This paper is devoted to improve the containment capacity of the Hesgoula south dumping site. The general geology of the dumping site was obtained through geological surveys. Physico-mechanical properties of silty clay and bedrock layers that have a large impact on the stability of the dump were measured by direct shear tests and triaxial tests in laboratory. Then ultimate bearing capacity of the substrate were analyzed and calculated. This paper proposed three capacity expansion and increase plans and used GeoStudio software for comparison. Through computation of the stability of the dump site slope after capacity expansion and increase for each plan, the capacity expansion plan was determined. The capacity expansion and increase plan will solve the problem of the current insufficient containment capacity of the Hesgoula south dumping site, which is of great significance for saving mine transportation costs, improving work efficiency, and reducing grassland occupation.

本文致力于提高Hesgoula南部倾倒场的围堵能力。倾倒场的总体地质状况是通过地质调查获得的。在实验室中，通过直接剪切试验和三轴试验测量了粉尘粘土和基岩层对排土场稳定性有很大影响的物理力学性能。然后分析并计算基材的极限承载力。本文提出了三种容量扩展和增加计划，并使用了GeoStudio软件进行比较。通过计算每个计划的扩容和增加后倾倒场边坡的稳定性，确定了扩容计划。容量扩充和增加计划将解决Hesgoula南部倾倒场目前的围堵能力不足的问题，