Water Source Identification And Prediction Of Mine Water Inflow For Xiaoxian Qiganlou Iron Ore

Iron ore as an indispensable mineral resources,has an important position in the development of human production process.People pay much attention on mine safety and production.Correct understanding of the conditions of mineral water filling,identifying the source of water to fill the mine,helps to master the hydrogeological characteristics of the deposits.Qiganlou iron ore is located in Anhui Province,Suzhou City.The iron ore is a fully concealed deposit,with hydrogeological conditions complex.In the analysis of comparative results,there are many deviations in the mine water source identification and mine water inflow forecast.In this paper,by using the isotope tracer method,we analyze the water filling conditions of the deposit and the correlation between the groundwater.the paper analyzes the iron ore water source by carrying out the supplementary survey and pumping test.According to the existing hydrogeological conditions of the mine,using the analytical method and selecting the appropriate parameters,calculating the results is 12277 m 3 / d.Based on the supplemental survey results,the concept of the boundary and the dynamic characteristics of the groundwater,the concept of hydrogeological geology is established.With the finite difference principle,the numerical simulation is established by Visual Modflow.we get the ideal model recognition results through the trial and error method.To improve the accuracy of the model,it needs further verifition and the identification of the numerical model.Finally,combined with the development and utilization of mineral resources program,the mine is expected to mine the initial level of 11791m3 / d and the normal steady gushing water is about 8513 m3 / d.Compared with the existing results,the author analyzes the main reasons: Tertiary is poor in water permeability,and the bottom of the Quaternary system is in poor water permeability Layer.It has a certain "shielding" effect to the upper part of the pore water.So the result is less than the existing results.Mine water inflow provide guidance for the future safe and rational arrangement of water control measures.