碎石土边坡稳定性及影响因素的数值模拟研究

摘要

Combined with practiced engineering, adopting the analytic way of elasto-plastic FDM shear strength reduction, the safety coefficient of the gravel soil slope was calculate by the numerical simulation and compared with the traditional analysis method. The influencing on the slope stability of the soil properties and calculation model parameters was analyzed and researched. The results indicated,FLAC3D analysis software has a good advantage on analysising slope stability feasible, cohesion, internal friction angle and density of soil are significant impact on slope stability.%结合工程实例,采用有限差分强度折减法对碎石土边坡进行稳定性数值模拟求得安全系数,并与传统分析方法进行计算比较.同时,分析边坡土性及计算模型参数对稳定性的影响.结果表明,FLAC3D分析边坡的稳定性可行且具有较好的优越性,内聚力、内摩擦角及土体密度对边坡稳定性的影响更加显著.