无煤柱自成巷短臂梁顶板补偿支护力设计方法及其影响因素分析

doi:10.13722/j.cnki.jrme.2022.0500

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摘要为实现无煤柱自成巷开采条件下短臂梁顶板结构安全稳定，研究短臂梁顶板结构平衡机制及其动态演化机制，明确锚索的补偿支护作用机制，利用Hoek-Brown强度准则和塑性力学中的上限分析方法分析锚索支护作用下短臂梁顶板围岩的冒落破坏机制，推导短臂梁顶板在摩擦垮落、动压影响、成巷稳定3个阶段的锚索补偿支护力计算公式，形成无煤柱自成巷短臂梁顶板补偿支护力设计方法。在此基础上，建立敏感性分析指标，分析不同参数对锚索补偿支护力的影响程度。研究表明：围岩应力、切缝参数、巷道宽度是锚索补偿支护力的主控因素，其中围岩应力为最敏感指标，据此提出短臂梁顶板稳定性控制相关工程建议。研究成果在新泰煤矿N00工法5101工作面运输巷进行了应用，现场应用效果良好。

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	杨军1
	刘奔1
	周鹏1
	黄龙2
	张俊1
	侯世林1
	王亚军1
	3
	陈菲4

关键词 ：采矿工程, 无煤柱自成巷, 切顶短臂梁, 上限法, 锚索设计, 影响因素

Abstract：In order to realize the safety and stability of the short arm beam roof structure in non-pillar mining with automatically formed roadway. The balance mechanism and dynamical evolution of the roof structure of the short-arm beam are analyzed，and the mechanism of compensating the support of the anchor cable is clarified. The Hoek-Brown strength criterion and the upper bound analysis method in plastic mechanics are used to analyze the caving failure mechanism of the surrounding rock of the short arm beam roof under the support of the anchor cable. Therefore，the calculation formula of anchor cable compensation support force of short arm beam roof in three stages of caving friction, dynamic pressure effect and roadway stability is deduced. In addition，a method for compensating the support force of a short arm beam roof in a self-forming roadway without coal pillars is developed. On this basis，the sensitivity analysis index is established and the influence of different parameters on the compensation support force of the anchor cable is analyzed. It is demonstrated that the surrounding rock stress，roof cutting parameters and roadway width are the main control factors for cable compensation support forces，with the surrounding rock stress being the most sensitive metric. Thus，the engineering suggestions for the stability control of short arm beam roof are put forward. The research results were applied in the transportation roadway of 5101 working face of N00 mining method in Xintai Coal Mine，and good effect of field application was verified.

Key words： mining engineering non-pillar mining with automatically formed roadway roof-cut short arm beam upper bound method anchor cable design influence factor

引用本文:

杨军1，刘奔1，周鹏1，黄龙2，张俊1，侯世林1，王亚军1，3，陈菲4. 无煤柱自成巷短臂梁顶板补偿支护力设计方法及其影响因素分析[J]. 岩石力学与工程学报, 2023, 42(4): 798-809.
YANG Jun1，LIU Ben1，ZHOU Peng1，HUANG Long2，ZHANG Jun1，HOU Shilin1，WANG Yajun1，3，CHEN Fei4. Design method of compensation support force of short arm beam roof in non-pillar mining with automatically formed roadway and #br# its influencing factors analysis. , 2023, 42(4): 798-809.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0500 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/I4/798

