松软煤层综放面顶底板采动应力分布规律研究

凌标灿 蒋伟 丁后稳 廉法宪

凌标灿, 蒋伟, 丁后稳, 廉法宪. 2005: 松软煤层综放面顶底板采动应力分布规律研究. 工程地质学报, 13(2): 160-163.
引用本文: 凌标灿, 蒋伟, 丁后稳, 廉法宪. 2005: 松软煤层综放面顶底板采动应力分布规律研究. 工程地质学报, 13(2): 160-163.
LING Biaocan, JIANG Wei, DING Houwen, LIAN Faxian. 2005: DISTRIBUTION OF INDUCED STRESSES IN ROOF AND FLOOR OF THE SEAM BY LONGWALL TOP-COAL CAVING IN SOFT COAL. JOURNAL OF ENGINEERING GEOLOGY, 13(2): 160-163.
Citation: LING Biaocan, JIANG Wei, DING Houwen, LIAN Faxian. 2005: DISTRIBUTION OF INDUCED STRESSES IN ROOF AND FLOOR OF THE SEAM BY LONGWALL TOP-COAL CAVING IN SOFT COAL. JOURNAL OF ENGINEERING GEOLOGY, 13(2): 160-163.

松软煤层综放面顶底板采动应力分布规律研究

详细信息
    作者简介:

    凌标灿(1966-),男,副教授,主要从事工程地质专业.Email:lingbc@ncist.edu.cn

  • 中图分类号: TD323

DISTRIBUTION OF INDUCED STRESSES IN ROOF AND FLOOR OF THE SEAM BY LONGWALL TOP-COAL CAVING IN SOFT COAL

  • 摘要: 以某矿综放采场为背景,通过现场实测、相似材料模拟等手段,研究了松软煤层综放开采中液压支架受力状态、两巷单体支柱受力特征和顶底板的采动应力分布规律,结果表明液压支架在工作面不同位置受力状态不同,处于中部位置的支架受力最大,同一支架前立柱受力大于后立柱;风巷围岩应力大于机巷围岩应力,两巷的超前采动应力峰值位置在工作面前3~11m;顶板岩层同一层位中采动应力分布随工作面的距离不同而不同;不同层位应力分布也不同,离煤层越近的岩层中应力集中系数越大;底板岩层在工作面前方6m左右处应力达到最大,在工作面处应力为零。该研究结果有效地指导了该矿井同一煤层综放面巷道布置、两巷支护及工作面顶板管理。
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出版历程
  • 收稿日期:  2004-03-25
  • 修回日期:  2004-06-03
  • 刊出日期:  2005-04-22

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