近距离煤层上行开采巷道合理布局研究

doi:10.13722/j.cnki.jrme.2017.0719

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Abstract In order to obtain the reasonable layout of roadways in the upper coal seam，the morphology characteristics of fractured zone and the concentrated stress distribution in surrounding rock induced by the mining of lower coal seam were studied with the methods of theoretical analysis，field testing and numerical simulation. This study was based on the upward mining of #2 and #4 close coal seams in No. 6 mining district of Zhaizhen mine. The results showed that the fractured zone was developed upward with the strata group as a unit under the condition of overlying composite strata structure and this forming mechanism was also verified in the field testing. The spatial morphology of fractured zone presented an irregular saddle shape tilted to the inside of the goaf with a boundary angle of approximately 75°–78°. The sub-regional rupture characteristic from bottom to top within the fractured zone was obvious. The upper #2 seam belongs to the general crack area located at the top of fractured zone. The roadway set in this areas is feasible. According to the results of numerical simulation，the broken position of the upper #2 seam was about 3–5 m on the goaf side，and the range of internal stress field was 6–10 m on the goaf side. Two schemes of roadway layout of inner stagger mode and outward stagger mode were proposed in upper coal seam based on the comprehensive study to the height，shape and sub-regional rupture characteristic of the fractured zone and the concentrated stress distribution. This layout effectively avoided the influence of fractured zone and concentrated stress field. The field application achieved good effect.

Key words： mining engineering upward mining roadways layout fractured zone morphology composite strata structure stress field distribution

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	Articles by authors
	HUANG Wanpeng1
	2
	XING Wenbin1
	ZHENG Yongsheng3
	LI Chao1

Cite this article:

HUANG Wanpeng1,2,XING Wenbin1, et al. Reasonable layout of roadways for upward mining technology of close coal seams[J]. , 2017, 36(12): 3028-3039.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.0719 OR http://www.rockmech.org/EN/Y2017/V36/I12/3028

