China Safety Science Journal ›› 2026, Vol. 36 ›› Issue (S1): 169-176.doi: 10.16265/j.cnki.issn1003-3033.2026.S1.0025

• Disaster Prevention and Mitigation Technology and Engineering • Previous Articles     Next Articles

Application of comprehensive geophysical exploration technology in mine roof water damage prevention and control

Yang Wei1(), Hu Wei1, Meng Wenjun1, Li Zhuang1, Qiao Zengjian1, Guo Xiaotong2   

  1. 1 Echnical Support Center, Guoyuan Electric Power (Shendong Electric Power) Co., Ltd., Xi'an Shaanxi 710000, China
    2 Shajihai Coal Mine, State Grid Energy Hefeng Coal & Power Co., Ltd., Tacheng Xinjiang 834400, China
  • Received:2026-02-15 Revised:2026-04-26 Online:2026-06-30 Published:2026-12-30

Abstract:

To investigate the application effect of comprehensive geophysical exploration techniques in roof water damage prevention and control in fully mechanized mining faces, the B1003E06 fully mechanized mining face in a coal mine of the Tacheng Prefecture, Xinjiang, was selected as the research background. A survey method combining transient electromagnetic technology (TEM) with audio frequency electric penetrating (AFEP) technology was employed. Advanced detections were carried out on the coal seam roof in the B1003E06 fully mechanized mining face. Based on the comprehensive analysis, the distribution and volume of water in the roof aquifer were assessed. The results show that the combined TEM and AFEP survey method, when applied prior to coal extraction, could effectively identify the spatial distribution characteristics of water-rich anomalies in the coal seam roof. This helps facilitate the design and construction of underground water exploration and drainage boreholes and ensure safe coal extraction. Based on cross-validation of the two geophysical exploration results, 26 water-rich anomaly target zones are comprehensively delineated in the B1003E06 working face, with 34 verification boreholes designed. Drilling verification confirms that the spatial distribution of water inflow from the boreholes generally corresponds to the distribution of the water-rich anomaly zones revealed by both AFEP and TEM methods. For anomaly zones indicated simultaneously by the two methods, the comprehensive geophysical exploration results of the working faces are generally accurate. The primary direct water filling source in the B1003E06 working face is water from the Xishanyao Formation sandstone aquifer in the roof. All borehole water inflow rates are low, with none exceeding 0.15 m3/h. This indicates that the sandstone aquifer in the roof has low water yield property, which is favorable for safe coal extraction. The transient electromagnetic and audio frequency electric penetrating technologies could effectively identify water-rich anomalies within the underground mining area.

Key words: transient electromagnetic technology, audio frequency electric penetrating technology, apparent resistivity, roof water-rich anomaly, mine water damage prevention and control

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