栗西磷矿开采山体稳定性分析  

Analysis of natural slope failure due to underground mining under the steep hills in Lixi Phosphate Mine

作　　者：李文秀[1] 刘晓敏[1] 

机构地区：[1]河北大学建筑工程学院,河北保定071002

出　　处：《化工矿物与加工》2009年第5期17-19,共3页Industrial Minerals & Processing

基　　金：河北省科技攻关项目(072156142);河北省教育厅科研项目(2007415)

摘　　要：根据山区陡崖地段采矿岩体移动变形的特点,针对栗西磷矿具体情况,将采空区上部每一点所产生的移动变形视为随机事件,由此可将概率积分法理论模型用于高陡山区地下磷矿开采岩体移动变形分析及山体稳定性预测。使用本文所建模型对磷矿开采后岩体移动变形及其对上部地表山体稳定性进行了具体计算和预测分析,提出了安全开采技术方案。It is difficult to calculate the accurate displacement of every point in rock mass because of the complexity of the problem. Instead, various approximate methods have been used for this calculation. In fact, the movement of each point at a level of overburden can be regarded as a stochastic event. In other words, this displacement wiU take place at a probability, and so the probability theory can be applied to describe the displacements and deformations of rock mass. In this paper, the application of the probability integral method to the analysis of the rock mass displacements due to underground mining under the steep hills in Lixi phosphate mine is described. The theoretical results can be applied to mining engineering design of Lixi phosphate mine

关 键 词：地下开采 磷矿 岩体移动变形 自然坡失稳 

分 类 号：TU457[建筑科学—岩土工程]