Analysis Of Mine Water Filling Factors And Research Of Mine Water Prevention In Jinyuanli

First mining in Jinyuanli plan mining coal seam, level elevation is+680m, while mine coal weathered zone pore-fractured aquifer bottom elevation is between+780m and+820m, because of caving belt and fractured belt that forming in mining may affect the coal weathered zone pore-fractured aquifer, and in the process of excavating the primary and secondary inclined shaft, has occurred the phenomenon that mine inflow mutanting, therefore, there is the threat of water damage in mine exploiting. In order to effectively prevent water inrush occurring, carry out the analysis of mine water filling factors and the research of mine water controlling.On the basis of collecting the minefield drilling, geological and hydrogeological data, through the lithology and water inflow's variation of the process of the primary and secondary inclined shaft being excavated, determine the type of minefield aquifer and water-filled channels that may existe, use "Big well" method, Q-S curve method and rich water coefficient method to predict the mine water inflow, and correspond mine water prevention measures.Conclude that minefield is mainly divided into four types:bedrock fissure diving aquifer, bedrock pore weak pressure aquifer group, bedrock (seam) fissure strong pressure aquifer and bedrock (seam) fissure weak pressure aquifer; Water-filled source is mainly atmospheric precipitation and groundwater; Water-filled channels is weathered fissures, caving mining and poor closed drilling; The normal mine water inflow is 497.4 m~3/h and maximum water inflow is 585 m~3/h in the first mining area; Should use leaving in waterproof coal and rock pillars, landfilling-compacting, underground pre-drilling draining and so on to prevent the mine water.