摘要
矿井五采区开采下组煤14#、15#、16#煤层,其上部2#、6#煤层已开采,采空区面积大,采空区内有积水。通过在15#煤层工作面开采前后施工钻孔,进行现场探测,总结出下组煤14#、15#煤层重复采动上覆岩层“两带”发育高度,即14#煤、15#煤叠加垮落带高度为15.86~16.06m,叠加导水裂缝带高度为57.45~57.56m,为下组煤开采防治上部采空区积水,提供了依据,保证了工作面安全开采。
Five mining area mining lower coal group 14#,15#,16# coal seam, the upper 2#,6# coal seam min- ing, mined out area is large with water, through field exploration 15#coal seam working face mining and drill- ing, summed up the lower coal group 14#, 15# coal repeated mining overlying strata "two belts" development al- titude 14# coal, 15# coal stack of caving zone height 15.86 to 16.06m, superimposed pilot water fractured zone height of 57.45 - 57.56m. In order to provide the basis for the prevention and control of water in the upper part of the coal mining area, the safe mining of the working face is ensured.
出处
《神华科技》
2015年第6期15-18,共4页
Shenhua Science and Technology
关键词
近距离煤层
上覆岩层
“两带”高度
探测
Short Distance Coal
Seam Overburden
"Two Zones" Height
Detection