乌审旗典型工作面停复采冲击危险性分析与防治  

Hazard analysis and prevention of rock burst in the process of stoping and resuming mining of typical working faces in Uxin Banner of Inner Mongolia

作　　者：刘毅涛 王颜亮 曲效成 刘文涛 魏全德 董亚东 张松林 韩亮[5] LIU Yi-tao;WANG Yan-liang;QU Xiao-cheng;LIU Wen-tao;WEI Quan-de;DONG Ya-dong;ZHANG Song-lin;HAN Liang(Ordos Yihua Mining Resources Co.,Ltd.,Ordos 017000,China;Beijing Anke Xingye Science and Technology Company Limited,Beijing 100083,China;China Coal Energy Research Institute Co.,Ltd.,Xi’an 710054,China;Beijing Anke Xingye Research Institute Company Limited of Mine Safety Technology,Beijing 102299,China;Safety Engineering College,North China Institute of Science and Technology,Beijng 101601,China)

机构地区：[1]鄂尔多斯伊化矿业资源有限责任公司,内蒙古鄂尔多斯017000 [2]北京安科兴业科技股份有限公司,北京100083 [3]中煤能源研究院有限责任公司,陕西西安710054 [4]北京安科兴业矿山安全技术研究院有限公司,北京102299 [5]华北科技学院安全工程学院,北京101601

出　　处：《煤炭工程》2021年第4期66-70,共5页Coal Engineering

基　　金：国家重点研发计划资助项目(2016YFC0801408);山东省重大科技创新工程项目(2019SDZY02);中央高校基本科研业务费项目(3142017092)。

摘　　要：以母杜柴登煤矿30202工作面为工程背景,对工作面停复采期间的矿压监测数据进行分析,分析了工作面停复采前后矿压显现规律,提出了停复采过程中冲击地压防治的关键技术。分析结果表明:工作面停采后,微震事件能量及频次明显降低,煤层应力及支架阻力数据明显增大;工作面复采后,震动场活动强度整体经历"突增—降低—小幅增高"三个阶段;工作面复采初期前40刀(约35m)为冲击地压防治的关键区域;提出了停复采期间"应力预警-险情钻检确认-卸压解危-解危效果验证"为主要内容的冲击地压危险区处理流程,30202工作面实践效果良好,可为乌审旗地区相似条件工作面停复采期间的冲击地压防治提供借鉴。Based on the background of 30202 working face in Muduchaideng Coal Mine,the monitoring data of ground pressure in the process of stopping and resuming mining of typical working faces in Uxin Banner are analyzed,and the law of ground pressure behavior before and after stopping and resuming mining is studied. Finally,the key technologies of rock burst prevention and control in the process of stopping and resuming mining are summarized. The analysis shows that: after stopping,the energy and frequency of microseismic events significantly reduces,and the data of coal seam stress and support resistance significantly increases;after resuming mining,the activity intensity of vibration field goes through sudden increase to decrease and finally to small increase;in the initial stage of resuming mining,the first 40 cuts( about 35 m) are the key areas for rock burst prevention and control;the work-flow of rock burst hazard area treatment is proposed,comprising early warning,drilling and inspection confirmation of dangerous situation,pressure and danger relief,effect verification,which worked well in 30202 working face. The study can guide the prevention and treatment of rock burst in mining face with similar conditions.

关 键 词：乌审旗地区 冲击地压 停复采 监测数据分析 

分 类 号：TD713[矿业工程—矿井通风与安全]