The Affect Of Coal Mining To Groundwater In Shennan Mining Area

This paper mainly does research for the Shennan mining area. Through consulting a large numbers of data and statistics, using a variety of materials hydrogeology, structural geology and other related disciplines, combining the drilling data and exploration reports of the study area, do a thorough research to the Influence of coal mining to the groundwater in Shennan mining area, and makes the relevant preventive measures.The structure of study area is relatively simple,it is monoclinic in general. Shennan mining area mainly mines 1-2 、2-2、3-1 、4-2and5-2coal seam. By the occurrence characteristic of the main coal seam and stratigraphic features in the study area, analyze the lithological characteristics of the roof and floor of the main coal seam,; by studying the hydrogeological Characteristic conditions of the area, analyze the properties of main aquifer layer and the impermeable layer in the study area; Summarize the contact with the main coal layer and the main aquifer in the study area according to the above two conditions.This paper mainly calculate the height of Caving zone and Water flowing fractured zone which produced in mining coal by Formula Method. Compare the height of Caving zone and Water flowing fractured zone to the distance which is the main mining coal to the main aquifer, obtain the main affected aquifer which produced in mining coal; then calculate the affected radius according to the data of pumping test in studying area; finally need to evaluate and propose to the coal mining.