TIMBERING CONNECTION STRUCTURE AND METHOD IN WIDENING TUNNEL
PROBLEM TO BE SOLVED: To connect timbering even when the pitch to be installed as timbering of a new tunnel is different from the arranged position or disposed pitch of existing timbering in tunnel widening construction work using the timbering of the existing tunnel. SOLUTION: A fixing member 9 is...
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Main Authors | , , , , , , , , , |
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Format | Patent |
Language | English |
Published |
25.03.2004
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To connect timbering even when the pitch to be installed as timbering of a new tunnel is different from the arranged position or disposed pitch of existing timbering in tunnel widening construction work using the timbering of the existing tunnel. SOLUTION: A fixing member 9 is fitted to the end part of each existing timbering 1a extending in the circumferential direction of the tunnel, positioned at a broken out section 1c in widening the tunnel, and a multi-divided connecting member 8 extending in the depth direction of the tunnel is connected to each fixing member 9. The new timbering 3 extending in the circumferential direction of the tunnel is connected to the connecting member 8. COPYRIGHT: (C)2004,JPO |
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Bibliography: | Application Number: JP20020251913 |