边坡效应对桥梁桩基稳定性的影响分析

Analysis of the influence of slope effect on the stability of bridge pile foundation

采用正交设计试验的方法,利用FLAC3D软件进行数值模拟,对比分析不同荷载组合、坡度、岩土性质和各层岩层厚度下边坡对于桥梁桩基的内力和位移的影响,通过对所有模拟结果的综合方差分析,得出四个因素中荷载组合对桩基的水平位移影响最大,相对显著,而其余三个因素对桩基的水平位移影响都不太明显。

In this paper,using the method of orthogonal design test and FLAC3D for numerical simulation,the influence of different load combination,slope,geotechnical properties and the thickness of each layer of rock layer on the internal force and displacement of bridge pile foundation is compared and analyzed.Through the comprehensive variance analysis of all simulation results,it is concluded that the load combination has the greatest influence on the horizontal displacement of pile foundation,which is relatively significant,the other three factors have little effect on the horizontal displacement of pile foundation.