Abstract:Portions of the Ⅲ burnt rocks in south part of the first mining area of northern open pit coal mine in Dananhu mine of Hami in Xinjiang should be exposed. It makes the burnt rock water become the main source of mine water filling. As showed by hydrogeological data in exploration stage, water bearing space in burnt rock area developed well with permeable capability and large storage capacity. Due to the limit of hydrogeological exploration engineering amount in exploration stage, hydrogeological condition has not been identified in detail. In order to find out water contact and the groundwater water quality changes of burnt rock, and to fully expose the hydrogeological conditions of the burnt rocks in Ⅲ burning area, group drilling pumping test has been designed. This test has identified hydrogeological conditions of burnt rocks, provided the basis for water prevention work under the condition of burnt rock. Through comprehensive analysis, it is showed the burnt rocks in Ⅲ burning area are aquifer storage capacity type with poor supply conditions.
