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Analysis of the Influence of Underpass Shield of Wuhan Yangtze River Tunnel on Settlement of Wuhan-Jiujiang Railway |
JIDa-xue |
China Railway Siyuan Survey and DesignGroup Co., Ltd., Wuhan, Hubei 430063, China |
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Abstract Research purposes: The surrounding engineering environment of Wuhan Yangtze River Tunnel is complicated, and the shield under-passing the existingWuhan -Jiujiang Railway is one of the difficult points in the project. For accurate analysis of the settlement of the railway caused by the shield underpass, this paper calculates the influence of the shield driving on the settlement of Wuhan -Jiujiang Railway with the classical Peck Method and finite elementmethod respectively and introduces the protective measures taken in the construction and the onsite monitoring situation to provide the reference to the similar projects.
Research conclusions:The on site monitoring resultof the settlement is greater than the calculation resul,t butitdoesnot affect the traffic safety of the railway. Due to the impact of train operation, the trough width and depth of surface settlementcaused by the under-passing railway are both greater than those of the adjacentPeace Road.
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Received: 01 July 2009
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