耿村煤矿深部开采冲击地压防治技术研究  

Study on Prevention Technology of Rock Burst in Deep Mining of Gengcun Coal Mine

作　　者：马智勇 

机构地区：[1]成都理工大学,地质灾害防治与地质环境保护国家重点实验室,四川 成都 [2]中煤科工集团重庆研究院有限公司,重庆

出　　处：《地球科学前沿（汉斯）》2020年第7期659-668,共10页Advances in Geosciences

摘　　要：冲击地压是煤矿重大地质灾害之一。本文以耿村煤矿为例,在已有对冲击地压研究的基础上,通过数值模拟、室内试验以及现场监测等手段,分析耿村煤矿工作面采动下岩体应力变化以及覆岩运动的规律,并结合多种监测方法对耿村煤矿深部开采冲击地压进行监测预警,采取合理的防治技术来避免或降低冲击地压带来的危害。研究表明,耿村煤矿冲击地压的发生与开采导致应力集中有很大的关系,并且受到临近F16断层的影响,使得耿村煤矿冲击地压属于在F16巨型逆冲断层控制下,高应力、大范围、区域性的顶底板型冲击,其失稳模式为底板型失稳,形成了对耿村煤矿深部开采冲击地压的监测防治系统,在多种监测手段配合的情况下,预测冲击地压的发生,并针对此,采取合理的技术进行防治,将灾害影响降到最低。煤矿深部开采冲击地压是一个复杂的系统工程,对耿村煤矿深部开采冲击地压的研究成果可以为该类型的研究提供参考。Rock burst is one of the major geological hazards in coal mines. Based on the study of rock burst, this paper analyses the variation of rock mass stress and overburden movement under mining in Gengcun Coal Mine by means of numerical simulation, laboratory test and on-site monitoring, and combines various monitoring methods. Monitoring and early warning of rock burst in deep mining of Gengcun Coal Mine is carried out in order to adopt reasonable prevention and control technology to avoid or reduce the harm caused by rock burst. The research shows that the occurrence of rock burst is closely related to the stress concentration caused by mining, and is affected by the nearby fault F16, which makes the rock burst belong to the roof-floor type impacted under the control of the huge thrust fault F16, with high stress, large scale and region, and its instability mode is floor type instability. The monitoring and prevention system of rock burst in deep mining of Gengcun Coal Mine has been formed. The occurrence of rock burst is predicted under the cooperation of various monitoring means, and reasonable technology is adopted to prevent and control rock burst, so as to minimize the impact of disasters. Rock burst in deep mining of coal mine is a complex system engineering. The research results of rock burst in deep mining of Gengcun Coal Mine can provide reference for this type of research.

关 键 词：深部开采 冲击地压 监测预警 防治技术 

分 类 号：TD3[矿业工程—矿井建设]