考虑施工因素的弹性杆系有限元修正计算方法

An Modification Procedure on Elastic Bar System FEM Concerning Constructing Factors

本文根据大量现场资料的反分析 ,对常用弹性杆系有限元法中两个重要的参数———主动区土压力与被动区土体水平抗力系数进行了修正 ,可以方便地考虑施工因素 (开挖时间与开挖空间 )对支护结构内力与变形的影响 ,计算结果可靠。

In this paper,the two parameters,active earth pressure and passive resistance coefficient,were modified.so it can be considered conveniently the internal force and deformation of strut caused by constructing factors (excavation time and space).The calculation result is believable.