| 综放开采中顶煤对支架合理支护强度影响的数值分析 |
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| 引用本文： | 王永秀. 综放开采中顶煤对支架合理支护强度影响的数值分析[J]. 煤炭学报, 2006, 31(2): 145-149 |
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| 作者姓名： | 王永秀 |
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| 作者单位： | 煤炭科学研究总院,北京开采研究所,北京,100013 |
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| 摘 要： | 应用数值模拟方法分析了顶煤强度和刚度以及厚度对综放工作面支架支护强度的影响，由此得出，顶煤强度和刚度以及厚度对支架支护合理强度均产生了较大的影响：较软顶煤和坚硬顶煤要求支架支护强度较高，而中硬顶煤要求支架支护强度较低；顶煤厚度小于等于5 m时，支架合理强度主要受顶煤强度和刚度的影响，而顶煤厚度大于5 m时，支架支护合理强度同时受顶煤强度和刚度以及厚度的影响.
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| 关 键 词： | 综放开采 支架合理支护强度 顶煤强度及刚度 顶煤厚度 数值分析 |
| 文章编号： | 0253-9993(2006)02-0145-05 |
| 收稿时间： | 2005-07-18 |
| 修稿时间： | 2005-07-18 |
Numerical analysis of the effect of topcoal on reasonable supporting intensity of the powered support in fully-mechanized top coal minning |
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| WANG Yong-xiu. Numerical analysis of the effect of topcoal on reasonable supporting intensity of the powered support in fully-mechanized top coal minning[J]. Journal of China Coal Society, 2006, 31(2): 145-149 |
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| Authors: | WANG Yong-xiu |
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| Affiliation: | Beijing Research Institute of Coal Mining, China Coal Research Institute, Beijing 100013, China |
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| Abstract: | The effect of the strength and rigidity as well as thickness of top coal was analyzed on the supporting intensity for top coal mining face.It is concluded that the effect is large.Soft or hard top coal requires higher supporting intensity,while medium hard top coal requires lower.The reasonable intensity is affected mainly by the strength and rigidity of top coal when the thickness of top coal is less than or equals 5 m.It is affected by not only the strength and rigidity but also the thickness when the thickness is more than 5 m. |
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| Keywords: | fully mechanized top coal mining supporting intensity of support strength and rigidity of top coal thickness of top coal numerical analysis |
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