降雨强度对非饱和土质边坡影响的研究

Study on Influence of Rainfall Intensity on Unsaturated Soil Slope

为研究降雨强度对非饱和土质边坡的影响,基于广州市某地铁车辆段土质边坡为背景,分析了不同降雨强度下边坡滑面位置、孔隙水压力、安全系数的变化规律。结果表明,随着降雨强度的增大,滑面位置变浅、孔隙水压力增大、安全系数减少,边坡支护设计时应考虑降雨强度的影响。

In order to study the influence of rainfall intensity on unsaturated soil slope, based on a soil slope of metro vehicle section in Guangzhou as the background, the change law of slope position, pore water pressure and safety factor of slope under different rainfall intensity is analyzed.The results show that with the increase of rainfall intensity, the location of the slide surface becomes shallow, the pore water pressure increases, and the safety factor decreases.The influence of rainfall intensity should be considered when designing the slope support.