Comprehensive Exploration And Application Of Mine Electromagnetic Method In Water Rich Area Of Floor Of 3307 Working Face Of Xinyuan Coal Mine

For a long time,the economic losses and casualties caused by coal mine water disaster to the country and people are extremely heavy,which seriously threatens the safe production of coal mines.Preventing the occurrence of water inrush accidents has become an urgent hydrogeological problem to be solved in coal mines.There are many kinds of underground advanced detection,among which mine DC method and mine transient electromagnetic method are most widely used,but their working principle,scope of application and conditions are different,coupled with the limitations of working face geological conditions and construction conditions,the effect of advanced detection is different.Therefore,it is of great significance to carry out mine DC and mine transient electromagnetic advanced detection,determine the superiority of the method and carry out comprehensive interpretation.Based on the extensive investigation of literature at home and abroad,this thesis uses parallel DC method,audio electrical perspective and mine transient electromagnetic method to detect the floor of 3307 face of Shanxi Xinyuan Coal Co.,Ltd.According to the characteristics of different advanced detection methods,firstly,the working device and construction parameters are determined.Through the inversion and interpretation of the detection data by using mature software,the effectiveness of parallel DC method,audio electric perspective method and mine transient electromagnetic method to detect the water flow in the floor of the working face is verified.Then,by comparing the detection results of the three methods,the low resistance area of the floor of 3307 working face is delineated,geological inference is carried out,and certain geological detection results are obtained.At the same time,the research results also show that the detection results of parallel DC method,audio electro perspective and mine transient electromagnetic method are consistent and consistent,indicating that the comprehensive interpretation of advanced detection has certain advantages and has a very good application scenario.