An analytical solution for displacement and stress caused by shallow buried tunnel excavation under existing highway foundation

被引：0
|
作者：
Ai, Chuan-Zhi [1 ,2 ]
Wang, Zhi-Yin [3 ]
机构：
[1] Postdoctoral Center of China University of Petroleum, Beijing 102249, China
[2] CNOOC Beijing Research Center, Beijing 100027, China
[3] Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing 102249, China
来源：
Yantu Lixue/Rock and Soil Mechanics | 2010年 / 31卷 / 02期
关键词：
Settlement of structures - Tunnels - Tunneling (excavation);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Excavation under existing highway foundation will cause ground displacement and ground settlement. In order to control the ground settlement during excavating, it is important to solve out the ground displacement and stress quickly and accurately for design and construction. Based on image method and injected with equivalent layer method, the analytical solution of ground displacement and stress caused by shallow buried circular tunnel excavation under existing highway foundation is deduced. The result indicates that the ground displacement and stress law gained through this new solution can reflect the special transfer effect of settlement and stress via the upper harder highway foundation. The displacement and stress at any position in the highway foundation and the substratum and ground settlement can be gained through this solution, so as to provide a new analytical method for the calculation of ground displacement and ground settlement caused by circular tunnel excavation in double-layer ground material.
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页码：541 / 546
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