[9]	何满潮. 深部建井力学研究进展[J]. 煤炭学报，2021，46(3)：726-746.(HE Manchao. Research progress of deep shaft construction mechanics[J]. Journal of China Coal Society，2021，46(3)：726-746. (in Chinese))
[8]	杨军，魏庆龙，王亚军，等.切顶卸压无煤柱自成巷顶板变形机制及控制对策研究[J]. 岩土力学，2020，41(3)：989-998.(YANG Jun，WEI Qinglong，WANG Yajun，et al. Research on roof deformation mechanism and control countermeasures of self-contained roadway without coal pillar without coal pillar[J].Rock and Soil Mechanics，2020，41(3)：989-998.(in Chinese))
[14]	王炯，张正俊，朱天赐，等. 恒阻大变形锚索支护巷道变形机制模型试验研究[J]. 岩石力学与工程学报，2020，39(5)：927-937. (WANG Jiong，ZHANG Zhengjun，ZHU Tianci，et al. Model test study on deformation mechanisms of roadways supported by constant resistance and large deformation anchor cables[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(5)：927-937.(in Chinese))
[16]	WANG Q，JIANG B，WANG L，et al. Control mechanism of roof fracture in no-pillar roadways automatically formed by roof cutting and pressure releasing[J]. Arabian Journal of Geosciences，2020，13(6)：2 741-2 750.
[19]	JIANG B，WANG Q，LI S C，et al. The research of design method for anchor cables applied to cavern roof in water-rich strata based on upper-bound theory[J]. Tunnelling and Underground Space Technology，2016，53：120-127.
[25]	缪协兴，钱鸣高. 采场围岩整体结构与砌体梁力学模型[J]. 矿山压力与顶板管理，1995，(增1)：3-12.(LIAO Xiexing，QIAN Minggao. The overall structure of the stope wall rock and the mechanics model of masonry beam[J].Ground Pressure and Strata Control，1995，(Supp.1)：3-12.(in Chinese))
[27]	钱鸣高，石平五. 矿山压力与岩层控制[M]. 徐州：中国矿业大学出版社，2003：41-43.(QIAN Minggao，SHI Pingwu. Mining pressure and strata control[M]. Xuzhou：China University of Mining and Technology Press，2003：41-43.(in Chinese))
[6]	HE M C，ZHU G L，GUO Z B.Longwall mining “cutting cantilever beam theory”and 110 mining method in China——The third mining science innovation[J]. Journal of Rock Mechanics and Geotechnical Engineering，2015，7(5)：483-492.
[17]	GAO Y T，YANG Z M，CHENG Z Q，et al，Limit analysis of tunnel collapse according to the Hoek-Brown criterion and bolt parameter research[J]. Arabian Journal for Science and Engineering，2019，44(10)：8 171-8 180.
[4]	YANG J，WANG Q，HE M C，et al. Design principles and key technologies of gob side entry retaining by roof pre-fracturing[J]. Tunnelling and Underground Space Technology，2019，90：309-318.
[15]	张国锋，王二雨，许丽莹. 煤矿高恒阻大变形锚索受力特性、规律及应用研究[J]. 岩石力学与工程学报，2016，35(10)：2 033-2 043. (ZHANG Guofeng，WANG Eryu，XU Liying. Mechanical characteristics of high constant resistance and large deformation anchor rope in coal mines[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(10)：2 033-2 043.(in Chinese))
[26]	张继勋，姜弘道，任旭华. 岩体参数对隧洞围岩稳定性影响的敏感性分析[J]. 采矿与安全工程学报，2006，23(2)：169-172(ZHANG Jixun，JIANG Hongdao，REN Xuhua. Sensitivity analysis of mechanical parameters influencing stabilization of surrounding rocks of the tunnel[J]. Journal of Mining and Safety Engineering，2006，23(2)：169-172.(in Chinese))
[11]	HE M C，GONG W L，WANG J，et al. Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance[J]. International Journal of Rock Mechanics and Mining Sciences，2014，67(1)：29-42.
[22]	张学言. 岩土塑性力学[M]. 北京：人民交通出版社，1993：154-162.(ZHANG Xueyan. Geotechnical plastic mechanics[M]. Beijing：People?s Transportation Press，1993：154-162.(in Chinese))
