pipe 2, and a communication port 3b with the connection port 2a is formed in the rehabilitation pipe 3. An elastic closing member 20 is installed in an inter-periphery annular gap 4c in an inter-pipe gap 4 to close the inter-periphery annular gap 4c. A floating prevention work 10 with a simple structure is installed, and a backfilling material 6 is injected into the inter-pipe gap 4. Thereafter, the closing member 20 is removed, and the inter-periphery annular gap 4c after removal is filled with a gap filler 8.SELECTED DRAWING: Figure 2
【課題】浮上防止工の構造が簡易であっても、裏込め材の注入によって更生管の連通口の周縁部が局所的に大きく変形されるのを抑制可能な既設管更生方法を提供する。【解決手段】枝管２との接続口２ａを有する既設管１の内面に更生管３をライニングし、更生管３には接続口２ａとの連通口３ｂを形成する。管間間隙４における周縁間環状隙間４ｃには弾性を有する閉塞部材２０を設置することにより、周縁間環状隙間４ｃを塞ぐ。簡易構造の浮上防止工１０を設置して、管間間隙４に裏込め材６を注入する。その後、閉塞部材２０を撤去し、撤去後の周縁間環状隙間４ｃに隙間充填材８を充填する。【選択図】図２
EXISTING PIPE REHABILITATION METHOD
To provide an existing pipe rehabilitation method capable of suppressing large local deformation of a peripheral edge of a communication port of a rehabilitation pipe due to injection of backfilling material even if a structure of a floating prevention work is simple.SOLUTION: A rehabilitation pipe 3 is lined on an inner surface of an existing pipe 1 having a connection port 2a with a branch pipe 2, and a communication port 3b with the connection port 2a is formed in the rehabilitation pipe 3. An elastic closing member 20 is installed in an inter-periphery annular gap 4c in an inter-pipe gap 4 to close the inter-periphery annular gap 4c. A floating prevention work 10 with a simple structure is installed, and a backfilling material 6 is injected into the inter-pipe gap 4. Thereafter, the closing member 20 is removed, and the inter-periphery annular gap 4c after removal is filled with a gap filler 8.SELECTED DRAWING: Figure 2
【課題】浮上防止工の構造が簡易であっても、裏込め材の注入によって更生管の連通口の周縁部が局所的に大きく変形されるのを抑制可能な既設管更生方法を提供する。【解決手段】枝管２との接続口２ａを有する既設管１の内面に更生管３をライニングし、更生管３には接続口２ａとの連通口３ｂを形成する。管間間隙４における周縁間環状隙間４ｃには弾性を有する閉塞部材２０を設置することにより、周縁間環状隙間４ｃを塞ぐ。簡易構造の浮上防止工１０を設置して、管間間隙４に裏込め材６を注入する。その後、閉塞部材２０を撤去し、撤去後の周縁間環状隙間４ｃに隙間充填材８を充填する。【選択図】図２
EXISTING PIPE REHABILITATION METHOD
既設管更生方法
TSUDA NAOYA (author) / SHIRATAKI KOJI (author) / YAMASHITA TAKUYA (author)
2023-11-21
Patent
Electronic Resource
Japanese
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