基于有限元原理对建筑基坑边坡支护稳定性的计算研究

Stability calculation of slope support in building foundation pit based on finite element theory

选取某一实际护坡支护工程进行有限元建模,并采用MATLAB8.0软件以及ANSYS9.0软件找到滑裂面,计算出滑裂面上切应力的数值以及最大切应力的作用位置,再通过有限元法计算出边坡支护稳定性安全系数,并与传统方法计算得出的安全系数进行对比。结果显示:有限元法计算得出的安全系数较大,且几种方法的安全系数变化趋势是相同的。

Based on a practical slope supporting engineering for finite element modeling,we applied MATLAB8. 0 software and ANSYS9. 0 software to found slip surface,calculated slip surface shear force value and maximum shear force position. Then,calculated supporting the stability of the slope safety coefficient by the finite element method,and compared with the traditional method. The results showed that the safety factor calculated by the finite element method was larger,and the change trend of the safety factor of several methods was the same.