超大层间距联合开采设计在宁武煤田的应用

Application of Super-large Seam Spacing Combined Mining Design in Ningwu Coalfield

超大层间距煤层一般采用分层布置方式,但对于宁武煤田的倾斜煤层而言,可以充分利用煤层倾角较大的特点,进行煤层间采区巷道的联合布置,实现一条区段集中联巷服务四条顺槽,降低准备巷道工程量,实现集约生产,为矿井“一优三减”创造条件。

Slicing layout is generally adopted in coal seams with super-large spacing.For inclined coal seams in Ningwu coalfield,the large dip angle can be fully utilized to carry out the combined design of roadways between the coal seams to achieve that four gateways are connected by a centralized lane,which could reduce roadway preparation work and realize intensive production to create conditions for one-optimization-three-reduction in the mines.