软岩地层深部铁矿非充分开采下沉分析模型  

Model of Analysis for Ground Subsidence Due to Deep Sub-critical Mining of Iron Ore-deposit in Soft Rock Strata

作　　者：李文秀[1] 刘琳[1] 王山山[1] 孟庆立[1] 

机构地区：[1]河北大学建筑工程学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2011年第5期462-468,共7页Journal of Hebei University(Natural Science Edition)

基　　金：河北省自然科学基金资助项目(E2011201114)

摘　　要：根据大量采矿工程实际资料统计分析,给出了深部铁矿非充分开采地表下沉预测分析的随机介质理论方法.并利用该方法对中国小官庄地下矿山深部非充分开采引起的地表下沉进行了具体的分析,所获理论结果符合工程实际,表明所给出的理论方法可有效地用于预测分析软岩地层深部非充分开采地表下沉问题.Based on results of the statistical analysis of a large amount of measured data in mining engineering,the theoretical model for analysis of ground subsidence due to deep sub-critical mining of iron ore-deposit is established by using the theory of stochastic medium.The formulas of two-dimensional and three-dimensional problems are developed and applied to the prediction of the ground subsidence due to deep sub-critical mining by pillarless sublevel caving method.The agreement of the theoretical results with the field measurements shows that the model is satisfactory and the formulae obtained are valid and thus can be effectively used for predicting the ground subsidence due to deep sub-critical mining of iron ore-deposit.

关 键 词：软岩 铁矿 非充分开采 地表下沉 随机介质理论 

分 类 号：TU457[建筑科学—岩土工程]