摘要
针对新疆矿区顶板岩性互层导致支护难度大的现状,借助于巷道围岩的应力分布规律及松动圈与支护的关系,说明了松动圈范围对围岩支护具有较大的影响。同时,在Mohr-Coulomb准则基础上推导出互层顶板松动圈的范围,进一步在现场通过钻孔窥视并测量出围岩松动圈的范围。
For Xinjiang mining roof lithologic alternation leading the trouble with support status,it takes the help of the roadway surrounding rock stress distribution and the relationship of the loose circle and supporting,explaining the scope of loose circle has a great influence on surrounding rock support. At the same time,the Mohr-Coulomb criterion the loose circle,further in the field by rock loose circle. drilling is derived on the basis of mutual roof with the scope of peep and measuring out the scope of the surrounding
出处
《煤炭技术》
北大核心
2017年第9期72-74,共3页
Coal Technology
基金
国家科技重大专项课题(2016ZX05043005-005)
