| “三软”煤层采动底板变形特征数值模拟与实测对比分析 |
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| 引用本文： | 朱术云,鞠远江,姜振泉. “三软”煤层采动底板变形特征数值模拟与实测对比分析[J]. 湖南科技大学学报(自然科学版), 2010, 25(1) |
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| 作者姓名： | 朱术云 鞠远江 姜振泉 |
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| 作者单位： | 中国矿业大学,资源与地球科学学院,江苏,徐州221116 |
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| 基金项目： | 国家自然科学基金(青年基金)项目，中国矿业大学"启航计划"资助项目，中国矿业大学青年基金 |
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| 摘 要： | 通过数值模拟系统研究了矿山压力作用下郑州矿区超化煤矿22061工作面"三软"煤层底板采动变形破坏的深度及其受岩层组合结构控制的变化规律.提出了在正常采动情况下软顶、厚的软煤和软底的"三软"煤层底板变形仅发生在一定浅部范围内,厚的软煤和软底对应力和变形的传播具有一定的缓冲作用.揭示了中段灰岩组(L7、8灰)对应力分布和变形破坏的重要控制作用,并与该面的实测相关结果进行了对比分析.这为豫西煤炭资源向深部开采所引起的底板水防治提供了部分力学的参考依据.
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| 关 键 词： | 矿山压力 " 三软" 煤层 采动底板变形 实测 数值模拟 |
Contrast analysis on deformation characteristic of theThree-softcoal seam mining floor by numerical simulation and field measurement |
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| ZHU Shu-yun,JU Yuan-jiang,JIANG Zhen-quan. Contrast analysis on deformation characteristic of theThree-softcoal seam mining floor by numerical simulation and field measurement[J]. Journal of Hunan University of Science & Technology(Natural Science Editon), 2010, 25(1) |
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| Authors: | ZHU Shu-yun JU Yuan-jiang JIANG Zhen-quan |
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| Affiliation: | ZHU Shu-yun,JU Yuan-jiang,JIANG Zhen-quan (School of Resources , Earth Science,China University of Mining, Technology,Xuzhou 221116,China) |
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| Abstract: | The depth of deformation and destruction and its feature controlled by combination structures of strata and geologic structure were systemically researched,and the law of variation was systematically researched on mining effect of thethree-soft coal seam floor by numerical analysis on 22061 working face in Chaohua colliery in Zhengzhou mining area.Deformation occures in a certain shallow depth on three-soft coal seam floor under the normal condition,thick soft coal seam and soft floor had a buffer action fo... |
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| Keywords: | underground pressure three-softcoal seam mining floor deformation field measurement numerical simulation |
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