近距离采空区下大倾角厚煤层开采矿压显现规律研究

doi:10.13722/j.cnki.jrme.2015.0500

Abstract
Figure/Table
References (14)
Related Citation (15)

Download: PDF (2081 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract How to complement effectively ground control has been an important and difficult issue in multiple fully-mechanized longwall mining for closed distance coal seams. Patterns of abutment pressure distribution，characteristics of hydraulic support force and condition under mined gob with longwall retreat mining should be synthetically investigated in order to prevent roof accidents such as rib spalling，roof fall and hydraulic support damage. Taking the No.5 coal seam and No.4 coal seam of Panbei mine as the background，the characteristics abutment pressure and the plastic zone in front of coal wall were deduced from theoretical formula. The mining-induced stress development，peak value and its location were obtained in front and background of No.12124 longwall panel under mined gob using FLAC3D to simulate surrounding rock mechanical characteristics. The characteristics of working resistance，maximum resistance and distribution of hydraulic support had been observed and obtained. Researches results show that abutment pressure evolution superposition mechanism has been revealed under closed distance and mine gob in thick coal seam and large dip angle with fully mechanized longwall mining. Based on comprehensively analyzing，ground control countermeasures have been put forward to increase working resistance，to push roof metal-mesh，and to enhance face guard with individual prop. And effective applications were obtained.

Key words： mining engineering closed distance coal seams mining-introduced stress superposition large inclination angle thick coal seam strata behaviors

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YANG Ke1
	2
	KONG Xiangyong1
	2
	LU Wei1
	2
	LIU Shuai1
	2

Cite this article:

YANG Ke1,2,KONG Xiangyong1, et al. STUDY OF STRATA PRESSURE BEHAVIORS WITH LONGWALL MINING IN LARGE INCLINATION AND THICK COAL SEAM UNDER CLOSED DISTANCE MINED GOB[J]. , 2015, 34(S2): 4278-4285.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0500 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/4278

[1]	张勇，刘传安，张西斌，等. 煤层群上行开采对上覆煤层运移的影响[J]. 煤炭学报，2011，36(12)：1990-1995.(ZHANG Yong，LIU Chuan¢an，ZHANG Xibin，et al. The influence of ascending mining on the movement character of overlying coal seam in coal seams group[J]. Journal of China Coal Society，2011，36(12)：1 990-1 995. (in Chinese))
[2]	谷拴成，陈盼，王建文. 近距离煤层采空区下工作面矿压显现规律研究[J]. 煤炭工程，2014，(5)：74-76.(GU Shuancheng，CHEN Pan，WANG Jianwen. Study on mine strata pressure behavior law of coal mining face under goaf of close distance seams[J]. Coal Mine Engineering，2014，(5)：74-76.(in Chinese))
[3]	薛吉胜，范志忠，黄志增. 极近距离煤层采空区下工作面两巷合理位置确定[J]. 煤炭科学技术，2012，40(4)：37-41.(XUE Jisheng，FAN Zhizhong，HUANG Zhizeng. Determination on rational location of two gateways in coal mining face under goaf with ultra short distance to mining seam[J]. Coal Science and Technology，2012，40(4)：37-41.(in Chinese))
[4]	李志华，华心祝，杨科，等. 采空区下孤岛工作面矿压显现规律研究[J]. 煤炭工程，2013，(11)：72-74.(LI Zhihua，HUA Xinzhu，YANG Ke，et al. Study on mine strata pressure behavior law of coal mining face in seam island under goaf[J]. Coal Mine Engineering，2013，(11)：72-74.(in Chinese))
[5]	郭敬中，孟祥瑞，高召宁. 大倾角煤层开采矿压规律数值模拟[J]. 煤矿开采，2011，101(4)：97-99.(GUO Jingzhong，MENG Xiangrui，GAO Zhaoning. Numerical simulation of underground pressure in mining large-inclined coal-seam[J]. Coal Mining Technology，2011，101(4)：97-99.(in Chinese))
[6]	屠洪盛，屠世浩，白庆升，等. 急倾斜煤层工作面区段煤柱失稳机理及合理尺寸[J]. 中国矿业大学学报，2013，42(1)：6-11.(TU Hongsheng，TU Shihao，BAI Qingsheng，et al. Instability of a coal pillar section located at a steep mining face：pillar size selection[J]. Journal of China University of Mining andTechnology，2013，42(1)：6-11.(in Chinese))
[7]	尹光志，李小双，郭文兵. 大倾角煤层工作面采场围岩矿压分布规律光弹性模量拟模型试验及现场实测研究[J]. 岩石力学与工程学报，2010，29(增1)：3336-3343.(YIN Guangzhi，LI Xiaoshuang，GUO Wenbing. Photo-eiastic experimental and field measurement study of ground pressure of surrounding rock of large dip angle working coal face[J]. ChineseJournalofRock MechanicsandEngineering，2010，29(Supp.1)：3336-3343.(in Chinese))
[8]	张金山，徐国华，马猛，等. 大倾角厚煤层综放工作面矿压显现规律[J]. 煤矿安全，2014，45(2)：181-183.(ZHANG Jinshan，XU Guohua，MA Meng，et al. Strata behavior law at fully mechanized caving face in thick coal seam with large dip angle[J]. Safety in Coal Mines，2014，45(2)：181-183.(in Chinese))
[9]	朱现磊，杨仁树，蔡志炯，等. 大倾角松软煤层综放开采矿压显现规律研究[J]. 煤炭科学技术，2014，42(5)：25-28.(ZHU Xianlei，YANG Renshu，CAI Zhijiong，et al. Study on strata pressure behavior features of fully-mechanized top coal mining in soft large inclined angle seam[J].Coal Science and Technology，2014，42(5)：25-28.(in Chinese))
[10]	朱卫兵.浅埋近距离煤层重复采动关键层结构失稳机理研究[博士学位论文][D]. 徐州：中国矿业大学，2010.(ZHU Weibing. Study on the instability mechanism of key strata structure in repeat mining of shallow close distance seams[Ph. D.Thesis][D].Xuzhou：China University of Mining and Technology，2010.(in Chinese))
[11]	谷拴成，陈盼，王建文，等. 采空区下煤层开采矿压显现规律实测研究[J]. 煤炭工程，2013，(9)：64-67.(GU Shuancheng，CHEN Pan，WANG Jianwen，et al. Field measurement study of mine strata pressure behavior law of coal mining face under goaf[J]. Coal Mine Engineering，2013，(9)：64-67.(in Chinese))
[12]	侯朝炯，马念杰. 煤层巷道两帮煤体应力和极限平衡区的探讨[J].煤炭学报，1989，14(4)：21-29.(HOU Chaojiong，MA Nianjie. Stress in in-seam roadway sides and limit equilibrium zone[J]. Journal of China Coal Society，1989，14(4)：21-29.(in Chinese))
[13]	谢广祥，杨科，刘全明.综放面倾向煤柱支承压力分布规律研究[J]. 岩石力学与工程学报，2006，25(3)：545-549.(XIE Guangxiang，YANG Ke，LIU Quanming. Study on distribution laws of stress in inclined coal pillar for fully-mechanized top-coal caving face[J]. ChineseJournalof Rock Mechanics and Engineering，2006，25(3)：545-549.(in Chinese))
[14]	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，2010：180-188.(QIAN Minggao，SHI Pingwu，XU Jialin. Mining pressure and strata control[M]. Xuzhou：China Mining University Press，2010：180-188.(in Chinese))