| 放顶煤工作面支架受力特征及分析 |
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| 引用本文： | 于海涌 孟金锁. 放顶煤工作面支架受力特征及分析[J]. 煤炭学报, 1995, 20(5): 461-466 |
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| 作者姓名： | 于海涌 孟金锁 |
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| 作者单位： | 中国矿业大学北京研究生部，煤炭科学研究总院，大同矿务局 |
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| 摘 要： | 以放顶煤工作面实际观测资料为基础，论述了放顶煤工作面矿山矿力显现的主要特征：（１）液压支架工作阻力不大于单一煤层或上分层开采时的支架工作阻力；（２）放顶煤工作面的支架外载荷普遍前移。由此提出，在放煤支架设计和选型过程中应注意提高支架前端的支护能力。
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| 关 键 词： | 放顶煤开采 矿山压力 支架受力分析 煤矿 |
CHARACTERISTICS AND ANALYSIS OF POWERED SUPPORTS FOR SUB-LEVEL CAVING METHOD |
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| Yu Haiyong,Wu Fengdong. CHARACTERISTICS AND ANALYSIS OF POWERED SUPPORTS FOR SUB-LEVEL CAVING METHOD[J]. Journal of China Coal Society, 1995, 20(5): 461-466 |
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| Authors: | Yu Haiyong Wu Fengdong |
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| Abstract: | Based on the measured data the main characteristics of ground pressure in a sub-level caving face are as the following:(1) The working resistance of powered support is not greater than that of supports used in a single coal seam or in top slice of a coal seam; (2) The external load exerted on the support used in sub-level caving face generally moves forward. Therefore, in design and selection of powered support for sub-level caving method, attention should be given to the capacity of front end of canopy. |
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| Keywords: | sub-level caving method ground pressure support stress analysis |
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