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弓长岭露天矿顺倾断层影响边坡可靠性分析
  • ISSN号:1001-0211
  • 期刊名称:有色金属工程
  • 时间:2013.3.14
  • 页码:62-65
  • 分类:TD854.6[矿业工程—金属矿开采;矿业工程—矿山开采]
  • 作者机构:[1]辽宁科技大学,辽宁鞍山114051, [2]鞍钢集团矿业公司,辽宁鞍山114001, [3]鞍钢矿业设计研究院,辽宁鞍山114004
  • 相关基金:国家自然科学基金重点项目(51034005)
  • 相关项目:大型露天煤矿高陡时效边坡稳定性理论研究
中文摘要:

弓长岭露天铁矿北帮边坡出现了沿顺倾断层大范围整体下滑的迹象,为避免灾难性事故的发生,进行了断层、节理的工程地质调查。考虑到边坡工程中客观存在的诸多不确定性因素,实验研究了岩石与断层泥强度的随机分布参数,运用Monte-Carlo法、Rosenblueth法对剖面1~3边坡的破坏概率进行计算,MonteCarlo法的破坏概率计算结果为0.153~O.969,Rosenblueth法的破坏概率计算结果为0.147~0.919,结果表明均已远远大于可接受破坏概率0.005,说明破坏风险极大,西部长约150m滑体必须立即采取治理措施以确保矿山的生产安全。

英文摘要:

There is a sign of a large scope integral landslide along the consequent fault in the north slope of Gongehangling Open Pit Mine. To avoid any disastrous accident, the engineering geological investigation was carried out to study fault and joint. Considering many objective uncertain factors of slope engineering, the random distribu- tion strength parameter of rock and fault gouge was tested. The slope failure probability was calculated with Monte Carlo method and Rosenblueth method. The failure probability with Monte-Carlo method is 0. 153 ~ 0. 969 of sec- tion 1 ~ 3, and failure probability with Rosenhlueth method is 0. 147~0. 919. The slope failure risk is great because it is far outweigh the acceptable failure probability 0. 005. The western sliding body about 150 m long must be reinforced immediately to ~Harantee the mine nrodnetinn ~nfetv.

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