Forecasting Research Of Mine Inflow Of Coal Mining Of Yushen Coal Zone And Its Environment Impact Analysis

The Xiao Baodang1and2coal mine are located in the national large-scale coal bases in Northern Shaanxi base of Yushenfu mining area, which is rich in coal resources, but the office environment is relatively weak in arid and semiarid Sandland, strata vertical surface organ systems constitute the ecological water resources, coal resources, the coal resources development and ecological and environmental protection increasingly prominent contradictions. Analysis in combination with Xiao Baodang1and2coal mine geological and hydrogeological data, the mine water inflow and coal mining and ecological environment coupling model is studied, in order to realize the harmonious ecological environment, water resources and exploitation of coal resources and provides an important theoretical basis.In this paper, the prediction of mine water inrush by numerical method. Modflow software and construct the mathematical model accords with the actual use of calculation parameters reasonably, through identification and verification of the model, the variation of groundwater flow field. On this basis, using four prediction scheme (not mining coal seam (scheme1),1coal mine independent mining (scheme2),2coal mine independent mining (scheme3).1and2coal mine at the same time mining (scheme4)) mine prediction of Xiao Baodang1and2coal mine first mining area2-2coal seam the inflow of water. Finally. through the comparative analysis, as the exploitation of coal mine area2-2forecasting results4option value:1and2coal mine are11935m3/d,10653m3/d. Groundwater flow field and the reduction of variation and deep field caused by four different prediction schemes of mine water inrush are discussed, which provides the basis for the study of groundwater surface ecological aquifer-the organic connection between the coal seam.In between coal mining and ecological environment stress constraint relations as a basis, select a reasonable evaluation index, using the interactive coupling system model obtained from2005to2012. the study area of coal mining and ecological environment on the time evolution rate of Vc and VD, and through the calculation of coupling degree y between45°and90°, the coupling relation of coal mining and ecological environment is still at the stage of development, the contradiction between coal mining and ecological environment and no intensification, and it has important significance for the protection of the ecological environment of Xiao Baodang1and2coal mine as well as the whole study area.Study on the prediction of mine water and coal mining and ecological system coupling rule, the coal seam and the upper aquifer-ecological environment of three-in-one organic connection, at the same time, numerical simulation and theoretical analysis are verified, and the results have certain reliability, provide a basis for the analysis of influence of environment of mine, provide on the basis of ecological protection of surface and groundwater resources.