COAL CREEP AND GROUND SUBSIDENCE OF FENGFENG COAL MINEⅡ

Wu Lixin; Wang Jinzhuang; Meng Shunli

Volume 3 Issue 3

Sep. 1997

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Article Navigation > Journal of Geomechanics > 1997 > 3(3): 29-35

FENG Xiang-dong, LIU Wei-hu, WEI Dong-ping, 2006. NUMERICAL SIMULATION AND DYNAMIC ANALYSIS OF THE STRESS FIELD OF THE INDO-AUSTRALIAN PLATE. Journal of Geomechanics, 12 (4): 429-440.

Citation:

Wu Lixin, Wang Jinzhuang, Meng Shunli, 1997. COAL CREEP AND GROUND SUBSIDENCE OF FENGFENG COAL MINEⅡ. Journal of Geomechanics, 3 (3): 29-35.

FENG Xiang-dong, LIU Wei-hu, WEI Dong-ping, 2006. NUMERICAL SIMULATION AND DYNAMIC ANALYSIS OF THE STRESS FIELD OF THE INDO-AUSTRALIAN PLATE. Journal of Geomechanics, 12 (4): 429-440.

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

Abstract

Creep experiments of coal under uniaxial load show a low creep factor (Z=e₁/e_c) and a high threshold stress (e_th).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.
- coal,
- creep,
- theoretical model,
- experimental formula,
- mining subsidence