近距离煤层群二次卸压开采瓦斯富集区分布研究  

Research of Close-Distance Coal Seams Group Secondary Pressure Relief Mining Gas-Accumulation Area

作　　者：丁勇 李绍泉 李树清[3] DING Yong LI Shao-quan LI Shu-qing(Tongzi Administrator of Work Safety, Tongzi 563200, China Guizhou Mine Safety Scientific Research Institute, Guiyang 550025, China School of Energy and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

机构地区：[1]桐梓县安全生产监督管理局,贵州桐梓563200 [2]贵州省矿山安全科学研究院,贵阳550025 [3]湖南科技大学能源与安全工程学院,湖南湘潭411201

出　　处：《煤炭技术》2017年第5期165-167,共3页Coal Technology

基　　金：“十二五”国家科技支撑计划项目(2012BAK04B07);贵州省优秀科技教育人才省长专项资金项目(黔省专合字(2010)61号)

摘　　要：近距离煤层群保护层开采后,邻近煤层瓦斯得到卸压释放,但二次卸压煤层开采时仍存在瓦斯富集区。以金佳矿煤层群二次卸压开采为对象,通过相似模拟试验裂隙发育的变化情况来研究二次卸压开采随工作面推进瓦斯富集区的分布和变化规律,确保矿井煤层群的安全续采。After mining close-distance coal seams group cover, adjacent coal seam gas get pressure relief release, but secondary pressure relief coal seam mining gas-accumulation area still exists. With Jinjia mine coal seam group of secondary pressure relief mining for object, and through the analog simulation test of fissure development change, researchs secondary pressure relief mining along with the advance of the face gas-accumulation area and change rule to ensure the safety of the mine coal seam group for mining.

关 键 词：二次卸压 运移通道 瓦斯富集区 

分 类 号：TD712[矿业工程—矿井通风与安全]