俯采工作面顶板水防治技术实践

郑煤集团告成煤矿13151工作面在顶板砂岩水影响条件下,采取多种举措,采用疏、导、排等方法,有效地治理了顶板水,实现了工作面安全顺利回采,不仅多回收煤炭资源4.3万t,而且对矿井可持续发展起到极其重要的作用。

Practice of Technology on Prevention of Roof Water in Down Coal Face

Under the influence conditions of sandstone water of roof at No.13151 coal face, in Gaocheng Coal Mine in Zhengzhou Coal Industry Group,many measures were adopted,such as methods of dredging,leading and dewatering etc.the roof water was effectively controlled.The safe and smooth mining was realized at the coal face.Not only 43 000 tons of coal resource was recovered,but also there was very important function for continuous development.