复杂围岩环境大采高工作面“R-S-P”系统稳定性研究

doi:10.11799/ce201402025

Abstract

Abstract:

The geological condition of the large dip angle and mining height face in Yang Chang Wan coal mine is complicated. The stability of Roof-Support-Pillar system trouble the mining safety, economic concentration and high-efficient. This paper synthesizes the geological condition and features, using FLAC3D simulation software simulate the stress distribution and evolvement laws of up and down ends, roof and pillar stress characteristic of up and down roadway, macro deformation features. The results show: with the roof collapse in mining disturbance area, the major mechanics parameters in “Roof-Support-Pillar” system has changed, and stress has redistributed, the ahead stress peak value of pillar and the range of stress reducing area is different.

Key words: complicated surrounding rock, large mining height, R-S-P stability, numerical simulation

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URL: http://www.coale.com.cn/EN/10.11799/ce201402025

http://www.coale.com.cn/EN/Y2014/V46/I2/71

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Research on R-S-P System Stabilization of Complicated Surrounding Rock and Large Mining Height Face

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