摘要
Ⅲ3煤层二采区是宣东煤矿的主采区,但是由于开采深度大、煤层赋存条件复杂、瓦斯含量高等原因,具有发生冲击地压的危险性。以Ⅲ3煤层二采区为例,从冲击地压的动力来源、释放介质、诱发因素三要素对发生冲击地压的危险性进行了分析,结果表明具有很高的冲击危险性。总结提出了冲击地压的防治三原则,在此基础上提出了有针对性的防治措施,并采用微震法和银屑法检验监测效果。生产实践表明,采取的措施对防治冲击地压的效果良好。
The NO. 2 mining area of Ⅲ3 coal seam was the main mining area of Xuandong Coal Mine, but it had the risk of rock burst because of the large mining depth, the complex coal seam occurrence condition, high gas content and other factors,. Taking NO. 2 mining area of Ⅲ 3 coal seam as an example, it analyzed the risk of rock burst from the power source of rock burst, release medium, inducing factors, the results showed that it had high risk of rock burst. It summarized and put forward the three principles of controlling rock burst, based on this, it proposed the targeted prevention and control measures, and the micro seismic and drilling cuttings were used to check out the monitoring results. The practices pruved that these measures had good effect to control rock burst.
出处
《煤矿安全》
CAS
北大核心
2014年第6期124-127,共4页
Safety in Coal Mines
基金
国家重点基础研究发展计划(973计划)资助项目(2013CB227903)
国家自然科学基金资助项目(51004109)
中央高校基本科研业务费专项资金资助项目(2010QZ02)
煤炭资源与安全开采国家重点实验室开放课题资助项目(SKLCRSM11KFB05)
关键词
冲击地压
三要素
坚硬覆岩
防治措施
监控监测
rock burst
three factors
hard strata
prevention and control measure
monitoring and control
