胜利东二号露天矿南帮软岩边坡参数优化及稳定性分析

Parameters optimization and stability analysis of southern weak rock slope in Shengli No.2 Open-pit Coal Mine

为避免胜利东二号露天矿采场推进过程中南帮边坡再次发生大规模滑坡,结合南帮边坡工程地质及横采内排滑坡治理经验对采场南帮边坡参数进行了优化,建立了南排土场南帮典型剖面模型,采用极限平衡法进行了边坡稳定性分析。分析结果表明优化后南帮边坡稳定性是安全可靠的;提出了初期南帮边坡缓帮开采、后期快速横采内排等滑坡防控措施。

In order to avoid another large-scale landslide of southern slope,combining with the engineering geology of southern slope and the landslide control experience of the lateral mining-internal dumping,this article optimizes the parameters of the south slope of the stope,establishes typical profile models of the southern slope,analyzes the slope stability by the limit equilibrium method.The results show that the stability of the southern slope is safe and reliable after optimization.The article puts forward some measures of landslide prevention such as low-angle slope mining at the initial stage and rapidly lateral mining and internal dumping at the later stage.