倾斜特厚煤层综放带压开采底板破坏特征研究

doi:10.13722/j.cnki.jrme.2014.1450

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摘要采动底板破坏特征，对于带压开采具有重要意义。以文明矿为试验矿井，采用分段注水装置、钻孔电视系统、地质雷达对大采深特厚倾斜煤层综放开采底板破坏深度进行探测，并对采动前后底板裂隙数量与钻孔深度、裂隙宽度与数量进行数字化分析，并就采动后底板应力变化和塑性区特征进行数值模拟试验，数据结果表明：文明矿大采深倾斜特厚煤层综放开采底板破坏深度为30.1 m；采动前裂隙数量较小，而采动后裂隙数量呈上升—下降—不变的形态分布；采动前底板裂隙宽度以小于5 mm为主，采动后裂隙宽度以16～20 mm 为主；工作面下方支承压力集中系数大于上方；底板垂直应力曲线在倾斜方向上呈“勺形”分布且卸压程度随着底板深度增加而逐渐降低并形成了较大的塑性破坏区。

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	陈继刚1
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	熊祖强3
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	李卉4
	于洋5
	聂百胜1
	王世东4
	王晓蕾4

关键词 ：采矿工程, 倾斜煤层, 综放开采, 地质雷达

Abstract：Characteristics of floor failure is very significance for mining under pressure. Taking Wenming coal as the experimental mine，by using the equipment which is sealed two ends by capsules in borehole，affused measurable water between the two capsules and borehole televiewer system and ground penetrating radar，height of floor under large mining depth inclined and extra thick coal seam in fully-mechanized top coal caving face is monitored and analyzed through the digital relationship of fractures around mining such as numbers and depth，numbers and width. At the same time，numerical model experiment of stress change and characteristic of plastic zone are carried out. The results show that：(1) Height of floor under large mining depth inclined and extra thick coal seam in fully-mechanized top coal caving face is 30.1 m；(2) The fracture width is mainly with less than 5 mm before mining and the fracture width is mainly 16–20 mm after mining；(3) The number of fractures is small before mining，with the mining of working face，the number of fractures is on a rising-down-invariant trend；(4) The abutment pressure concentrated coefficient of working face inferior is greater than the above；(5) Floor vertical stress curve on the tilt direction distribution is“spoon”shapes，with the depth of floor increased the pressure release level is decreased and to form the large plastic failure zone.

Key words： mining engineering inclined coal seam fully mechanized sublevel caving mining ground penetrating radar

引用本文:

陈继刚1，2，熊祖强3，4，李卉4，于洋5，聂百胜1，王世东4，王晓蕾4. 倾斜特厚煤层综放带压开采底板破坏特征研究[J]. 岩石力学与工程学报, 2016, 35(S1): 3018-3023.
CHEN Jigang1，2，XIONG Zuqiang3，4，LI Hui4，YU Yang5，NIE Baisheng1，WANG Shidong4，WANG Xiaolei4. Failure characteristics of floor under predssure inclined and extra thick coal seam in full-mechanized top coal caving faces. , 2016, 35(S1): 3018-3023.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.1450 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS1/3018

[1] 王作宇，刘鸿泉. 承压水上采煤[M]. 北京：煤炭工业出版社，1992：5–8.(WANG Zuoyu，LIU Hongquan. Coal mining above confined aquifer[M]. Beijing：China Coal Industry Publishing House，1992：5–8.(in Chinese))

[2] 彭苏萍，王金安. 承压水体上安全采煤[M]. 北京：煤炭工业出版社，2001：91–111.(PENG Suping，WANG Jin¢an. Safety coal mining above the confined aquifer[M]. Beijing：China Coal Industry Publishing House，2001：91–111.(in Chinese))

[3] 赵铁锤. 华北地区奥灰水综合防治技术[M]. 北京：煤炭工业出版社，2006：1–19.(ZHAO Tiechui. Integrated control technology for Ordovician limestone water in North China[M]. Beijing：China Coal Industry Publishing House，2006：1–19.(in Chinese))

[4] 靳德武. 我国煤层底板突水问题的研究现状及展望[J]. 煤炭科学技术，2002，30(6)：1–4.(JIN Dewu. Research status and outlook of water outburst from seam floor in China coal mines[J]. Coal Science and Technology，2002，30(6)：1–4.(in Chinese))

