工作面的底板突水危险性评价

Risk assessment of water inrush from the floor of working face

在充分认识二水平6煤底板隔水层的厚度以及水力性质、含水层的富水性及水压后,分别采用斯列萨列夫公式法和突水系数法对6煤开采实施了突水安全性评价,最终作出6煤底板突水预测分区图。将整个矿区分为安全可采区、可能突水区和突水危险区,预测分区图与矿区实际条件较吻合,为不同的开采区域采取合理的防治水措施提供了依据。

By full-understanding the thickness and hydraulic properties of aquifuge,water content of aquifers and water pressure of No.6 coal seam in the second level,the water-inrush safety evaluation of No.6 coal mining is implemented using Slesarev formula and water-inrush coefficient method,finally drawing the zoning map of water-inrush prediction of No.6 coal seam.The whole mining area is divided into safety mining area,possible water-inrush area and water-inrush danger area.The predicted zoning map is consistent with the actual conditions of the mining area,which provides a basis for reasonable prevention and control measures in different mining areas.