摘要
矿井下组煤开采受奥灰水威胁的前提下,要从上组煤与下组煤隔离、下组煤采区隔离、下组煤工作面隔离等方面进行隔离开采设计,还要设计计算边界断层煤柱的留设宽度。通过隔离开采才可实现下组煤隔离开采,以减轻矿井受水害威胁的程度。
Lower group coal mining is threatened by Ordovician limestone water, which needs the isolation mining design, including the isolation from upper group coal, the isolation of mining areas, and the isolation of working faces. The retaining width for border fault pillars is also calculated. The lower group coal isolation mining could be realized in order to relieve the water hazard threats in Tuanbai Mine.
出处
《山西煤炭》
2013年第8期61-63,共3页
Shanxi Coal
关键词
下组煤
隔离开采
防治水设计
lower group coal
isolation mining
water control design
