发明名称 |
Manhole structure, flexible water shut off joint for manhole structure and method for installing manhole structure |
摘要 |
There is provided a manhole structure 1 formed by joining a cast-in-place concrete manhole wall 2 to a pipe 3. In the manhole structure 1, the pipe 3 is driven and laid in a vertical shaft 4, and a flexible cut-off joint 5 for manhole is disposed on an outer periphery of the pipe 3. The flexible cut-off joint 5 for manhole comprises a rigid cylindrical body 6 and a tubular flexible body 7 located at an inside of the cylindrical body 6 in a space between the cylindrical body and the pipe, and the tubular flexible body 7 is made of an elastic body. An end 7 a of the tubular flexible body 7 is press-fixed to an inner surface of the cylindrical body 6 with an expansion band 8, and the other end 7 b of the tubular flexible body 7 is press-fixed to an outer periphery of the pipe 3 by tightening with a fastening band 9. The manhole wall 2 is formed by pouring a concrete on the outer periphery of the cylindrical body 6. The tubular flexible body 7 in the manhole structure 1 absorbs an expansion-contraction displacement, a bending displacement, a shearing displacement and the like between the manhole wall 2 and the pipe 3 without applying a load to the pipe 3.
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申请公布号 |
US2005126087(A1) |
申请公布日期 |
2005.06.16 |
申请号 |
US20040487908 |
申请日期 |
2004.10.04 |
申请人 |
HAYAKAWA RUBBER COMPANY LIMITED |
发明人 |
MONDEN FUMIO;SUZUKI HIDEICHI;SUYAMA SATOSHI |
分类号 |
E02D29/12;(IPC1-7):E02D1/00 |
主分类号 |
E02D29/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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