发明名称 |
JOINING METHOD FOR SHIELD, AND STRUCTURE OF ARRIVAL PROTECTIVE BARRIER |
摘要 |
PROBLEM TO BE SOLVED: To provide a joining method for a shield which can surely prevent the intrusion of underground water when a new shield tunnel is joined to an arrival pit mouth of an existing pipe or a vertical shaft in a direction crossing the arrival pit mouth of the existing pipe or the vertical shaft, and a structure of an arrival protective barrier. SOLUTION: A steel tubular body 13 through which a cutting reinforcing ring 22 passes is installed on the outer peripheral side in a position to be cut by the cutting reinforcing ring 22 of a shield machine 20 of the existing tunnel 10, so that cut-off material injection holes 14 can be formed in a plurality of places around the tubular body 13. A plurality of U-shaped pipes 15 for injecting cut-off materials are arranged on the inner peripheral side of the tubular body 13. After that, the tubular body 13 is closed with a lid body 16 and held by a support 17; a filling material such as concrete is infilled into the tubular material 13, so that a filling material layer 18 can be formed for the construction of the arrival protective barrier; and the cut-off material is injected into the periphery of the cutting reinforcing ring 22 from the inside and outside of the existing tunnel 10 in jointing with a newly constructed tunnel 20T. COPYRIGHT: (C)2005,JPO&NCIPI
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申请公布号 |
JP2005120699(A) |
申请公布日期 |
2005.05.12 |
申请号 |
JP20030356668 |
申请日期 |
2003.10.16 |
申请人 |
KUMAGAI GUMI CO LTD;PENTA OCEAN CONSTR CO LTD;SHIMIZU CORP;TOKYU CONSTRUCTION CO LTD;NISHIMATSU CONSTR CO LTD;HAZAMA CORP |
发明人 |
YAMAMORI NORIYASU;KIDO YOSHIKAZU |
分类号 |
E21D9/06;(IPC1-7):E21D9/06 |
主分类号 |
E21D9/06 |
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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