| 煤层底板采动影响的研究 |
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| 引用本文： | 高航,孙振鹏. 煤层底板采动影响的研究[J]. 山东科技大学学报(自然科学版), 1987, 0(1) |
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| 作者姓名： | 高航 孙振鹏 |
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| 作者单位： | 山东矿业学院采矿工程系，山东矿业学院采矿工程系 |
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| 摘 要： | 本文应用相似材料模似方法,研究了煤层底板采动影响。对模型底板岩体进行了综合观测,得到了底板岩体位移及应力的变化规律;並且观测了底板岩体声速变化,用以评价岩体的完整性,指出了底板不同部位裂隙发展变化状况。
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| 关 键 词： | 采动影响 承压水 支承压力 底板突水 底板破坏深度 应力集中系数 采动裂隙系数 临界裂隙系数 |
STUDY ON THE EFFECT OF COAL-MINING ON THE FLOOR |
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| Gao Hang,Sun Zhenpeng. STUDY ON THE EFFECT OF COAL-MINING ON THE FLOOR[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 1987, 0(1) |
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| Authors: | Gao Hang Sun Zhenpeng |
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| Affiliation: | Dept. of Mining. Eng. |
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| Abstract: | In this paper the equivalent material modeltest was applied to study the effect of coal-mining on the coal seam floor.Based on the comprehensive observations of coal seam floor in the model, the authors obtained the change regularity of the floor stress and movement. By measuring the ultrasonic velocity of floor rock-mass to evaluate the integrality of the floor, the authors pointed out the fissure change in different part of the floor. |
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| Keywords: | effect of mining confined-water abutment pressure water-irruption from the floor damaged-depth of the floor coefficient of stress concentration coefficient of fissure developed by mining critical coefficient of fissure |
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