| 三软煤层综放回采巷道底板变形破坏实测 |
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| 引用本文： | 朱术云,鞠远江,赵振中,刘德乾. 三软煤层综放回采巷道底板变形破坏实测[J]. 煤炭科学技术, 2008, 36(10) |
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| 作者姓名： | 朱术云 鞠远江 赵振中 刘德乾 |
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| 作者单位： | 中国矿业大学资源与地球科学学院;郑州煤炭工业(集团)有限责任公司煤矿防治水部; |
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| 摘 要： | 为了研究郑州矿区采动底板变形破坏情况,对郑州矿区超化煤矿22121(东)综放工作面上下巷道钻场所布置钻孔的应变实测,得出了三软煤层巷道底板采动变形破坏的深度、层位及其受采动煤壁前方应力峰值的宽度和影响的范围,受超前应力集中的影响,下巷的变形破坏深度和程度均大于上巷.研究结果表明,在正常采动情况下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,主采煤层底板中段灰岩组(L7和L8灰)对应力分布和变形破坏起到了重要控制作用.
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| 关 键 词： | 三软煤层 综放开采 应变实测 变形破坏 |
Site measurement on floor deformation and failure of mining gateways for fully mechanized top coal caving mining face in seam with soft roof,coal and floor |
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| ZHU Shu-yun JU Yuan-jiang ZHAO Zhen-zhong LIU De-qian. Site measurement on floor deformation and failure of mining gateways for fully mechanized top coal caving mining face in seam with soft roof,coal and floor[J]. Coal Science and Technology, 2008, 36(10) |
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| Authors: | ZHU Shu-yun JU Yuan-jiang ZHAO Zhen-zhong LIU De-qian |
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| Affiliation: | ZHU Shu-yun~1 JU Yuan-jiang~1 ZHAO Zhen-zhong~2 LIU De-qian~1 (1.School of Resources , Geoscienees,China Uninersity of Mining , Technology,Xuzhou 221116,China,2.Mine Water Prevention , Contral Department,Zhengzhou Coal Industrial Group Corporation Ltd.,Zhengzhou 450006,China) |
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| Abstract: | In order to research the deformation and failure of the mining floor in Zhengzhou mining area,the strain site measurements were conducted with the boreholes drilled in the up and down gateways of the No.22121 East fully mechanized top coal caving mining face in Chaohua Mine of Zhengzhou Mining Area.The mining deformation failure depth and strata location of the seam floor in the soft roof,coal, and floor gateway were obtained as well as the width and influence scope of the stress peat value in the front of ... |
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| Keywords: | soft roof coal and floor seam fully mechanized top coal caving mining strain site measurement deformation failure |
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