基于FLAC^2D的毛细水作用下某尾矿坝静力稳定性分析

Static Stability Analysis of Certain Tailings Dam by the Action of Capillary Water Based on FLAC^2D

尾矿坝的静力稳定性受到所处各方面环境因素的影响,毛细水作用也是其中一个重要因素之一,因此采用FLAC^2D对该尾矿坝在考虑毛细水作用和不考虑毛细水作用两种情况进行数值模拟,分别绘制出两种情况下的X、Y方向位移云图,主应力变化云图、剪应变增量变化云图,并计算得到两种状况下的安全系数,发现在考虑毛细水作用时尾矿坝的静力稳定性会有所降低,安全系数也降低了3.5%,分析结果为指导尾矿库安全运行提供了科学依据。

The static stability of the tailing dam by the influence of environmental factors in various aspects,Capillary water is also one of the important factor,So For the tailings dam Using FLAC^2D numerical simulation by the action of capillary water and Regardless of the capillary water.To draw out the two cases of X and Y direction displacement contours,Cloud principal stress changes,Shear stress cloud image edge incremental change.And to calculate the safety factor of the two conditions,Found in considering capillary effect of the static stability of the tailings dam when the water will be reduced,Safety factor is reduced by 3.5%.The analysis results Provides a scientific basis for The safe operation of the tailings dam.