桩锚体系m法和三维有限元法比较与分析

桩锚体系支护结构计算方法很多,m 法和三维有限元法在近年来的支护结构设计中使用最多.文章简述了m法和三维有限元法,以衡阳市某平面形状复杂基坑支护结构为例,分别以m法以及三维有限元法对该基坑支护结构东面侧壁进行了支护体系的不同开挖工况下的内力和位移进行了计算,分析比较了这两种计算结果,最后确定以三维有限元计算结果进行支护桩的配筋和锚杆的计算,取得良好效果,说明有限元法有广阔的的发展前景.

Analysis and Comparison of Pile Anchorage System in the law of m and Three-Dimensional Finite Element Method

Among the several methods of calculation for pile-anchorage system,the law of m and three-dimensional finite element method are appied recently to design retaining structure as the preferred methods.The article indicate m method and 3D FEM and the retaining structureo of the complicated planar foundation pit in HengYang,and get the internal force results and displacement by these methods in different excavation condition for the eastern side of foundation pit.Results of 3D FEM is adopted to design reinforcement for bracing pile and soil anchor on the base of analysis and comparison between these results and obtain good effect,which indicate 3D FEM is of high potentiality.