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本文对某矿3号脉露天采场边坡稳定性的几个问题进行了探讨。对边坡地质特征进行了调查和描述,对露天采场边坡已经发生的滑坡和潜在的滑坡类型。机理进行了分析,并指出这些滑坡类型对露天采场不会构成严重威胁。对边坡稳定程度进行了定性和定量分析计算,结果表明:露天采场边坡是稳定的,而且最终边坡角明显的编于保守。在此基础上对露天采场合理的边坡角和其它结构参数进行了研究,提出了改善露天采场边坡角的建议:西帮边坡可增加6度,东帮边坡可增加10度。大约可减少剥离一百万米~3以上,节约剥离费近千万元。其经济效果是十分明显的,(对比82年可行性研究报告圈定的境界)。
In this paper, some problems of the slope stability of No.3 pulse velum in a mine are discussed. Geological features of the slope were investigated and described, and the landslides and potential landslide types that have occurred in the open pit slope were investigated. Mechanism was analyzed and pointed out that these types of landslides will not pose a serious threat to open pit mining. The stability of slope is qualitatively and quantitatively analyzed and calculated. The results show that the slope of open pit is stable and the slope angle is obviously conservative. On this basis, the reasonable slope angle and other structural parameters of open pit are studied, and some suggestions to improve the slope angle of open pit are put forward: west slope can increase 6 degrees and east slope can increase 10 degrees . About a million meters can be stripped to reduce more than 3, saving nearly 10 million yuan stripping costs. Its economic effect is very obvious (compared with the delineation of the 82-year feasibility study report).