| 回采巷道煤柱临界宽度理论计算方法 |
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| 引用本文： | 贾喜荣,王丽.回采巷道煤柱临界宽度理论计算方法[J].太原理工大学学报,2011,42(1):102-103. |
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| 作者姓名： | 贾喜荣 王丽 |
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| 作者单位： | 太原理工大学,矿业工程学院,太原,030024 |
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| 摘 要： | 为填补长壁工作面回采巷道煤柱合理尺寸设计的理论计算之空白,根据Hustrulid(1976)提出的煤体实验室标准试件强度值与现场临界立方体试件强度值的计算公式和Bieniaws-ki(1969)煤柱强度计算公式,推导出了回采巷道煤柱临界宽度理论计算公式。该计算方法及其理论解,在回采巷道煤柱合理尺寸的确定方面具有重要的理论价值和工程应用价值。
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| 关 键 词： | 煤柱临界宽度 煤柱强度 回采巷道 |
The Theoretical Calculation Method of Critical Width for the Coal Pillar of the Roadway |
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| JIA Xi-rong,WANG Li.The Theoretical Calculation Method of Critical Width for the Coal Pillar of the Roadway[J].Journal of Taiyuan University of Technology,2011,42(1):102-103. |
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| Authors: | JIA Xi-rong WANG Li |
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| Institution: | JIA Xi-rong,WANG Li(College of Mining Engineering of TUT,Taiyuan 030024,China) |
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| Abstract: | Currently,in the decision of rational coal pillar size with the long-wall mining roadway,there is no corresponding design calculation method and design code to be referred.The authors obtained the calculation formulas of the critical width for the coal pillar according to the intensity values of the standard specimen in coal laboratory and the on-scene critical cube specimen put forward by Hustrulid,and calculation formulas of the coal pillar strength by Bieniawski.This calculation method and its theoretica... |
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| Keywords: | critical width of the coal pillar coal pillar strength roadway |
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