Volume 3 Issue 3
Sep.  1997
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Article Navigation >  Journal of Geomechanics  > 1997  >  3(3): 29-35
Wu Lixin, Wang Jinzhuang, Meng Shunli, 1997. COAL CREEP AND GROUND SUBSIDENCE OF FENGFENG COAL MINEⅡ. Journal of Geomechanics, 3 (3): 29-35.
Citation: Wu Lixin, Wang Jinzhuang, Meng Shunli, 1997. COAL CREEP AND GROUND SUBSIDENCE OF FENGFENG COAL MINEⅡ. Journal of Geomechanics, 3 (3): 29-35.
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COAL CREEP AND GROUND SUBSIDENCE OF FENGFENG COAL MINEⅡ

  • 1. Beijing Grad. Sc. of C.U.M.T.;

  • 2. Coal Bureau of Hebei Province

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    Abstract
  • Creep experiments of coal under uniaxial load show a low creep factor (Z=e1/ec) and a high threshold stress (eth).The samples are taken from the Fengfeng coal field in Hebei Province.Creep parameter sets determined at different stress levels were presented.Calculations of ground subsidence due to underground mining of Fengfeng coal mine Ⅱ using the present experiment results call for farther precautions.

     

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