【作者】 陈俊生； 莫海鸿； 刘叔灼； 陈平山；

【Author】 CHEN Jun-sheng,MO Hai-hong,LIU Shu-zhuo,CHEN Ping-shan (Dept of Civil Engineering,South China University of Technology,Guangzhou 510640,China)

【机构】 华南理工大学土木工程系；

【摘要】 利用三维有限元法,对某基坑工程的"吊脚桩"加桩间预应力锚索方案进行动态施工全过程数值模拟,重点分析了在基坑施工过程中周围土层及岩层的位移。分析结果表明,该基坑工程采用"吊脚桩"加桩间预应力锚索方案进行施工,土层的位移不大于20 m,岩层位移在1—3 m之间,场地整体稳定性好,不会因基坑开挖导致土层沿岩面整体滑移动,因而该施工方案可行。更多还原

【Abstract】 3D finite element method was used to simulate the entire dynamic construction process of suspended piles and prestress anchor wire between piles of a foundation pit project.The analysis focused on displacement of soil strata and rock strata in the process of construction.The analysis results indicate that,under this construction plan, the displacement of soil strata is less than 20 mm,and the displacement of rock strata is 1—3 mm.The resistance of overturning of ground is appropriate.The soil strata will not slide along the rock surfaces.The construction plan is feasible.更多还原