冲击地压的三参量能量致冲准则及多场监测预警和动态防治技术  

Rock burst energy criterion with three parameters and multi-field monitoring,early warning,and dynamic control and prevention

作　　者：王桂峰[1] 刘阳[1] 曹安业[1,2] 窦林名[1] 巩思园[1] 蔡武[1] 袁晓园 李庚 WANG Guifeng;LIU Yang;CAO Anye;DOU Linming;GONG Siyuan;CAI Wu;YUAN Xiaoyuan;LI Geng(State Key Laboratory of Coal Resources and Safe Mining,School of Mines,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China;Jiangsu Engineering Laboratory of Mine Earthquake Monitoring and Prevention,Xuzhou,Jiangsu 221116,China;Department of Information Technology,Jiangsu Xuzhou Higher Vocational School of Economics and Trading,Xuzhou,Jiangsu 221116,China)

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,矿业工程学院,江苏徐州221116 [2]中国矿业大学江苏省矿山地震监测工程实验室,江苏徐州221116 [3]江苏经贸职业技术学院信息技术系,江苏徐州221116

出　　处：《采矿与安全工程学报》2021年第5期895-901,共7页Journal of Mining & Safety Engineering

基　　金：国家重点研发计划项目(2020YFB1314203,2020YFB1314204);国家自然科学基金项目(51504248,51404269);江苏省自然科学基金项目(BK20140194);江苏省重点研发计划项目(BE2015040);江苏高校优势学科建设工程项目(SZBF2011-6-B35)。

摘　　要：针对目前冲击地压监测分析、预警能力不足,难以确定危险区域及其演变趋势,不能开展针对性的卸压工程,导致冲击地压频繁发生实际问题。从能量角度研究冲击地压产生机制,提出冲击地压的三参量能量致冲准则,分析能量场和应力场耦合监测预警原理,建立基于多场耦合监测的危险性评价和防冲技术,开展采掘过程中动态监测和调控防冲实践,进行了效果验证。研究表明:冲击地压发生的累积不稳定能量E、压制能力RE、启动扰动强度DI等3个参量相互联系、协调作用而诱发冲击地压,累积足够的不稳定能量E是冲击孕育的首要条件。应力场CT反演和能量场密度空间解析技术的结合,可以有效识别不稳定能量E的积聚过程,共同形成冲击地压危险区域精准识别关键技术,进而可以根据危险区域识别结果实施针对性卸压、解危措施,阻断不稳定能量E的积聚过程,防止其超过临界值E0。工程应用表明,冲击地压的多场耦合监测预警与动态防治技术的应用,有效避免了监测与治理的盲目性,取得了很好的防冲效果,为探索冲击地压内在机制及其预警理论和方法提供了新思路、新方法。In view of the lack of effective monitoring analysis and early warning for rock burst which causes difficult identification of hazardous areas,undevelopable targeted pressure relief engineering,and frequent occurrence of rock bursts,energy criterion with three parameters was proposed to reveal the rock burst mechanism,the principle of energy field and stress field coupling monitoring was analyzed,rock burst hazard assessment and prevention based on multi-field coupling monitoring was established,practice of dynamic monitoring and regulating prevention of rock bursts was carried out in coal mines with verified effect.The results have shown three parameters of repressive power RE,unstable energy E,and initial startup disturbance DI interact and depend on each other,working together to generate the rock burst with sufficient accumulated unstable energy E as the primary condition for rock burst impact.The combination of CT tomography of stress field and spatial analysis of energy density field effectively identify the accumulation process of unstable energy E,thus forming the key technology for accurately identifying hazardous areas.According to the results of hazardous area identification,targeted stress-relief measures can be implemented to block the accumulation process of unstable energy E and prevent it from exceeding the critical value E0.Engineering application of multi-field coupling monitoring and dynamic control technology effectively avoided the blindness of rock burst monitoring and control.The research provides new ideas and methods for exploring rock burst mechanism and early warning theory and method.

关 键 词：冲击地压 多场监测预警 危险区域识别 动态调控 

分 类 号：P631[天文地球—地质矿产勘探]