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| Study on comprehensive geophysical exploration design and construction method of irregular working face |
| He Jigang |
| Yangdong Mine, Jizhong Energy Fengfeng Group Co., Ltd, Handan 056200, China |
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Abstract The triangular coal generated in the process of coal mine working face layout, the working face delineated by geological structures such as faults in complex geological areas, and the coal pillar working face left by mining and excavation could produce relatively irregular working faces. Talking Yangdong Mine as an example, by comparing the difference between irregular working face and regular working face, combined with comprehensive geophysical exploration including the transient electromagnetic and radio wave tunnel perspective detection principle and field construction technology, the preliminary design was completed based on the theory, then the geophysical exploration layout was set up according to the actual construction conditions, which ensured the working face water prevention and control and geological work requirements, and provided guarantee for coal mine safety production.
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