基坑渗流的数值模拟与分析

Numerical Simulation and Analysis on the Seepage of Foundation Pit

根据渗流场与温度场具有相同控制方程的特点,本文用ANSYS软件的温度场模拟基坑工程的渗流场,用有限元方法对基坑开挖不同工况下的渗流场进行数值模拟计算。分析了地下防渗墙嵌固深度对基坑渗流量和渗透力的影响,用渗流量和渗透力随基坑开挖深度的变化情况,讨论了基坑工程的渗流特性和抗渗透稳定性。

Based on the feature that the same fundamental equation is fit for the seepage field and the temperature field, the seepage field of foundation pit is simulated by the temperature field with the software ANSYS. Different cases of the construction of foundation pit are calculated by using the method of finite element. The influence of the engaged depth of waterproof wall to the seepage discharge and the seepage force, the variation laws of the discharge and the force with the depth of foundation pit are analyzed, and the seepage characteristics of the pit engineering and the waterproof stability are discussed.