| 薄基岩厚表土煤层开采的极限基岩厚度分析 |
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| 引用本文： | 金桃,柏建彪,方新秋,黄汉富.薄基岩厚表土煤层开采的极限基岩厚度分析[J].煤,2007,16(3):4-6,51. |
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| 作者姓名： | 金桃 柏建彪 方新秋 黄汉富 |
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| 作者单位： | 中国矿业大学,能源与安全工程学院,江苏,徐州,221008 |
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| 摘 要： | 通过数值模拟和现场实测的方法,研究了司马矿薄基岩厚煤层开采条件下,保证安全开采的极限基岩厚度。数值模拟研究结果表明,在表土全为砂土情况下,保证安全开采的极限基岩厚度为40 m;在基岩厚度20 m粘土厚度40 m时两者可形成较为稳定的结构,极限基岩厚度为20 m;研究结果在司马矿1101工作面的开采试验中得到了验证。
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| 关 键 词： | 薄基岩 极限基岩厚度 粘土 支承压力 厚煤层 |
| 文章编号： | 1005-2798（2007）03-0004-03 |
| 收稿时间： | 2006-11-14 |
| 修稿时间： | 2006-11-14 |
The Analysis of Utmost Bedrock Ply at Thin Bedrock and Thick Surface Soil Coal Seam Mining |
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| JIN Tao,BO Jian-biao,FANG Xin-qiu,HUANG Han-fu.The Analysis of Utmost Bedrock Ply at Thin Bedrock and Thick Surface Soil Coal Seam Mining[J].Coal,2007,16(3):4-6,51. |
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| Authors: | JIN Tao BO Jian-biao FANG Xin-qiu HUANG Han-fu |
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| Affiliation: | Energy Sources and Safety Engineering Institute, China Mining University, Xuzhou 221008, China |
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| Abstract: | Through the way of numerical simulation and locale measurement,we found the safety utmost bedrock ply at the condition of thin bedrock and thick coal seam in Sima Coal Mine.This result indicated that the safety mining utmost bedrock ply were 40m when surface soil are all sand soil and utmost bedrock ply were 20m when the bedrock' ply are 20m and clay are 40m.This result were validated at the mining experiment in Sima Coal Mine 1101 working face. |
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| Keywords: | thin bedrock utmost bedrock ply clay abutment pressure thick coal seam |
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