摘要
为研究卸压槽技术在防冲和减少巷道变形中的作用,以忻州窑矿309盘区11#层8931面5931巷为研究对象,根据地质条件,对巷道底板布置卸压槽,同时布设了卸压槽卸压效果观测设备,观测巷道压力及位移变化。结果表明:布置卸压槽可减小应力集中,缓解巷道围岩变形,减弱和消除工作面的冲击地压危险性,有利于巷道保持长期稳定,增加企业的经济效益和社会效益。
Aiming at rock burst of roadway 5931 face 8931 coalseam No. 11 Panel 309 in Xinzhouyao coal mine, according to relevant geological conditions, the pressure -relieving groove was excavated on roadway floor, and devices were set so as to observe the press and displacement of roadway. Observation results show that the pressure - relieving groove is beneficial to risk reduction of rock burst and can in- crease economic and social benefits of enterprise.
出处
《水资源与水工程学报》
2013年第3期149-151,共3页
Journal of Water Resources and Water Engineering
基金
国家重点基础研究发展计划(973计划)(2011CB201206)
关键词
冲击地压
卸压槽
巷道变形
监测
rock burst
pressure-relieving groove
roadway deformation
observation