[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)：1 990-1 995.(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]	张宏伟，韩军，海立鑫，等. 近距煤层群上行开采技术研究[J]. 采矿与安全工程学报，2013，30(1)：63-67.(ZHANG Hongwei，HAN Jun，HAI Lixin，et al. Study on closed multiple-seam in the ascending mining technology[J]. Journal of Mining and Safety Engineering，2013，30(1)：63-67.(in Chinese))
[15]	黄万朋，高延法，王波，等. 覆岩组合结构下导水裂隙带演化规律与发育高度分析[J]. 采矿与安全工程学报，2017，34(2)：330-335.(HUANG Wanpeng，GAO Yanfa，WANG Bo，et al. Evolution rule and development height of permeable fractured zone under combined-strata structure[J]. Journal of Mining and Safety Engineering，2017，34(2)：330-335.(in Chinese))
[16]	尹增德. 采动覆岩破坏特征及其应用研究[博士学位论文][D]. 青岛：山东科技大学，2007.(YIN Zengde. The failure characteristics of overburden strata induced by mining and their applications[Ph. D. Thesis][D]. Qingdao：Shandong University of Science and Technology，2007.(in Chinese)) " target="_blank">
[17]	高延法，黄万朋，刘国磊，等. 覆岩导水裂缝与岩层拉伸变形量的关系研究[J]. 采矿与安全工程学报，2012，29(3)：301-306.(GAO Yanfa，HUANG Wanpeng，LIU Guolei，et al. The relationship between permeable fractured zone and rock stratum tensile deformation[J]. Journal of Mining and Safety Engineering，2012，29(3)：301-306.(in Chinese))
[5]	GHABRAIE B，GHABRAIE K，REN G，et al. Numerical modelling of multistage caving processes：insights from multi-seam longwall mining-induced subsidence[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2017，41(7)：959-975. " target="_blank">
[8]	冯国瑞，闫永敢，杨双锁，等. 长壁开采上覆岩层损伤范围及上行开采的层间距分析[J]. 煤炭学报，2009，34(8)：1 032-1 036.(FENG Guorui，YAN Yonggan，YANG Shuangsuo，et al. Analysis on the damage zone of overlying strata and safety layer distance on the upward mining above the longwall goaf[J]. Journal of China Coal Society，2009，34(8)：1 032-1 036.(in Chinese))
[12]	王成，张农，李桂臣，等. 上行开采顶板不同区域巷道稳定性控制原理[J]. 中国矿业大学学报，2012，41(4)：543-550.(WANG Cheng，ZHANG Nong，LI Guichen，et al. Control principles for roadway roof stabilization in different zones during ascending mining[J]. Journal of China University of Mining and Technology，2012，41(4)：543-550.(in Chinese))
[9]	冯国瑞，闫旭，王鲜霞，等. 上行开采层间岩层控制的关键位置判定[J]. 岩石力学与工程学报，2009，28(增2)：3 721-3 726.(FENG Guorui，YAN Xu，WANG Xianxia，et al. Determination of key positions of strata controlling in rocks between coal seams for upward mining[J]. Chinese Journal of Rock Mechanics and Engineering， 2009，28(Supp.2)：3 721-3 726.(in Chinese))
[13]	王成，杜泽生，张念超，等. 上行开采顶板煤巷围岩稳定性控制技术研究[J]. 采矿与安全工程学报，2012，29(2)：220-225.(WANG Cheng，DU Zesheng，ZHANG Nianchao，et al. Study on surrounding rock control for mining roadway of the overlying protected seam in ascending de-stressed mining[J]. Journal of Mining and Safety Engineering，2012，29(2)：220-225.(in Chinese))
[4]	GHABRAIE B，REN G，SMITH J V. Characterizing the multi-seam subsidence due to varying mining configuration，insights from physical modeling[J]. International Journal of Rock Mechanics and Mining Sciences，2017，(93)：269-279. " target="_blank">
[10]	姜耀东，杨英明，马振乾，等. 大面积巷式采空区覆岩破坏机理及上行开采可行性分析[J]. 煤炭学报，2016，41(4)：801-807.(JIANG Yaodong，YANG Yingming，MA Zhenqian，et al. Breakage mechanism of roof strata above widespread mined-out area with roadway mining method and feasibility analysis of upward mining[J]. Journal of China Coal Society，2016，41(4)：801-807.(in Chinese))
[14]	宋振骐. 实用矿山压力控制[M]. 徐州：中国矿业大学出版社，1988：64-65.(SONG Zhenqi. Practical pressure control of mines[M]. Xuzhou：China University of Mining and Technology Press，1988：64-65.(in Chinese)) " target="_blank">
[18]	张燕，纪洪广，王金安. 不整合地层下煤层开采覆岩裂隙场发育特征[J]. 煤炭学报，2011，36(11)：1 795-1 800.(ZHANG Yan，JI Hongguang，WANG Jin?an. Fracture development due to coal mining under unconformable overlying strata[J]. Journal of China Coal Society，2011，36(11)：1 795-1 800.(in Chinese))
[19]	TAN Y L，LIU X S，NING J G，et al. In situ investigations on failure evolution of overlying strata induced by mining multiple coal seams[J]. Geotechnical Testing Journal，2017，40(2)：1-14. " target="_blank">
[3]	杜计平，汪理全. 煤矿特殊开采方法[M]. 徐州：中国矿业大学出版社，2003：1-18.(DU Jiping，WANG Liquan. Special mining method of coal mine[M]. Xuzhou：China University of Mining and Technology Press，2003：1-18.(in Chinese)) " target="_blank">
[6]	SUCHOWERSKA A M，MERIFIELD R S，CARTER J P. Vertical stress changes inmulti-seam mining under supercritical longwall panels[J]. International Journal of Rock Mechanics and Mining Sciences，2013，61：306-320. " target="_blank">
[7]	蒋金泉，孙春江，尹增德，等. 深井高应力难采煤层上行卸压开采的研究与实践[J]. 煤炭学报，2004，29(1)：1-6.(JIANG Jinquan，SUN Chunjiang，YIN Zengde，et al. Study and practice of bottom slicing relieving mining in condition of trouble coal seams with high ground stress under deep coal mine[J]. Journal of China Coal Society，2004，29(1)：1-6.(in Chinese))
[11]	张农，袁亮，王成，等. 卸压开采顶板巷道破坏特征及稳定性分析[J]. 煤炭学报，2011，36(11)：1 784-1 789.(ZHANG Nong，YUAN Liang，WANG Cheng，et al. Deformation characteristics and stability analysis of roof roadway in distressed mining[J]. Journal of China Coal Society，2011，36(11)：1 784-1 789.(in Chinese))
[20]	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 Xiangping，et al. Characteristics of surrounding rock deformation and reinforcement technology of retained entry working face with multi-entry layout[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(10)：2 022-2 036.(in Chinese)) " target="_blank">
[21]	张百胜，杨双锁，康立勋，等. 极近距离煤层回采巷道合理位置确定方法探讨[J]. 岩石力学与工程学报，2008，27(1)：97-101. (ZHANG Baisheng，YANG Shuangsuo，KANG Lixun，et al. Discussion on method for determining reasonable position of roadway for ultra-close multi-seam[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(1)：97-101.(in Chinese))