Research The Mine Water Regularities Of Distribution And Propose Prevention And Cure Strategies Of New Chao Chuan Mine

Based on the comprehensive collection of past geological and hydrogeologic data about Chaochuan mine, this paper systematically analyzed and researched the geological and hydrogeological conditions of the newly integrated Chaochuan mine. According to analysis, it's found that new Chaochuan mine conditions are very complex and faults are developed, especially, the small faults in deep mine field are well developed . The mine hydrogeological conditions are the same complex. There are nine layers in water-filled aquifers of the new Chaochuan mine totally, in which the two most important aquifers are Cambrian limestone karst aquifer and Carboniferous Taiyuan Formation limestone karst aquifer. The two aquifers, having strong water enrichment and high water pressure, hydraulic connection are existed between them due to tectonic fractures, which are main source of water bursting in coal mine. However, the thickness of water-resisting layer of the main coal bedâ…¡1 Coal motherboard is very thin and distributes unstably, and then companied with the impact of structural fissures and mining-induced fractures, the water-resisting layer ofâ…¡1 Coal bed motherboard can obstruct water only in some local sections to a certain extent, leading to new Chaochuan mine seriously threatened by water damage.The main supply source mine water of new Chaochuan mine is atmospheric precipitation and infiltration of surface water, and mainly replenishment boundary is limestone outcrop areas in south-west border. Mine water filling sources are primarily precipitation, surface water bodies, gob water and coal floor karst fissure water. Water conducting channels are mainly fault zone, fracture zone, closed non-performing drilling and exploration drilling drainage; mine water filling factors are defaults, fissures, water pressure and rock pressure and the combined effects of them.In this paper, a variety of methods are used to predict mining water inflow, in which the value of virtual large diameter well method plus straight-line method, Qnormal = 1140.5m3/h is closest to actual mining water inflow. Through the analysis and research of hydrogeologic conditions, calculation of mining water inflow, the hydrogeologic condition type of new Chaochuan mine water is identified complex type. Aimed at the actual situation of geological and hydrogeological conditions of new Chaochuan mine, this paper presents the prevention and control methods which are suitable for new Chaochuan mine water, that is conditions of new Chaochuan mine, this paper presents the prevention and control methods which are suitable for new Chaochuan mine water, that is mainly to decompression by draining off water, and supplemented by sliping casting to cut off water and reinforce motherboard , and a number of ways combined together .