The Application Research Of Electromagnetic Exploration For Prevention And Control Of Limestone Water For A Group Coalseam Mining In Panbei Mine

The geology, hydrogeological conditions for the exploration in the huainan diggins A group coal layer is complicated and with many fault structure, deep location strata is fractured, the bottom plate exists limestone karst cave or solution crack, especially the No.3coal layer roof sandstone water and the bottom plate limestone contained water has already seriously affected the safely, rapidly digging of the working face roadway and the exploration of the coal layer.Thus, it will be with actual senses for us to realize advanced detection toward the group A coal layer bottom plate and roof stratum water content and the font side of the roadway.As per the geological condition of the huainan mineral area coal layer A, we have realized experimental simulation toward different earth electricity models through numerical simulation technique and physical model experiments. After comparative analysis, we further determined the effect and the superiority of the electromagnetic method detecting technologies toward the detection of the water content of the road way frontage and the working face roof and bottom plate. After numerical technology and physical model experiment, the consequent showed that the accuracy rate of electromagnetic method detection is very high, the position toward the areas that maintains much water is especially accurate, this has effectively guided the coal mine water-proof works.This thesis combines the actual conditions of the site using the comprehensive geophysical technology to detect the application research on coal bearing strata water bearing. Mainly includes:in the tunneling process, the mine transient of the front tunnel advanced detection hidden water bearing bodies of transient electromagnetic technology, provide the technical basis for roadway safety driving; has formed in the working surface of double lane uses radio wave penetration method and parallel electrical technique on the working face of exploration in the roof and floor water bearing and to provide guidance for prospecting drainage borehole layout of working face.This thesis, combining with the site actual condition, adopted complex geophysical prospecting technologies to realize the detective and applicative researches toward the coal containing stone water containing area. Mainly includes below:in the process of digging the roadway, adopt the mine transient electromagnetic technology and the directive current method advanced detection to detect the potential water content in the front of the roadway, thus to supply technical basis for the roadway safely digging. Adopt3D electricity mode and the transient electromagnetic complex detecting technology in the existing working face dual roadways to detect and inspect the bottom plate and roof stone layer water containing area in the working face, thus to supply guidelines for the working face water detection and discharging distribution.This thesis, through the earth physical detecting consequent, to analyze and comment the structure and the geological condition of the-580m water discharging mass roadway and the11113working face coal layer, to supply relative technical references for the coal mine water-proof works, which has supplied powerful guidelines for the A group coal layer exploration in other mines.