| 1.0 m极近距离煤层联合开采矿压规律 |
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| 引用本文： | 孙春东,杨本生,刘超.1.0 m极近距离煤层联合开采矿压规律[J].煤炭学报,2011,36(9):1423-1428. |
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| 作者姓名： | 孙春东 杨本生 刘超 |
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| 作者单位： | 1.中国矿业大学 矿业工程学院，江苏 徐州 221116；;
2.河北工程大学 资源学院，河北 邯郸 056038；;
3.冀中能源邯郸矿业集团有限公司，河北 邯郸 056002 |
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| 基金项目： | 河北省自然科学基金资助项目(E2011402046) |
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| 摘 要： | 针对阳邑煤矿1.0 m极近距离煤层联合开采条件，应用常规错距理论和岩层移动理论，研究了上部工作面采空区走向形成的稳压区和减压区范围，论证得出了1.0 m极近距离煤层联合开采下部工作面仅能布置于稳压区，并给出了上、下煤层工作面联合开采最佳走向错距范围为21~26 m。研究发现，在稳压区域回采的下部工作面采场覆岩形成了“双结构顶板”。矿压观测结果证明：在最佳错距范围内开采，上部工作面采空区形成的残余支压高应力区与下部工作面的超前支压高应力区之间，在推采方向存在2~3 m近原岩应力安全距离，避免了上、下高应力区域叠加，保证了下部工作面在稳压区域内回采，现场实施错距20~25 m，与理论分析接近。阳邑煤矿1.0 m极近距离煤层联合开采成功实施，在理论和技术上为类似条件的煤层提供了可靠的矿压数据和开采经验。
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| 关 键 词： | 1.0 m极近距离煤层 联合开采 合理错距 矿压规律 |
| 收稿时间： | 2011-05-19 |
Strata behavior regularity of 1.0 m very contiguous seams combined mining |
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| SUN Chun-dong,,YANG Ben-sheng,LIU Chao.Strata behavior regularity of 1.0 m very contiguous seams combined mining[J].Journal of China Coal Society,2011,36(9):1423-1428. |
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| Authors: | SUN Chun-dong YANG Ben-sheng LIU Chao |
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| Affiliation: | SUN Chun-dong1,2,3,YANG Ben-sheng2,LIU Chao2(1.School of Mines,China University of Mining and Technology,Xuzhou 221116,China,2.College of Resource Science,Hebei University of Engineering,Handan 056038,3.Jizhong Energy Handan MIG,Handan 056002,China) |
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| Abstract: | According to the condition of 1.0 m very contiguous seams combined mining at Yangyi Coal Mine,the range of stable-pressure and reduced-pressure which formed in the upper coal seam goaf were analysed through the theory of strata movement and conventional alternate distance theory,and it was pointed out that the lower working face can only be located in stable-pressure range and the reasonable alternate distance range in advancing direction was 21~26 m in condition of 1.0 m very contiguous seams combined mini... |
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| Keywords: | 1 0 m very contiguous seams combined mining reasonable alternate distance strata behavior regularity |
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