The Research on the Impact Partition of Water Resources Quantity in Coal Mining

Considering the changes of permeability (Kx, Ky, Kz) before and after mining, we constitute the simulation model of the groundwater in research area, we also analyze the water level drawdown by combining six schemes simulation based on the water inflow (5000m 3 / h, 2500m 3 / h) and exploitation year (10, 20, 30 years). The results showed: the biggest descend of water level drawdown are 28, 32,22m, which respectively happened in the first, second and third panel, and centering on working platform, the depth of water drawdown to the outside direction and the same to the water exchanging, when coal mining 10, 20, 30 years and water inflow 5000 m 3 / h. Exchange of water and water level drawdown trends are the same. It's the mining area shallow water level of Jinzhou distract that has the most serious influence after coal mining 20 years.