非充分采动采空区与煤岩柱(体)耦合作用机制及应用

doi:10.13722/j.cnki.jrme.2016.1105

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (1679 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Mechanism of gob-pillar interaction for subcritical panels was studied against Zhenchengdi coal mine through theoretical analysis，physical modelling，numerical modelling and field observation. Different panel layouts were found to lead to the different shapes of panel and coal pillar. The gob behavior has the significant influence on the stress distribution and failure of the coal pillar which should not be ignored in the numerical modelling. The width of limit equilibrium zone of coal pillar is derived. When a slice of multiple longwall slices of a coal seam is being mined，the mining height is reduced leading to the reduction of the width of the limit equilibrium zone，and so are the high seam longwall mining and split-level longwall mining(SLM) due to their elevating section. The angle of break plays an important role in gob-pillar interaction. The angles of break were obtained and were used for numerical modelling. An expression for the panel width L，the span of the uppermost key stratum L1 and the angle of break θ is obtained. The numerical modelling shows that the more load the gob bears，the less the abutment pressure and vice versa，which is the result of the gob-pillar interaction for subcritical panels. The abutment pressure，stress concentration factor and failure zone were larger and the elevation of failure zone was lower if the influence of gob was not taken into account. According to the mechanism of gob-pillar interaction for subcritical panels，the air intake way was set under the gob edge(with roof along the gob rather than rib) in the least stressed zone in the entire panel system，and the air exit way was arranged along the roof，as such，the ground control problems for both gate roads are solved.

Key words： mining engineering subcritical panel interaction gob numerical modelling abutment pressure coal and rock pillar(mass)

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Pengfei1
	2
	ZHAO Jingli1
	WANG Zhiqiang1
	SUN Zhongwen1
	XU Chunhu1
	SONG Ziyu1
	SU Yue1

Cite this article:

WANG Pengfei1,2,ZHAO Jingli1, et al. Mechanism of gob-pillar interaction for subcritical panels and its application[J]. , 2017, 36(5): 1185-1200.

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2016.1105 OR http://www.rockmech.org/EN/Y2017/V36/I5/1185

