摘要
基于崔家寨煤矿E12503工作面运输巷以及相邻的E12505工作面运输巷出现的冒顶等一系列巷道失稳问题,考虑到回采巷道所处煤层群中的空间位置,综合分析上下煤层之间、邻近工作面及煤柱的留设等因素对巷道的影响,研究了造成巷道破坏的机理。通过分析研究,提出了巷道的布置、煤柱宽度的留设及锚杆支护参数的选取及施工方案,并对巷道稳定控制采取有效措施。
Base on the a series of gateway unstable problems,such as the roof falling occurred in the transportation gateway of E12503 coal mining face and the transportation gateway of the neighbor E12505 coal mining face of Cuijiazhai Coal Mine,in consideration of the space location of the mining gateway in the seam group,the paper comprehensively analyzed the factors between the up and down seams,neighbor coal mining face and coal pillar layout affected to the mining gateways and studied the mechanism to cause the ...
出处
《煤炭科学技术》
CAS
北大核心
2009年第3期13-16,共4页
Coal Science and Technology
关键词
顶板失稳
底板巷道
煤柱
采动影响
锚杆支护
roof stability lost
floor gateway
coal pillar
mining activity influence
bolt support