[5] 李化敏，付凯. 煤矿深部开采面临的主要技术问题及对策[J]. 采矿与安全工程学报，2006，23(4)：468–471.(LI Huamin，FU Kai. Some major technical problems and countermeasures for deep mining[J]. Journal of Mining and Safety Engineering，2006，23(4)：468–471.(in Chinese))

[6] 杨天鸿，唐春安，谭志宏，等. 岩体破坏突水模型研究现状及突水预测预报研究发展趋势[J]. 岩石力学与工程学报，2007，26(2)：268–277.(YANG Tianhong，TANG Chun¢an，TAN Zhihong，et al. State of the art of inrush models in rock mass failure and development trend for prediction and forecast of groundwater inrush[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(2)：268–277.(in Chinese))

[7] 徐智敏. 深部开采底板破坏及高承压突水模式、前兆与防治[博士学位论文][D]. 徐州：中国矿业大学，2010.(XU Zhimin. Mining- induced floor failure and the model，precursor and prevention of confined water inrush with high pressure in deep mining[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2010.(in Chinese))

[8] 牛建立. 煤层底板采动岩水祸合作用与高承压水体上安全开采技术研究[博士学位论文][D]. 西安：中煤科工集团西安研究院，2008.(NIU Jianli. A study on coupling effect between rock and water in coal Floor And safety mining technology under high groundwater pressure[Ph. D. Thesis][D]. Xi¢an：Xi¢an Research Institute of China Coal Technology and Engineering Group Corp.，2008.(in Chinese))

[9] 伊立明. 深部煤层开采底板突水机理基础实验研究[博士学位论文][D]. 青岛：山东科技大学，2010.(YI Liming.Basic experimental study on water-inrush mechanism of floor in deep mining[Ph. D. Thesis][D]. Qingdao：Shandong University of Seienceand Technology，2010.(in Chinese))

[10] 弓培林，胡耀青，赵阳升. 带压开采底板变形破坏规律的三维相似模拟研究[J]. 岩石力学与工程学报，2005，24(23)：4 396–4 402. (GONG Peilin，HU Yaoqing，ZHAO Yangsheng. Three-dimensional simulation study on law of deformation and breakage of coal floor on mining above aquifer[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(23)：4 396–4 402.(in Chinese))

[11] 姜耀东，吕玉凯，赵毅鑫，等. 承压水上开采工作面底板破坏规律相似模拟试验[J]. 岩石力学与工程学报，2011，30(8)：1 571–1 579. (JIANG Yaodong，LU Yukai，ZHAO Yixin，et al. Similar simulation test for breakage law of working face floor in coal mining above aquifer[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(8)：1 571–1 579.(in Chinese))

[12] 刘树才，刘鑫明，姜志海，等. 煤层底板导水裂隙演化规律的电法探测研究[J]. 岩石力学与工程学报，2009，28(2)：348–356.(LIU Shucai，LIU Xinming，JIANG Zhihai，et al. Research on electrical prediction for evaluating water conducting fracture zones in coal seam floor[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(2)：348–356.(in Chinese))

[13] 徐智敏，孙亚军，巩思园，等. 高承压水上采煤底板突水通道形成的监测与数值模拟[J]. 岩石力学与工程学报，2012，31(8)：1 698– 1 704.(XU Zhimin，SUN Yajun，GONG Siyuan，et al. Monitoring and numerical simulation of formation of water inrush pathway caused by coal mining above confined water with high pressure[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(8)：1 698– 1 704.(in Chinese))

[14] 冯梅梅，茅献彪，白海波，等. 承压水上开采煤层底板隔水层裂隙演化规律的试验研究[J]. 岩石力学与工程学报，2009，28(2)：336–341.(FENG Meimei，MAO Xianbiao，BAI Haibo，et al. Experimental research on fracture evolution law of water-resisting strata in coal seam floor above aquifer[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(2)：336–341.(in Chinese))

[15] 孙建，王连国，唐芙蓉，等. 倾斜煤层底板破坏特征的微震监测[J]. 岩土力学，2011，32(5)：1 589–1 595.(SUN Jian，WANG Lianguo，TANG Furong，et al. Microseismic monitoring failure characteristeristics of inclined coal seam floor[J]. Rock and Soil Mechanics，2011，32(5)：1 589–1 595.(in Chinese))

[16] 孙建. 倾斜煤层底板破坏特征及突水机理研究[博士学位论文][D]. 徐州：中国矿业大学，2011.(SUN Jian. Failure characteristics and water-inrush mechanism of an inclined coal seam floor[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2011. (in Chinese))