井工露天复合开采边坡稳定性研究  

Study on the Slope Stability under Combination of Open-pit with Underground Mining

作　　者：冯锦艳[1] 朱建明[2] 姚仰平[1] 罗汀[1] 

机构地区：[1]北京航空航天大学交通科学与工程学院 [2]北方工业大学建筑工程学院

出　　处：《金属矿山》2011年第10期75-78,共4页Metal Mine

基　　金：国家自然科学基金项目(编号:11072016)

摘　　要：采用相似材料模拟试验以及数值模拟计算研究了井工露天复合开采条件下边坡的稳定性。通过逐步分析单一井工开采、井工露天复合开采时围岩的破坏模式及变形规律,了解了井工露天复合开采对后期边坡开采的影响和不利条件,在此基础上分析了边坡开采的破坏模式以及破坏机理。计算结果表明设计边坡能够满足整体稳定要求,但上部平台需要加固处理,下部平台需要进行监测以防滑坡事故的发生。The similar material experiment and the numerical simulation calculation were adopted to analyze the slope stability in combining mining of open-pit with underground mining.The failure mode and the law of the rocks displacement are studied when mining in single underground mining and the combining mining of open-pit with underground mining.The effect of the open-pit and underground mining on the post slope mining and the adverse conditions are mastered.Based on this,the failure mode and the failure mechanics of slope mining are analyzed.The simulation result indicates that the designed slope can meet the requirement of slope stability on the whole,but the upper stages need to be reinforced and the lower stages need to be monitored to prevent from landslide.

关 键 词：井工-露天联采 相似材料试验 数值计算 破坏模式 

分 类 号：TD325[矿业工程—矿井建设]