滑坡会对工程结构物造成严重破坏，滑移速度和距离是量化和分析滑坡的两个重要参数。针对滑移速度和距离预测一直比较复杂的现状，建立考虑土体固结和侵蚀效应的控制方程，选用摩擦流变模型，采用SPH深度积分算法，对滑坡进行了模拟研究。对比不同坡度、接触摩擦系数和侵蚀率条件下的滑移体速度、长度的时程曲线，分析不同条件下滑移体的最终沉积形态，整理了最大滑移距离和速度，讨论其变化规律。研究成果可为滑坡灾害预警提供技术参考。%Landslides can cause serious damages to the structure of the engineering ,sliding velocity and distance are two important parameters in the quantification and analysis of landslides .However ,the existing prediction method of sliding velocity and distance is complicated .In view of this situation ,a governing equation was established considering soil con-solidation and erosion effect .The SPH depth integral method was used to simulate landslides by the selected frictional rheological model .Comparing the time history curve of velocity ,length of sliding body under the different conditions of slope angle ,contact frictional coefficient and erosion rate ,the final deposit shapes of the sliding body were analyzed ,the maximum sliding distance and velocity were summarized and the underlying influence of related physical parameters were discussed .These research results can provide some technical reference for the disaster warning of landslides .
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