[2]	何满潮，陈上元，郭志飚，等.切顶卸压沿空留巷围岩结构控制及其工程应用[J].中国矿业大学学报，2017，46(5)：959-969.(HE Manchao，CHEN Shangyuan，GUO Zhibiao，et al. Control of surrounding rock structure for gob-side entry retaining by cutting roof to release pressure and its engineering application[J]. Journal of China University of Mining and Technology，2017，46(5)：959-969.(in Chinese))
[13]	胡杰，李兆华，冯吉利，等.恒阻大变形锚索弹塑性解析模型及数值分析[J].岩石力学与工程学报，2019，38(增2)：3 565-3 574. (HU Jie，LI Zhaohua，FENG Jili，et al. Analytical model of elasto-plastic and numeric analysis for the constant resistance large deformation(NPR) cable[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(Supp.2)：3 565-3 574.(in Chinese))
[24]	王洪涛，王琦，李术才，等.基于上限理论的深部巷道顶板锚杆预紧力简化设计方法[J].煤炭学报，2015，40(7)：1 477-1 484. (WANG Hongtao，WANG Qi，LI Shucai，et al. A simplified design method of pre-tightening force of roof bolts in deep roadway based on upper bound theory[J]. Journal of China Coal Society，2015，40(7)：1 477-1 484.(in Chinese))
[1]	何满潮，马新根，王炯，等.中厚煤层复合顶板切顶卸压自动成巷工作面矿压显现特征分析[J].岩石力学与工程学报，2018，37(11)：2 425-2 434.(HE Manchao，MA Xingen，WANG Jiong，et al. Feature analysis of working face strata pressure with roof cutting pressure releasing in medium-thick seam and compound roof condition[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(11)：2 425-2 434.(in Chinese))
[3]	高玉兵，杨军，王琦，等.无煤柱自成巷预裂切顶机制及其对矿压显现的影响[J]. 煤炭学报，2019，44(11)：3 349-3 359.(GAO Yubing，YANG Jun，WANG Qi，et al. Mechanism of roof presplitting in a nonpillar mining method with entry automatically retained and its influence on the strata behaviors[J]. Journal of China Coal Society，2019，44(11)：3 349-3 359.(in Chinese))
[5]	WANG Y J，WANG Q，HE M C，et al. Stress and deformation evolution characteristics of gob-side entry retained by the N00 mining method[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources，2021，7(3)：8 401-8 418.
[7]	王亚军，何满潮，杨军，等.无煤柱自成巷“短臂梁”结构特征及变形计算分析[J]. 中国矿业大学学报，2019，48(4)：718-726. (WANG Yajun，HE Manchao，YANG Jun，et al. The structure characteristics and deformation of“short cantilever beam”using a non-pillar mining method with gob-side entry formed automatically[J]. Journal of University of Mining and Technology，2019，48(4)：718-726.(in Chinese))
[10]	何满潮，李晨，宫伟力，等. NPR 锚杆/索支护原理及大变形控制技术[J]. 岩石力学与工程学报，2016，35(8)：1 513-1 529.(HE Manchao，LI Chen，GONG Weili，et al. Support principles of NPR bolts/cables and control techniques of large deformation[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(8)：1 513-1 529. (in Chinese))
[12]	吕谦，陶志刚，李兆华，等. 恒阻大变形锚索弹塑性力学分析[J].岩石力学与工程学报，2018，37(4)：792-800.(LV Qian，TAO Zhigang，LI Zhaohua，et al. Elasto-plastic analysis of cables with large deformation[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(4)：792-800.(in Chinese))
[21]	HOEK E，BROWN E T. Underground excavations inrock[M]. London：Institute of Mining and Metallurgy，1980：1 013-1 035.
[23]	CHEN W F. Limit analysis and soil plasticity[M]. Amsterdam，The Netherlands：Elsevier Science，1974：263-281.
[18]	FRALDI M，GUARRACINO F. Limit analysis of collapse mechanisms in cavities and tunnels according to the Hoek-Brown failure criterion[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(4)：665-673.
[20]	李斌，刘艳章，林坤峰. 非线性Mohr-Coulomb准则适用范围及其改进研究[J]. 岩土力学，2016，37(3)：637-646.(LI Bin，LIU Yanzhang，LIN Kunfeng. Application scope of nonlinear Mohr-Coulomb criterion and its modification[J]. Rock and Soil Mechanics，2016，37(3)：637-646.(in Chinese))