| 瓦斯压力对急倾斜煤层放顶煤的作用机理分析 |
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| 引用本文： | 王卫军,熊仁钦. 瓦斯压力对急倾斜煤层放顶煤的作用机理分析[J]. 煤炭学报, 2000, 25(3): 248-251 |
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| 作者姓名： | 王卫军 熊仁钦 |
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| 作者单位： | 湘潭工学院,采矿与安全工程研究所,湖南,湘潭,411201 |
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| 摘 要： | 应用煤岩流体力学理论分析了煤体内孔隙瓦斯压力对急倾斜煤层顶煤破碎的作用 ,孔隙瓦斯压力能降低煤体强度和弹性模量 ,利用其作用于煤体的开裂模式 ,使顶煤产生层裂 ,可显著改善顶煤的可放性
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| 关 键 词： | 孔隙瓦斯压力 急倾斜煤层 放顶煤 作用机理 采煤 |
| 修稿时间： | 1999-10-20 |
Action mechanism analyzing of gas pressure in the top coal caving of steep seam |
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| WANG Wei-jun,XIONG Ren-qin. Action mechanism analyzing of gas pressure in the top coal caving of steep seam[J]. Journal of China Coal Society, 2000, 25(3): 248-251 |
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| Authors: | WANG Wei-jun XIONG Ren-qin |
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| Abstract: | The connection between porosity gas pressure in coal seam and top coal caving characteristics of steep seam is analyzed by fluid mechanics on coal and rock.The porosity gas pressure can reduce the strength and elastic modulus of coal.Making use of the coal fracture model gas pressure forms,it will be found that the fracture in the form of layers of top coal happen with certain gas pressure, thus the top coal caving characteristics can obviously be improved. |
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| Keywords: | porosity gas pressure roof coal caving of steep seam top coal caving characteristics action mechanism |
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