Study On The Visual Inversion And Risk Area Prediction Of The Hidden Structure Of The Working Face Based On The Channel Wave Seismic Exploration Technology

China is rich in land and resources,with large coal reserves.Many coal mines are located in areas with complex geological structures.In the production process of coal mine,because of the complex geological structure,it will bring many hidden dangers to the safety production of coal mine.In the rapid development period of contemporary industrial production,more and more attention is paid to the demand for energy.Coal plays a very important role in the structure of disposable energy consumption,especially the continuous improvement of the mechanization degree of mine production.In the process of mining,because many complex structures of ground mass can not be detected,the cost of coal mining enterprises will often increase,but also face to face Facing the threat to mine safety production.In recent years,with the depletion of shallow coal resources,many coal mines begin to mine to the deep.People pay more and more attention to the mining of deep coal resources.However,the deeper the structure of the strata is,the more complex the geological factors,such as small fold,magma dip,small fault,coal seam fork and merger,are likely to cause roof caving,water permeability,gas outburst and other factors that affect the safety of production Accidents,even the economic benefits of coal mines have been greatly lost.Therefore,the key to improve the production efficiency,reduce the accident rate and maximize the comprehensive benefit is to accurately detect the complex geological structure of the mine.In the exploration of exploration technology,it is found that trough wave seismic exploration technology has many advantages,such as high detection accuracy,large distance,relatively intuitive results,small factors influenced by the outside world,and so on.It is more and more widely used in the exploration of mine geological structure.Therefore,the channel wave seismic exploration is not only applicable to the large area of abnormal geological structures,such as abandoned roadways,water filled goafs,etc.,but also has significant detection effect on the small area of abnormal geological structures,such as collapse columns,small faults,coal seam bifurcations and thinning areas.This paper introduces the development and practicability of the channel wave seismic exploration technology at home and abroad,and combines the theoretical basis of the channel wave seismic exploration technology.According to the parameters of the study area,the dispersion curve and amplitude distribution curve of the trough wave are calculated theoretically by using the Leff type trough wave.Finally,it is concluded that the central energy of the coal seam in this working face is the strongest,the velocity of the trough wave is about 1100 m / s,and the frequency is about 140 hz.Taking the 15107 working face of Huiyang coal industry as the research object,five abnormal areas are finally delineated by using the channel wave seismic exploration technology,including one wind oxidation zone,two coal seam fluctuation or stress abnormal areas,two coal seam thinning areas and coal free areas caused by faults,and the results are consistent with the field exposure,guiding the safe production of the coal mine.The application accuracy and practicability of the channel wave seismic exploration technology in detecting the thickness change of coal seam and the abnormal geological structure of fault are proved by examples.