Research On Technology Of Double Lane Parallel Electrical Method Under The Condition Of True3D Perspective Testing

Along with the mining working face in horizontal extension and the increase of mining depth, seam mining under the threat of damage degree increasing, so the face plate of concealed structure and anomaly detection of water area is especially important.Mine direct current method in the application of the mine safety production is more universal and effective, especially the double lane parallel electrical method under the condition of true3D perspective testing technology to be able to effectively detect abnormal working face floor strata water area, has important theoretical and practical significance.Using the method of direct current perspective has not considered when working face and double lane conditions, mostly based on the ideal model is simulated under the condition of medium, in view of the coal mine field is complicated construction environment and the influence factors of three-dimensional electrical method used in detection of floor strata, abnormal area location and the scope of abnormal area division has significant limitations.Inversion of field test data is limited to plane double lane between the inversion, the result accuracy is reduced.Based on the numerical simulation method, constructs the complex plane, and form a variety of unusual structure inversion, discuss the response characteristics of abnormal body to the electric field, and by using physical simulation method to validate the results of numerical simulation and analysis of the electrical method under the condition of true3D double lane perspective method of reliability.The results show that the power receiving electrode3D coordinate space inversion, the extracted data layer resistivity, to explain the characteristic of abnormal, the effect is good.Detection system based on the three-dimensional electrical method to collect the electric field distribution rule and the apparent resistivity values, based on the complex geological model, mining face structure into actual landform, geological conditions, such as the data model,3D modeling and visualization technology, on the basis of using3D geological software into actual complex terrain coordinate system, which can be read with geological prospecting raw grasp, simulated3D strata,3D stratum display, cutting, and other functions, three-dimensional electrical method true three-dimensional simulation study, will face rock bottom water can better range and position of whole space scene, real reflect the complex tectonic conditions under the influence of abnormal formation real rich water area.Ditch and luling coal mine coal mine, wanbei are through the implementation of scene contrast detection experiments, further verify the double lane parallel electrical method under the condition of true3D perspective reliability testing technology, detect the apparent resistivity and the actual water drilling reveal corresponding consistency is good, the true reduction more clearly under complex conditions, formation and assignment of roof and floor rock water areas in the working face, detecting precision is more accurate than the traditional method, and quantitative evaluation of the abnormal division and more accurate, to face the safety mining process detecting bottom water disasters to provide more effective technical methods.Thesis further puts forward the working face under the condition of ups and downs floor strata used three-dimensional electrical method the test technology improvement and thinking perspective, for the development of the mine water prevention and control technology after expanding research train of thought.