Recently, the "long distance exploration for roadway development" geological advanced detection technology of CCTEG Xi'an Research Institute (Group) Co., Ltd.was exhibited at the 20th China Coal & Mining Expo. As a "clear eye" to discover hidden disaster-causing factors in coal mines, its successful application will escort the rapid and intelligent tunneling of roadways.
The advanced geological exploration technology of "long-drilling and long-exploration" of CCTEG Xi'an Research Institute (Group) Co., Ltd. is based on the technical principle of "geophysical prospecting in holes" and the working mode of underground long drilling and branch hole in coal mines to realize long-distance exploration of the occurrence form of coal seam and hidden disaster-causing geological factors in front of the tunneling roadway. New geophysical prospecting technologies such as borehole transient electromagnetic, borehole geological radar and mining borehole gamma logging are adopted to detect the geological structure and water-rich abnormal area within 30m radial range of the borehole. It overcomes the problems such as "short excavation and short exploration", separation of drilling and exploration, and separation of exploration existing in the advanced detection of traditional tunneling roadways, realizes the integrated working mode of "long excavation and long exploration", integration of drilling and exploration, and parallel exploration, meets the needs of "long-distance" detection along the direction of the tunneling roadway, close-range high-precision detection around the roadway, all-round structural detection and hidden hazard investigation of disaster-causing geological factors, and provides a geological guarantee basis for safe and rapid tunneling of the roadway.
At the same time, this technology can meet the requirements of detailed rules for underground water exploration and drainage prevention and control, solve the conflicts between advanced detection and rapid tunneling in construction time, working space and detection environment, effectively improve the work efficiency of rapid tunneling, and has good technical adaptability and practicability. This technology will become a "thousand-mile eye" to find hidden disaster-causing factors in coal mines and escort the rapid, safe and intelligent tunneling of coal mine roadways!
