摘要
采用单元法实验,研究了平煤新峰四矿12160回采工作面煤层开采过程中上覆岩层裂隙变化规律,发现了裂隙带的演化是一个动态变化的过程,瓦斯储集和输运也是一个动态变化的过程.分析了采空区瓦斯在裂隙中运移规律,进而研究了开采过程中卸压瓦斯储集与采场围岩裂隙的动态演化过程之间的耦合作用关系.以期为瓦斯的防治提供理论依据.
The cell experiment was used to study the changing rules of the upper cover rock cracking during the mining process on working face No. 12160 of Xinfeng Fourth mine in Pindingshan Coal Co. Ltd. The result shows that the evolvement of the cracking field as well as the gas storage and gas migration is a dynamic process. The authors analyzed the migration rules of the gas in gob and studied the coupling functional relation of storage of mining induced releasing gas during the mining process and the dynamic evolving process in the surrounding rock cracks so as to offer a theoretical support for gas prevention.
出处
《采矿与安全工程学报》
EI
北大核心
2007年第4期414-417,共4页
Journal of Mining & Safety Engineering
基金
国家自然科学基金项目(50534090
50574093)
国家重点基础研究发展规划(973)项目(2005CB221506)
关键词
瓦斯
卸压
围岩
裂隙
演化
gas
press relief
surrounding rock
crack
evolvement
