Study On Two-gateways3-D Electrical Technology For Water Abundance Within Mine Working Face Floor

Because of the growing threat by water disaster, it becomes particularly important to detection water abundance within floor before stoping. Mine direct current method by the sensitive reaction for rock formations water abundance, has been widely used in the mine face floor with water damage detection. Subject to on-site construction conditions and technical limitations,the existing method has many of defects in data collection, locating water abundance post-data processing. So take active research by Parallel3-D Electrical Technology for water abundance in mine working face floor with a strong theoretical and practical value.On the base of analyzed electrical penetration technology, the paper builds and perfects the observing eystem of Parallel3-D Electrical Technology for water abundance in mine working face floor,and give the reciprocal data processing such as conventional data processing and3D inversion. According to strati graphic features of6coal seam floor, it verified the detection feasibility by numerical simulation technology form the laws of the electric field distribution and apparent resistivity anomaly characteristics. By the simulation of multi-geological models, using different detection simulation to different geoelectric model, the results show that Parallel3-D Electrical Technology for detective water abundance have effectiveness and superiority in mine working face floor.After numerical simulation and physical model, it takes comparative experiments in Huaibei Mining Area-site.The sesults show that the technology had good convergence of the target body and accuracy of the spatial extent for Fu Water District in working face floor compared with other detection methods.In addition, through statistical analysis comparing the drilling out of the water and the apparent resistivity value of mine strata rich water level in Huaibei Mining Area, it had a preliminary exploration in quantitative interpretation of the mine rock formations rich water level and apparent resistivity value.Finally, after thinking about the development of Parallel3-D Electrical Detection Technology for water abundance in mine working face floor, the paper points out a way for the mine face floor water damage detection and water control in the future.