某采掘场滑坡地质灾害综合治理研究
Study on Comprehensive Treatment of Landslide Geological Disaster in a Mining Field

露天矿边坡的稳定性关系到露天矿安全生产，是矿山开釆设计和生产过程中应解决的安全技术问题。针对露天矿边坡的稳定性及治理问题，本文以某采掘滑坡为研究对象，探讨了矿山采掘边坡的形成原因及治理技术，同时评估对比了两种不同的滑坡治理方案。结果表明该滑坡一方面是因为断层破坏，岩石稳固性较差，另一方面由于矿山开发，在采掘工作帮边坡上部导致局部岩土体滑落，造成边坡属于欠稳定至不稳定状态。综合考虑边坡稳定性状态、周边地质环境及开采资源，设计了削坡 + 清运 + 平整 + 修建排水沟和削坡减载 + 清运 + 重力式挡墙 + 修建排水沟两种边坡治理方案，并对其进行了综合评估和比选，确定了兼顾边坡稳定性和下部煤层最大化开采的边坡治理方案。
The stability of the open-pit slope is related to the safety production of open-pit mines, which is a safety technical problem that should be solved in the process of mining design and production. In view of the stability and treatment of open-pit slopes, this paper takes a mining landslide as the research object. The formation reasons and treatment technology of the mining slope were discussed. The results show that, on the one hand, the landslide was caused by fault damage and poor rock stability. On the other hand, due to mine development, local rock and soil mass slips on the upper part of the mining work slope, resulting in the slope being in a state of sub-stability to instability. Considering the slope stability state, surrounding geological environment and mining resources, two slope treatment schemes of cutting slope + clearing transportation + leveling + construction of drainage ditch and cutting slope load reduction + clearing transportation + gravity retaining wall + construction of drainage ditch are designed. The comprehensive evaluation and contrastive selection are carried out. The slope treatment scheme that takes into account the slope stability and the maximum mining of the lower coal seam is determined.