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坡顶附加荷载是边坡失稳的一个极其重要的诱发因素。采用Geo-Studio分析软件,在不同荷载大小、不同作用位置以及不同的荷载作用长度三种情况下对边坡的稳定性进行对比分析。研究发现,对于不同的荷载大小,荷载边界距离坡顶边界约5m以上为安全范围。当荷载边界移至距坡顶边界5m范围以内时,边坡的安全系数出现骤降,荷载越大,安全系数降幅就越大。对于同一荷载大小,荷载作用长度对边坡的稳定影响不显著,荷载边界距坡顶边界始终为约5m以上的安全范围。对于工程上路堤填方,坡顶临时堆放材料以及新建构筑物等工程的实施具有极其重要的参考价值。
Additional load at the top of a slope is an extremely important predictor of slope failure. Geo-Studio analysis software was used to analyze the stability of slopes under three different load sizes, different acting positions and different load acting lengths. The study found that, for different load sizes, the load boundary is about 5m above the top of the top of the hill as a safety margin. When the load boundary is moved within 5m from the top of the slope, the safety factor of the slope will dip sharply. The bigger the load, the greater the decrease of the safety factor. For the same load size, the effect of load length on slope stability is insignificant, and the load boundary is always about 5m above the top boundary of the slope. It is of extremely important reference value for the embankment filling in the project, temporary stacking materials on the top of slope and the construction of new structures.