潘三矿1211(3)工作面缩小防水煤柱开采的可行性探讨

Discussion on the Feasibility of Reducing Waterproof Pillaring on 1211(3) Working-face of Pansan Mine

运用水文地质学的有关原理,通过对潘三矿1221(3)工作面第一个切眼掘进中突水原因和1211(3)工作面地质、水文地质条件的分析,分析了1211(3)工作面缩小防水煤柱开采的可行性,提出了工作面总体布局和回采方案。

Using the basic theories of hydrogeology, according to the analyses about the cause of the water bursting during the first drilling of 1211 （ 3 ） workin^face in Pansan mine being dug and the geological and hydrogeological condition on this working-face, the feasibility of reducing waterproof pillaring is analyzed and a project of overall arrangement and recovery on this working face is proposed.