标题：Deformation Pattern of Foundation Pit Excavation beside Silt Soil Railway Subgrade
作者：He, Fangding; Guo, Guangjun; Zang, Yanan
作者机构：[He, Fangding] Hydraul Res Inst Shandong Prov, Jinan 250014, Peoples R China.; [Guo, Guangjun] Dept Water Resources Shandong Prov, Jinan 250014, Peo 更多
会议名称：Global Conference on Civil, Structural and Environmental Engineering / 3rd International Symp on Multi-field Coupling Theory of Rock and Soil Media and its Applications
会议日期：OCT 20-21, 2012
来源：ADVANCES IN INDUSTRIAL AND CIVIL ENGINEERING, PTS 1-4
关键词：Silt soil area; Subgrade overload; Train's vibrating load; Foundation; pit seepage; deformation pattern
摘要：Foundation pit excavation beside silt soil railway subgrade in the water net plain district is influenced by overload of backfilled roadbed, train's vibrating load and high groundwater level, so foundation pit instability occurs easily. Numerical simulation is done on several parameters such as different depths of pit cutting, distances from subgrade, speeds of the train, and so on. Through analyzing changes and impact ranges of the pore pressure and displacement under various work conditions, it reveals lateral deformation mechanism of the foundation pit. And also it provides references for supporting design of foundation pit beside silt soil subgrade.