Soil α Measure Application in the Detection of Mine Concealed Structures
ZHOU Jie-min1, MENG Wan-tao2
1.Hebei Coal Science Institute, Xingtai Mining Industry Group Corporation Ltd., Xingtai 054000, China; 2. No.11 Geological Brigade of Hebei Geology and Mineral Exploration Bureau， Xingtai 054000, China
Because of the collapse column, fault and other structural damage to the complete formation, radioactive material radonwith the structure damage brought up to the surface, forming a radioactive elements of radon content difference of abnormal “halo”, using the α numeric scintillation radiometer to measure the strength of the radioactive, within the scope of the detecting circle “abnormal” area, which had important significance to detect concealed structures in coal mine. α measurement in soil was one of the natural radioactive detection method, had the advantages of safety, small radioactive, no pollution, was important for its applications.
