山西矿厚煤层疏干降压复采技术

Repeated Mining Technology with Dewatering and Depressurization in thick coal seam of Shanxi Colliery

对厚煤层采空区丢失煤量的复采方法进行了研究,根据老空水的赋存及丢失煤量的赋存状态,提出了一系列的方法和措施。通过合理疏干降压,优化巷道布置和开采工艺设计,对原已搁弃的呆滞煤量进行了充分的回收,为其它区域的复采提供了宝贵的经验。

By studying the repeated mining method with coal output loss in goal with thick coal seam and the oc- currence of goal water and lost coal, the author presents a series of methods and measures such as reasonable dewatering and depressurization, optimization of roadway layout and design of mining techniques, which a- chieves sufficient recovery of abandoned dead coal and provides valuable experiences for repeated mining in other areas.