[19]	赵景礼. 厚煤层错层位巷道布置采全厚采煤法的研究[J]. 煤炭学报，2004，29(2)：142-145.(ZHAO Jingli. Study on whole seam longwall mining with split-level gateroad[J]. Journal of China Coal Society，2004，29(2)：142-145.(in Chinese))
[37]	HOEK E，CARRANZA T，CORKUM B. Hoek-Brown criterion-2002 edition[C]// Proceedings of NARMS-TAC Conference. Toronto：[s. n.]，2002：267-273.
[26]	PAPPAS D M，MARK C. Behavior of simulated longwall gob material[M]. [S. l.]：US Department of the Interior，Bureau of Mines，1993.
[6]	康红普，颜立新，郭相平，等. 回采工作面多巷布置留巷围岩变形特征与支护技术[J]. 岩石力学与工程学报，2012，31(10)：2 022- 2 036.(KANG Hongpu，YAN Lixin，GUO Xingping，et al. Characteristics of surrounding rock deformation and reinforcement technology of retained entry in working face with multi-entry layout[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(10)：2 022-2 036.(in Chinese))
[8]	张广超，何富连. 深井高应力软岩巷道围岩变形破坏机制及控制[J]. 采矿与安全工程学报，2015，(4)：571-577.(ZHANG Guangchao，HE Fulian. Deformation failure mechanism of high stress deep soft roadway and its control[J]. Journal of Mining and Safety Engineering，2015，(4)：571-577.(in Chinese))
[2]	钱鸣高，石平五，许家林. 矿山压力与岩层控制[M]. 徐州：中国矿业大学出版社，2010：203-233.(QIAN Minggao，SHI Pingwu，XU Jialin. Ground pressure and strata control[M]. Xuzhou：China University of Mining and Technology Press，2010：203-233.(in Chinese))
[4]	郑百生，谢文兵，窦林名，等. 不规则煤柱作用下工作面开采的三维数值模拟[J]. 煤炭学报，2006，31(2)：137-140.(ZHENG Baisheng，XIE Wenbing，DOU Linming，et al. 3D simulation on caving of face affected by irregular pillar[J]. Journal of China Coal Society，2006，31(2)：137-140.(in Chinese))
[1]	杜计平，孟宪锐. 采矿学[M]. 徐州：中国矿业大学出版社，2009：92-104.(DU Jiping，MENG Xianrui. Mining[M]. Xuzhou：China University of Mining and Technology Press，2009：92-104.(in Chinese))
[3]	张广超，何富连. 大断面强采动综放煤巷顶板非对称破坏机制与控制对策[J]. 岩石力学与工程学报，2016，35(4)：806-818. (ZHANG Guangchao，HE Fulian. Asymmetric failure and control measures of large cross-section entry roof with strong mining disturbance and fully-mechanized caving mining[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(4)：806-818.(in Chinese))
[5]	刘金海，姜福兴，王乃国，等. 深井特厚煤层综放工作面区段煤柱合理宽度研究[J]. 岩石力学与工程学报，2012，31(5)：921-927.(LIU Jinhai，JIANG Fuxing，WANG Naiguo，et al. Research on reasonable width of segment pillar of fully mechanized caving face in extra-thick coal seam of deep shaft[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(5)：921-927.(in Chinese))
[7]	于斌，刘长友，杨敬轩，等. 大同矿区双系煤层开采煤柱影响下的强矿压显现机制[J]. 煤炭学报，2014，39(1)：40-46.(YU Bin，LIU Changyou，YANG Jingxuan，et al. Mechanism of strong pressure reveal under the influence of mining dual system of coal pillar in Datong mining area[J]. Journal of China Coal Society，2014，39(1)：40-46.(in Chinese))
[44]	MARK C. Pillar design methods for longwall mining[R]. Pittsburgh: Bureau of Mines，1990：53.
[9]	罗浩，李忠华，王爱文，等. 深部开采临近断层应力场演化规律研究[J]. 煤炭学报，2014，39(2)：322-327.(LUO Hao，LI Zhonghua，WANG Aiwen，et al. Study on the evolution law of stress field when approaching fault in deep mining[J]. Journal of China Coal Society，2014，39(2)：322-327.(in Chinese))
[10]	余伟健，王卫军. 矸石充填整体置换“三下”煤柱引起的岩层移动与二次稳定理论[J]. 岩石力学与工程学报，2011，30(1)：105-112.(YU Weijian，WANG Weijun. Strata movement induced by coal-pillar under three circumstances exchanged by gangue backfill and quadratic stability law[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(1)：105-112.(in Chinese))
[12]	童立元，刘松玉，邱钰，等. 高速公路下伏采空区问题国内外研究现状及进展[J]. 岩石力学与工程学报，2004，23(7)：1 198-1 202.(TONG Liyuan，LIU Songyu，QIU Yu，et al. Current research state of problems associated with mined-out regions under expressway and future development[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(7)：1 198-1 202.(in Chinese))
