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| Application of integrated geophysical technology of water prevention in 1292 working face of east well in Gequan Coal Mine |
| Li Xiaozhao |
| Hebei Coal Science Research Institute, Xingtai 054000, China |
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Abstract With the purpose of finding out rich water layer in roadway floor under 80m to shallow and face plate under 42m to light ( 1 / 2 mining width ) in 1292 working face of east well in Gequan Coal Mine, integrated geophysical technology was adopted, including using underground electric sounding and audio frequency electric perspective technology. Relevant low resistance abnormity area was determined to reflect measurement result, which provided technical basis to water control measure in coal mining process.
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