某露天采场边坡稳定性治理研究  

Study on Slope Stability Control of An Open Pit

作　　者：李小武[1] 施雄斌[1] 冯娟[1] 罗春生 LI Xiaowu;SHI Xiongbin;FENG Juan;LUO Chunsheng(Kunming Engineering&Research Institute of Nonferrous Metallurgy Co.,Ltd.,Kunming 650051,China;Zijin(Xiamen)Engineering Design Co.,Ltd.,Xiamen 430070,China)

机构地区：[1]昆明有色冶金设计研究院股份公司,云南昆明650051 [2]紫金(厦门)工程设计有限公司,福建厦门361000

出　　处：《有色金属设计》2022年第1期6-12,共7页Nonferrous Metals Design

摘　　要：为了研究某露天采场边坡稳定性,结合地层岩性、地质构造及水文地质条件,运用3种不同极限平衡法,针对自重、自重+降雨、自重+地震3种工况,进行稳定性数值计算。结果表明:露天采场边坡最小稳定性系数均>要求的稳定性安全系数,对于同一工况、同一研究对象,3种极限平衡法得到的计算结果较为接近,误差很小,边坡均表现为局部区域的整体稳定问题。最后,为防止边坡事故,减少和控制边坡破坏产生的后果,提出了相应治理和防护方案。In order to study the slope stability of Beichang-Jiayashan open pit in Lanping Lead-Zinc Mine,three different limit equilibrium methods are adopted based on the formation lithology,geological structure and hydrogeological conditions to calculate level of the stability under working conditions of deadweight,deadweight+rainfall and deadweight+earthquake.The results show that the minimum stability coefficient of the open pit slope is greater than the required safety factor,for the same working condition and the same region,the results from the three limit equilibrium methods are relatively close with a tiny margin of error,and the slope features local instability.Finally,relevant treatment and protection schemes are proposed to prevent slope accidents and reduce and control the consequences of slope failure.

关 键 词：岩质边坡 稳定性分析 极限平衡法 治理和防护方案 

分 类 号：TD804[矿业工程—矿山开采]