[13]	胡海峰，赵阳升，康建荣，等. 煤矿采空区跨度和延续时间与地面残余变形的相关规律及实证[J]. 岩石力学与工程学报，2008，27(1)：65-71.(HU Haifeng，ZHAO Yangsheng，KANG Jianrong，et al. Related laws and verification of mined-out area span，time and residual deformation[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(1)：65-71.(in Chinese))
[15]	白兰永. 冒落矸石自行充填沿空巷道矿压显现规律研究[J]. 金属矿山，2011，(6)：63-66.(BAI Lanyong. Research on the underground pressure behavior laws of reserving space for lane along the tunnel by self-filling with breakage wastes[J]. Metal Mine，2011，(6)：63-66.(in Chinese))
[17]	赵景礼. 厚煤层全高开采的三段式回采工艺[P]. 中国：2004100395750.(ZHAO Jingli. Triple sections mining technology (TSMT) in LMSG in thick coal seams[P]. China：2004100395750.(in Chinese))
[22]	ESTERHUIZEN G S，KARACAN C Ö. A methodology for determining gob permeability distributions and its application to reservoir modeling of coal mine longwalls[C]// SME 2007 Annual Meeting. [S. l.]：[s. n.]，2007：7-78.
[24]	缪协兴，茅献彪，胡光伟，等. 岩石(煤)的碎胀与压实特性研究[J]. 实验力学，1997(3)：394-400.(MIAO Xiexing，MAO Xianbiao，HU Guangwei，et al. Bulking and compaction characteristics of rock(coal)[J]. Journal of Experimental Mechanics，1997，(3)：394-400.(in Chinese))
[25]	马占国，郭广礼，陈荣华，等. 饱和破碎岩石压实变形特性的试验研究[J]. 岩石力学与工程学报，2005，24(7)：1 139-1 144.(MA Zhanguo，GUO Guangli，CHEN Ronghua，et al. An experimental study on the compaction of water-saturated over-broken rock[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(7)：1 139-1 144.(in Chinese))
[27]	YAVUZ H. An estimation method for cover pressure re-establishment distance and pressure distribution in the goaf of longwall coal mines[J]. International Journal of Rock Mechanics and Mining Science，2004，41(2)：193-205.
[29]	王宏伟，姜耀东，邓保平，等. 工作面动压影响下老窑破坏区煤柱应力状态研究[J]. 岩石力学与工程学报，2014，33(10)：2 056- 2 063.(WANG Hongwei，JIANG Yaodong，DENG Baoping，et al. Study of stress state of coal pillar in failure zone of coal seam under dynamic pressure of mining[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(10)：2 056-2 063.(in Chinese))
[34]	GHABRAIE B，REN G，ZHANG X，et al. Physical modelling of subsidence from sequential extraction of partially overlapping longwall panels and study of substrata movement characteristics[J]. International Journal of Coal Geology，2015，140：71-83.
[11]	白庆升，屠世浩，王方田，等. 浅埋近距离房式煤柱下采动应力演化及致灾机制[J]. 岩石力学与工程学报，2012，31(增2)：3 772 -3 778.(BAI Qingsheng，TU Shihao，WANG Fangtian，et al. Stress evolution and induced accidents mechanism in shallow coal seam in proximity underlying the room mining residual pillars[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3 772-3 778.(in Chinese))
[20]	刘长友，黄炳香，孟祥军，等. 超长孤岛综放工作面支承压力分布规律研究[J]. 岩石力学与工程学报，2007，26(增1)：2 761- 2 766. (LIU Changyou，HUANG Bingxiang，MENG Xiangjun，et al. Research on abutment pressure distribution law of overlength isolated fully-mechanized top coal caving face[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：2 761-2 766.(in Chinese))
[32]	杨科，谢广祥，常聚才. 不同采厚围岩力学特征的相似模拟实验研究[J]. 煤炭学报，2009，34(11)：1 446-1 450.(YANG Ke，XIE Guangxiang，CHANG Jucai. Experimental investigation into mechanical characteristics of surrounding rock with different mining thicknesses[J]. Journal of China Coal Society，2009，34(11)：1 446- 1 450.(in Chinese))
[36]	张羽强，黄庆享，严茂荣. 采矿工程相似材料模拟技术的发展及问题[J]. 煤炭技术，2008，27(1)：1-3.(ZHANG Yuqiang，HUANG Qingxiang，YAN Maorong. Development and problem of mining similar simulation experiment technique[J]. Mining Techniques，2008，27(1)：1-3.(in Chinese))
[39]	赵毅鑫，王涛，姜耀东，等. 基于Hoek-Brown参数确定方法的多煤层开采工作面矿压显现规律模拟研究[J]. 煤炭学报，2013，38(6)：970-976.(ZHAO Yixin，WANG Tao，JIANG Yaodong，at al. Application of Hoek-Brown criterion in numerical simulation of ground pressure features in multi-seam longwall mining[J]. Journal of China Coal Society，2013，38(6)：970-976.(in Chinese))
[41]	Itasca Consulting Group Inc. Fast Lagrangian analysis of continua in 3 dimension，version 5.0，user?s guide[R]. Minneapolis，Minnesota，USA：Itasca Consulting Group Inc.，2012.
