深部沿空掘巷围岩塑性区分布数值模拟研究  

Numerical Simulation Research of Plastic Zone in Surrounding Rock for Gateway Driving Along Goaf in Deep Mine

作　　者：邹长磊[1] 周钢[1] 赵国庆[1] 秦宝华[1] 

机构地区：[1]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州市221008

出　　处：《矿业研究与开发》2012年第4期29-31,共3页Mining Research and Development

基　　金：国家自然科学基金项目(50774082)

摘　　要：根据陈四楼煤矿工程地质条件,采用数值模拟方法研究不同开采深度、不同支护强度条件下沿空送巷围岩变形和塑性区分布规律,并分析了不同支护强度对围岩变形的控制作用,指出巷道的两帮是支护重点和难点,应当采用全长锚固锚杆支护才能满足围岩变形的要求,就深部开采回采巷道的支护提出了一些具体的技术措施。According to the engineering geological conditions in Chensilou mine, the surrounding rock deformation and plastic zone distribution for gateway driving along goaf under different mining depths and different supporting strength were studied by use of numerical simulation. The controlling effect of support with different strength on the deformation of surrounding rock was analyzed. It was pointed out that the support of roadway＇s sides war the emphasis and difficulty, full length anchoring bolt should be adopted to meet the requirements of surrounding rock deformation. Some technical measures for support of mining roadway in deep mining were proposed.

关 键 词：沿空掘巷 塑性区 变形规律 数值模拟 

分 类 号：TD322[矿业工程—矿井建设]