大孤山铁矿边帮运输巷道破坏机理研究  

Research on Failure Mechanism of the Slope Transportation Tunnel of Dagushan Iron Mine

作　　者：张宝才[1] 刘树森 陈庆丰[3] 赵洪宝[3] 柳峥[3] 

机构地区：[1]鞍钢集团矿业公司大孤山铁矿,辽宁鞍山114006 [2]黑龙江多宝山铜业股份有限公司,黑龙江黑河161416 [3]中国矿业大学力学与建筑工程程学院,北京100083

出　　处：《采矿与安全工程学报》2011年第1期148-152,共5页Journal of Mining & Safety Engineering

基　　金：国家自然科学基金重点项目(51034005);国家"十一五"科技支撑计划项目(2009BAK54B03)

摘　　要：露天矿边帮巷道的变形破坏与边坡稳定性、巷道的空间位置和围岩性质等因素直接相关.针对鞍钢集团大孤山露天铁矿边帮巷道衬砌开裂的现象,利用地质雷达对裂缝开裂处的巷道围岩进行了破坏深度的探测,获得了巷道衬砌裂缝开裂处围岩破坏程度.分析了巷道的空间位置和边坡稳定性对巷道变形破坏的影响程度.结果表明:大孤山露天铁矿巷道衬砌开裂的机理主要是巷道围岩病害所致,而非整体边坡的滑动所致,为巷道的治理提供了科学依据.The deformation and failure of the slope tunnel is directly related to the slope stability,the spatial location of the tunnel,and the mechanical parameters of surrounding rock mass.Based on the cracks of the transportation tunnel in Dagushan Iron Mine,the failure depth of cracks in the surrounding rock mass was measured by geological radar in this paper.The failure level of the surrounding rock mass in every crack is obtained,and the spatial location of the tunnel and slope stability on the influence of deformation and failure of tunnel analyzed.The results show that the cracking mechanism of Dagushan Iron Mine tunnel lining is mainly caused by the defect of the tunnel surrounding rock,rather than the slide of the overall slope,in order to provide scientific basis for the tunnel management.

关 键 词：边帮巷道 变形破坏 衬砌开裂 地质雷达 

分 类 号：TD854[矿业工程—金属矿开采]