[46]	全国一级建造师执业资格考试用书编写委员会编写. 全国一级建造师执业资格考试用书市政公用工程管理与实务[M]. 4版. 北京：中国建筑工业出版社，2015：36.(The Editorial Committee Of National License Examination for Primary Registered Construction Engineers. The book for national license examination for primary registered construction engineers，municipal utilities engineering management and practice[M]. 4th ed. Beijing：China Architecture and Building Press，2015：36.(in Chinese))
[14]	康红普，王金华，林健. 煤矿巷道锚杆支护应用实例分析[J]. 岩石力学与工程学报，2010，29(4)：649-664.(KANG Hongpu，WANG Jinhua，LIN Jian. Case studies of rock bolting in coal mine roadways[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(4)：649-664.(in Chinese))
[18]	ZHAO J L，WANG P F，SU Y. An innovative longwall mining technology in Tangshan coal mine，China[J]. Minerals，2017，7(1)：14. doi：10.3390/min7010014.
[30]	冯国瑞，任亚峰，王鲜霞，等. 白家庄煤矿垮落法残采区上行开采相似模拟实验研究[J]. 煤炭学报，2011，36(4)：544-550.(FENG Guorui，REN Yafeng，WANG Xianxia，et al. Experimental study on the upward mining of the left-over coal above gob area mined with caving method in Baijiazhuang coal mine[J]. Journal of China Coal Society，2011，36(4)：544-550.(in Chinese))
[42]	WILSON A H. Stress and stability in coal ribsides and pillars[C]// Proceedings of the First International Conference on Ground Control in Mining. Morgantown，WV：West Virginia University；1981：1-12.
[16]	赵景礼，吴健. 厚煤层错层位巷道布置采全厚采煤法[P]. 中国：ZL98100544.6.(ZHAO Jingli，WU Jian. Whole seam longwall mining with split-level gate roads(LMSG) in thick coal seams[P]. China：ZL98100544.6.(in Chinese))
[28]	PENG S S. Longwall Mining. 2nd ed[M]. Morgantown，WV，USA：[s. n.]，2006：32.
[40]	RocData. https://www.rocscience.com/rocscience/products/rocdata.
[21]	成云海，姜福兴，庞继禄. 特厚煤层综放开采采空区侧向矿压特征及应用[J]. 煤炭学报，2012，37(7)：1 088-1 093.(CHENG Yunhai，JIANG Fuxing，PANG Jilu. Research on lateral strata pressure characteristic in goaf of top coal caving in extra thick coal seam and its application[J]. Journal of China Coal Society，2012，37(7)：1 088-1 093.(in Chinese))
[23]	苏承东，顾明，唐旭，等. 煤层顶板破碎岩石压实特征的试验研究[J]. 岩石力学与工程学报，2012，31(1)：18-26.(SU Chengdong，GU Ming，TANG Xu，et al. Experiment study of compaction characteristics of crushed stones from coal seam roof[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(1)：18-26.(in Chinese))
[31]	戴华阳，翟厥成，胡友健. 山区地表移动的相似模拟实验研究[J]. 岩石力学与工程学报，2000，19(4)：501-504.(DAI Huayang，ZHAI Juecheng，HU Youjian. Physical modelling of surface movement of mountainous areas[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(4)：501-504.(in Chinese))
[33]	王怀文，周宏伟，左建平，等. 光测方法在岩层移动相似模拟实验中的应用[J]. 煤炭学报，2006，31(3)：278-281.(WANG Huaiwen，ZHOU Hongwei，ZUO Jianping，et al. Application of optical measurement method in strata movement simulation experiment[J]. Journal of China Coal Society，2006，31(3)：278-281.(in Chinese))
[35]	ZHU W S，LI Y，LI S C，et al. Quasi-three- dimensional physical model tests on a cavern complex under high in-situ stresses[J]. International Journal of Rock Mechanics and Mining Sciences，2011，48(2)：199-209.
[38]	HOEK E，DIEDERICHS M S. Empirical estimation of rock mass modulus[J]. International Journal of Rock Mechanics and Mining Sciences，2006，43(2)：203-215.
[43]	KING H J WHITTAKER B N. A review of current knowledge on roadway behaviour，especially the problems on which further information is required[C]// Proceedings of the Symposium on Strata Control In Roadway. London：IME；1971：73-90.
[45]	范新民，赵景礼，王玉宝，等. 错层位巷道布置采全厚采煤法在西山矿区的应用研究[M]. 北京：煤炭工业出版社，2013：131-138.(FAN Xinmin，ZHAO Jingli，WANG Yubao，et al. Whole seam longwall mining with split-level gateroads and its application in Xishan coal mine area[M]. Beijing：China Coal Industry Publishing House，2013：131-138.(in Chinese))