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METHOD AND STRUCTURE FOR REHABILITATING EXISTING WATERWAY STRUCTURE, AND REHABILITATION PIPE FOR EXISTING WATERWAY STRUCTURE
To prevent leakage of a back-filling material into the inner periphery of a rehabilitation pipe, when rehabilitating an existing deteriorated waterway structure constituting road side ditches by using the rehabilitation pipe.SOLUTION: An existing waterway structure 10 has a main waterway 11 and an open passage 12 continued to an upper part of the main waterway 11. A rehabilitation pipe 20 is installed in the main waterway 11 along the main waterway 11. The rehabilitation pipe 20 is formed by spirally winding a belt-like member 25 and by fitting adjacent marginal parts of winding parts with each other. A communication port 22 extended along the open passage 12 and continued to the open passage 12 is formed to the rehabilitation pipe 20. In a state of butting a pair of rehabilitation boards 40 to both side edges 22a of the communication port 22 of the rehabilitation pipe 20, a back-filling material 60 is filled into a space between an inner periphery of the main waterway 11 and the rehabilitation pipe 20. Before filling the back-filling material 60, among joint regions R0 where the marginal parts of adjacent winding parts of the rehabilitation pipe overlap, at least a part of a specific region from a boundary 110 between the adjacent winding parts appearing on the inner periphery of the rehabilitation pipe 20 to a fitting region R1 nearest to the boundary 110 is sealed.SELECTED DRAWING: Figure 7
【課題】道路側溝等を構成する老朽化した既設水路構造物を、更生管を用いて更生する際に、更生管の内周に裏込め材が漏れ出るのを防止する。【解決手段】 既設水路構造物１０は、主水路１１と、主水路１１の上部に連なる開口路１２とを有する。主水路１１に沿って主水路１１内に更生管２０を設置する。更生管２０は、帯状部材２５を螺旋に巻くとともに、隣接する巻き部分の縁部同士を嵌合することにより形成される。更生管２０に、開口路１２に沿って延びるとともに開口路１２に連なる連通口２２を形成する。一対の更生板４０を更生管２０の連通口２２の両側縁２２ａに当てた状態で、主水路１１の内周と更生管２０との間に裏込め材６０を充填する。裏込め材６０の充填に先立ち、更生管の隣接する巻き部分の縁部が重なる接合領域Ｒ０のうち、少なくとも更生管２０の内周に現れる上記隣接する巻き部分間の境界１１０からこの境界１１０に最も近い嵌合領域Ｒ１までの特定領域の一部を封止する。【選択図】図７
METHOD AND STRUCTURE FOR REHABILITATING EXISTING WATERWAY STRUCTURE, AND REHABILITATION PIPE FOR EXISTING WATERWAY STRUCTURE
To prevent leakage of a back-filling material into the inner periphery of a rehabilitation pipe, when rehabilitating an existing deteriorated waterway structure constituting road side ditches by using the rehabilitation pipe.SOLUTION: An existing waterway structure 10 has a main waterway 11 and an open passage 12 continued to an upper part of the main waterway 11. A rehabilitation pipe 20 is installed in the main waterway 11 along the main waterway 11. The rehabilitation pipe 20 is formed by spirally winding a belt-like member 25 and by fitting adjacent marginal parts of winding parts with each other. A communication port 22 extended along the open passage 12 and continued to the open passage 12 is formed to the rehabilitation pipe 20. In a state of butting a pair of rehabilitation boards 40 to both side edges 22a of the communication port 22 of the rehabilitation pipe 20, a back-filling material 60 is filled into a space between an inner periphery of the main waterway 11 and the rehabilitation pipe 20. Before filling the back-filling material 60, among joint regions R0 where the marginal parts of adjacent winding parts of the rehabilitation pipe overlap, at least a part of a specific region from a boundary 110 between the adjacent winding parts appearing on the inner periphery of the rehabilitation pipe 20 to a fitting region R1 nearest to the boundary 110 is sealed.SELECTED DRAWING: Figure 7
【課題】道路側溝等を構成する老朽化した既設水路構造物を、更生管を用いて更生する際に、更生管の内周に裏込め材が漏れ出るのを防止する。【解決手段】 既設水路構造物１０は、主水路１１と、主水路１１の上部に連なる開口路１２とを有する。主水路１１に沿って主水路１１内に更生管２０を設置する。更生管２０は、帯状部材２５を螺旋に巻くとともに、隣接する巻き部分の縁部同士を嵌合することにより形成される。更生管２０に、開口路１２に沿って延びるとともに開口路１２に連なる連通口２２を形成する。一対の更生板４０を更生管２０の連通口２２の両側縁２２ａに当てた状態で、主水路１１の内周と更生管２０との間に裏込め材６０を充填する。裏込め材６０の充填に先立ち、更生管の隣接する巻き部分の縁部が重なる接合領域Ｒ０のうち、少なくとも更生管２０の内周に現れる上記隣接する巻き部分間の境界１１０からこの境界１１０に最も近い嵌合領域Ｒ１までの特定領域の一部を封止する。【選択図】図７
METHOD AND STRUCTURE FOR REHABILITATING EXISTING WATERWAY STRUCTURE, AND REHABILITATION PIPE FOR EXISTING WATERWAY STRUCTURE
既設水路構造物を更生する方法および構造、ならびに既設水路構造物用の更生管
TSUDA NAOYA (author) / SUGAWARA HIROSHI (author) / ASANO RYOJI (author) / NAMIHANA NAOTO (author)
2018-12-06
Patent
Electronic Resource
Japanese
IPC:
E03F
SEWERS
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