深水河大桥桥墩边坡稳定性分析

深水河大桥桥墩边坡地处广乐高速深水河大桥段,其稳定性直接关系着桥墩桩基工程能否顺利施工和整段广乐高速的工程进度。本文采用定性分析和定量计算的方法对深水河大桥桥墩边坡稳定性进行了分析,定性分析主要是通过赤平投影法作图初步分析边坡局部可能出现的组合滑面破坏模式,再取典型的楔形体进行破坏模式分析,定量计算主要是采用Bishop法分别计算该边坡在不同工况下的稳定系数,从而对该边坡的整体稳定性进行评价,以便提出相应的治理措施。

Stability Analysis of the Pier Slope of Shenshui River Bridge

Shenshui River Bridge slope is located in Shenshui River Bridge region of Guang-Le Expressway.The stability of the slope is directly related to whether the pier pile foundation engineering and the project progress of the whole region of Guang-Le Expressway will be constructed successfully or not.This paper applies qualitative analysis and quantitative calculation method respectively to the analysis of its stability.Qualitative analysis primarily analyzes the possible combinations of the failure mode of slope slide surface mainly through the stereographic projection,and then takes the typical wedge for the analysis of the failure mode.Quantitative calculation uses Bishop method to verify the slope stability coefficients respectively under different working conditions,and offers the corresponding treatments.