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为了研究顺坡下行开采对边坡稳定性的影响,基于开采沉陷理论,采用UDEC数值软件研究采动对滑面的影响,并利用变滑面试验台模拟不同采高(0.8、1.2、1.8、2.4 m)下滑面变形对坡体稳定性的影响。结果表明:顺坡下行开采使上部滑面成S型挠曲,坡体出现不同程度的裂缝;且随着开采高度的增加,滑面挠曲程度增大,坡体内部裂缝加宽,坡体整体稳定性急剧降低。
In order to study the effect of downslope mining on the slope stability, based on mining subsidence theory, the influence of mining on the slip surface was studied by UDEC numerical software. The slip surface test rig was used to simulate the different mining heights (0.8, 1.2, 1.8, 2.4 m) the influence of the sliding surface deformation on the slope stability. The results show that the downslope mining on the downslope results in an S-shaped deflection of the upper sliding surface and different degrees of cracks in the slope body. With the increase of mining height, the deflection of the sliding surface increases and the cracks in the slope body widen. The overall stability is drastically reduced.