Study on Numerical Simulation of Resistivity Response Characteristics of Surrounding Rock During Coal Seam Mining

Xibin Xu ； Zhao Zhang ； Tongde Zhang ； Keke Ren

《International Core Journal of Engineering》 6卷8期 (2020/08) Pp. 257-263

https://doi.org/10.6919/ICJE.202008_6(8).0034

摘要

Aiming at the problem of rock resistivity change in mining process of coal face, based on the related physical parameters of 8103 working face in Baizhuang Coal Mine, the mining model is established by Flac3D, the distribution of mining stress and plastic failure area are simulated, and the stress variation law of surrounding rock in mining process is analyzed. On this basis, combined with supersonic High-density cross-hole perspective technology can dynamically monitor the water-rich situation, water flow and floor failure depth of mine roadway under the influence of mining and stress, and obtain the variation trend of surrounding rock resistivity during coal seam mining, which provides new experience for the accuracy of inversion of mine resistivity data.

關鍵字

Numerical simulation ； Stress analysis ； Ultra-high density resistivity method ； Floor failure depth ； Cross-hole spatial perspective technology

參考文獻

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