冲击地压工作面瓦斯异常涌出原因分析及防治技术

针对冲击地压工作面瓦斯异常涌出问题，在统计分析多个冲击地压工作面瓦斯涌出异常诱发因素基础上，研究了冲击地压工作面瓦斯异常涌出原因分析及防治技术。分析结果表明:冲击地压工作面瓦斯异常涌出影响因素主要有煤岩固有冲击属性、瓦斯含量（压力）、开采深度、坚硬顶板、地质构造、开采技术条件等。冲击地压工作面异常涌出防治技术是在开采过程中实施钻孔卸压、顶板预裂爆破、煤层注水、深孔爆破、瓦斯抽采、强化支护、综合监控监测及安全防护等措施，降低冲击地压及伴生瓦斯异常涌出危险。研究结果在宽沟煤矿I010202工作面实施应用，取得了良好的效果，确保了工作面的安全回采。

Cause analysis and prevention technology of abnormal gas emission in working face with rock burst danger

Aiming at the problem of abnormal gas emission in rockburst working face，based on the statistical analysis of the abnormal gas emission factors in multiple rockburst working faces，the analysis and prevention technology of abnormal gas emission in rockburst working face were studied.The analysis results showed that the main influencing factors of abnormal gas emission from rockburst working face are the inherent impact properties of coal and rock，gas content（pressure），mining depth，hard roof，geological structure，and mining technical conditions.The technology for preventing abnormal gushing from working face with rock burst is to implement measures such as drilling pressure relief，roof pre-splitting blasting，coal seam water injection，deep hole blasting，gas drainage，strengthened supporting，comprehensive monitoring，and safety protection during the mining process，so as to reduce the danger of rockburst pressure and associated abnormal gas emission.The research results have been applied to the I010202 working face of Kuangou Coal Mine，and good results have been achieved to ensure the safe mining of the working face.