基于Slope/W软件的边坡稳定性分析研究

Stability Analysis of Slope Based on Slope/W Software

摘要: 山体滑坡给人民生命安全和物质财产造成巨大损失。本文采用slope/w软件运用二维极限平衡法对道路路堑边坡进行分析，通过收集有代表性的土样并运送到实验室来确定输入力学参数，抗剪强度参数由直剪试验和固结不排水三轴试验确定；同时通过现场勘察调研，调查水位位置情况。数值分析过程中，采用Morgenstern-price法计算干燥水位和最高水位条件下路堑边坡的安全系数。结果表明，干燥水位和最高水位条件下路堑边坡的安全系数分别为1.284和0.714；可以看出水位上升将导致边坡安全系数下降，计算结果表明在最高水位情况下，该滑坡处于不稳定状态，需进行必要的加固防护。

Abstract: Landslides have caused huge losses to people’s lives and material property. In this paper, slope/w software is used to analyze the road cut slope with two-dimensional limit equilibrium method. Representative soil samples are collected and sent to the laboratory to determine the input mechanical parameters. Meanwhile, the water level position is investigated through field investigation. Among them, the shear strength parameters are determined by direct shear test and consolidated undrained triaxial test. In the process of numerical analysis, the Morgenstern-price method is used to calculate the safety factor of cut slope under the condition of dry water level and maximum water level. The results show that the safety factors of cut slope under dry water level and maximum water level are 1.284 and 0.714 respectively. It can be seen that the rise of water level will lead to the decline of the safety factor of the slope. The calculation results show that the landslide is in an unstable state at the highest water level, and necessary reinforcement and protection should be carried out.