运用瓦斯地质理论和方法,分析了松树镇煤矿地质因素对煤与瓦斯突出的影响及回采工作面瓦斯涌出特征。结果表明,地质构造和煤层埋深是影响煤层瓦斯赋存主要因素,而煤与瓦斯突出主要受地质构造影响,在地质构造带应力较集中,煤体结构遭到破坏,瓦斯含量及压力增大,容易导致煤与瓦斯突出事故发生;回采工作面瓦斯涌出以采空区瓦斯涌出为主,约占46.62%。在此基础上提出了优化通风系统、完善瓦斯监测预测和加强瓦斯抽采等瓦斯综合防治措施,为松树镇煤矿安全生产提供技术保障。

The gas geological theory and method were applied to analyze the geological factors of Songshuzhen Mine affected to the coal and gas outburst and the gas emission features of the coal mining face.The results showed that the geological structure and coal depth was the major factors to influence gas deposit;coal and g as outburst was controlled mainly by geological structure, in geological structure zone, gas outburst occurred because of the stress concentration, damaged coal struct ure as well as large gas content and high gas pressure;gas emission quantity in goaf accounted for about 46.62% of the quantity in working face. Based on the circumst ances, the optimized ventilation system, improved gas monitoring and prediction, enhanced gas drainage and other comprehensive gas prevention and control measure s were provided and could provide the technical protections to the safety production of Songshuzhen Mine.

国家自然科学基金资助项目(41172144)；教育部博士点基金资助项目(20110023110016)；