论文部分内容阅读
滑坡速度预测一直是一个比较复杂的问题。采用潘家铮提出的基于垂直条分的滑速计算方法求解条块的运动速度,并以三峡库区某滑坡为实例,对其滑动加速度及速度进行分析。同时,采用不连续变形分析方法(DDA)对滑坡体的滑动全过程进行了模拟,二者对滑速发展趋势的预测基本吻合,而且DDA模拟较全面地反映了滑坡运动在时间和空间的发展变化特征,清楚地再现了滑坡发生、发展、失稳的全过程,可作为预测滑坡滑速的有效分析方法。
Landslide speed prediction has always been a more complicated issue. The sliding speed calculation method based on the vertical bar proposed by Pan Jiazheng was used to solve the moving speed of the bar, and the sliding acceleration and speed of the landslide in the Three Gorges Reservoir area were analyzed. At the same time, the whole process of landslide sliding is simulated by discontinuous deformation analysis method (DDA), and the prediction of the sliding speed basically coincides with each other. Furthermore, DDA simulation reflects the development of landslide movement in space and time Change characteristics, clearly reproduce the whole process of landslide occurrence, development and instability, which can be used as an effective method to predict landslide slip.