近水平煤层综采工作面顶板应力-渗流耦合响应分析  

Stress-seepage Coupled Analysis of Roof in Fully-mechanized Working Face of Nearly Flat Coal Seam

作　　者：王占宝 刘柄良 WANG Zhanbao;LIU Bingliang(Bulianta Coal Mine,China Shenhua Shendong Coal Group Co.,Ltd.,Ordos 017209,China)

机构地区：[1]神华神东煤炭集团有限责任公司补连塔煤矿,内蒙古鄂尔多斯017209

出　　处：《煤矿安全》2018年第A01期92-94,98,共4页Safety in Coal Mines

摘　　要：我国煤炭资源开采面向大深度、高地应力、高岩溶水压及地温方向发展,煤矿面临灾害种类繁多。采用应力-渗流耦合的数值计算方法,重点分析承压含水层岩体下采煤过程中渗流场、应力场演化规律,分析了工作面推进过程中岩石破断规律及岩层交界面对岩石裂缝扩展路径的导向作用和对孔隙水压力分布、水头分布的变化规律,预测承压流体涌入工作面可能性。The exploitation of coal resources in China is developed in the direction of big depth, high ground stress, and high karst water pressure and ground temperature direction, and coal mines face a wide variety of disasters. This paper uses the stress- seepage coupling method to analyze the seepage field and stress field evolution in the process of coal mining under confined aquifer, analyzes the laws of rock breaking in working face advancing process and the guiding effect of rock interface on rock fracture propagation path and the change laws of pore water pressure water head distribution, and predicts the possibility of pressurized fluid entering the working face.

关 键 词：综采 近水平煤层 矿井灾害 流固耦合 数值计算 

分 类 号：TD327.2[矿业工程—矿井建设]