The Method of Mine Surveying and Releasing Water on Mining the Near-Neighbored Coal Seams under the Goaf Water in Wusuotun

摘要

The goaf water disaster holds a great proportion in the coal mine water disaster. The 12 down coal seaM of Wu-tunsuo Shenjian coal mine's mining gateway finished. The result was that the sublevel caving stored massive goaf water, and brought the enormous threat to the near 14 seam. When the above seam which was mined had water in the goaf, we made the concrete plan of the tunneling of the below seam, based on the ability of separating water between the rocks, and we persisted the hydro geological work principle of ' we must search if we are not sure, tunneling after mine surveying'. We accurately verified the parameter of the water level and pressure of the subievel caving in the 12 down seam, realizing the ' having pressure' tunneling. In the constructing organization aspect, we proposed a series of organization measures, for example, we used the way of dip tunneling on the up, center and down road way at the 14210 coal face. Through the implementation of these plans and measures, we realized the effectively prevention of goaf water, simultaneously, the discharge goaf water at this time accumulated the success experience for the discharge goaf water on the near-neighbored coal seams mining, reducing the investment of goaf water treatment.