南屯煤矿下组煤十三采区底板突水危险性分区与评价

Division and evaluation of floor water inrush hazard in 13 mining area of lower coal group in Nantun, Mine

在系统收集南屯煤矿下组煤十三采区各勘探阶段及生产矿井地质及水文地质资料的基础上,对奥灰富水性进行了评价,对16上煤、17煤底板突水危险性进行了分区。利用单位涌水量、隔水层厚度和突水系数值等相关参数对十三采区下组煤的开采危险性进行了分区和评价。

Based on collecting the lower coal group in Nantun Coal Mine thirteen mining area of each stage of exploration and production of coal mine geology and hydrogeology data, the water enrichment of the 0rdovician limestone was evaluated ,floor water inrush riskwas partitioned for floor of upper 16 coal and 17 coal seam. Based on the related parameters of unit water inflow, water resisting layer thickness and water inrush value, the mining risk of the lower coal seams in the thirteen mining area was partitioned and evaluated.