摘要
邢台矿在巨厚松散含水层下的露头区、基岩只有 1 2～ 51m的防砂防塌煤柱条件下 ,按照“先探后采” ,并采取“分阶段限厚放顶”等开采技术措施 ,实现了 6 4m厚煤层综放开采。
In Xingtai coal mine, according to the principle of probing in advance and mining later, near the outcrop zone of extra-thick loose water-bearing strata, longwall top-coal caving mining is achieved in 6.4m thick coal seam under the condition of retaining 12-51m sand-prevention and caving-prevention pillars.
出处
《煤矿开采》
2001年第3期9-11,14,共4页
Coal Mining Technology
