摘要
针对综采工作面之间留设护巷煤柱造成煤柱区域应力集中、煤炭资源浪费等问题,四老沟矿结合矿井地质条件,试验切顶卸压沿空留巷技术。通过运用关键层理论及双向聚能爆破致裂技术,实现工作面采空区顶板顺利切落成巷,通过进行矿压观测分析,达到预期的留巷效果。
In view of the area stress concentration and coal resource waste caused by coal pillar retaining between fully mechanized mining faces in Silaogou Colliery,the author proposes the gob-side entry retaining technology with roof cutting and pressure relief through the application of key layer theory and bidirectional cumulative blasting technology,in which the goaf roof can be successfully cut into a roadway with expected effect of roadway retaining through mine pressure observation and analysis.
作者
崔继海
Cui Jihai(Silaogou coal mine,Jinneng Holding Coal Industry Group,Datong,Shanxi 037000)
出处
《江西煤炭科技》
2024年第3期39-42,共4页
Jiangxi Coal Science & Technology
关键词
沿空留巷
切顶卸压
聚能爆破
补强支护
gob-side entry retaining
roof cutting and pressure relief
cumulative blasting
reinforcement support
