Study On Chemical Characteristics Of Groundwater And Identification System Of Water Inrush Source In Gaoping Mining Area

Mine water hazard is one of the main geological hazards that threaten our coal resources in mining and production,which seriously affects the safety of coal mine production.The prevention and control of mine water inrush generally starts with the source of mine water inrush and the channel of mine water inrush.Therefore,the research on the identification method and system of mine water inrush source has important theoretical guiding significance and engineering practical value for the prevention and control of mine water inrush disaster.Based on the determination of water quality type and the analysis and calculation of hydrochemical data,the hydrochemical characteristics of groundwater in each aquifer are obtained,and the distribution law of characteristic ions in each aquifer is summarized.Then,in the research of mathematical discriminant model,on the basis of the existing grey correlation analysis,multi-group stepwise discriminant analysis and system cluster analysis,the grey correlation-multi-group stepwise joint discriminant analysis model is introduced,which improves the accuracy of model discrimination.On this basis,based on C# language,preliminary design and development of mine water inrush source identification system.The content and results are as follows:(1)Groundwater in the study area belongs to Sanguquan area.By drawing characteristic ion curves and Piper's three-line maps,the water quality types of the main aquifers in the study area can be analyzed.By analyzing the correlation between the main anions and cations of the main aquifers and TDS,the main characteristic ions of each aquifer and their variation characteristics can be summarized.(2)On the basis of grey relational analysis,multi-group stepwise analysis and system clustering mathematical theory analysis,a discriminant model of Mine Water Inrush Source Based on grey relational analysis,grey relational-multi-group stepwise discriminant analysis and system clustering analysis is constructed.By using MATLAB simulation calculation,the discriminant work of mine water inrush source in the study area can be realized,because the mathematical methods of the model are different.The characteristics of each model are discussed.(3)Based on the above research results,taking the mine water inrush discrimination model as the core and combining with the mine water quality index system,a set of mine water inrush water source discrimination system is preliminarily designed and developed.In the system,the water chemical characteristics of water samples and the water inrush water source identification are realized,and the access and edition of the water chemical data information are realized.The operability and practicability value of the system are realized.