摘要
在松软破碎岩体中开掘巷道,由于地压大,围岩强度低,稳定性差,给掘进和支护增加了难度,常常发生巷道严重变形、破坏,需要反复翻修的情况,既耗费人力、物力和财力,又严重地影响矿井建设和正常生产。特别是近些年来,随着勘探技术和采煤技术的发展,采场正在逐渐向井下深部延深,而越往矿井深部地压越大,围岩越难维护。
To dig funnel in the loose soft broken rock bo dy,because of press is big,round rock strengthis low,stability bad,increase difficulty to dig and support usually occurrence funnel is out of shape and break severity.need to overhaul again and again,waste the manpower material resources and financial,also influence the mine construction and normal production seriously.Especiallg,in the last years,with exploring technique and mining technique development,the mining field is being extended to deep of well,the more deep the ground press is more big,the round rock is more difficult maintenance.
出处
《煤炭技术》
CAS
北大核心
2009年第5期182-183,共2页
Coal Technology
关键词
破碎岩体
巷道支护
围岩
broken rock body
tunnel support
host rock
