基于“三铰拱–弹簧”模型的复合底板巷道非对称底鼓机制及卸压控制

doi:10.13722/j.cnki.jrme.2022.0796

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摘要为解决动压巷道非对称底鼓变形难题和诱发动力学事件的隐患，基于巷道非对称变形几何形态和受力特征建立“三铰拱–弹簧支撑”模型，分析系统能量的耗散特征和系统总势能函数的尖点突变失稳的充要判别条件，研究表明底板在平衡曲线变形为两种形式，当沿路径I时变形是线性渐进的，不会发生大能量释放的动力学事件；当沿II路径时，变形是非线性的突发式底鼓，其中巷道底板的岩性、尺寸及侧应力是影响系统失稳的关键因素，可通过卸消压力方式来防治底板动力学事件发生。因此，提出切顶卸压底鼓控制技术，分析卸压机制，并在曹家滩煤矿开展卸压试验。研究表明，切顶是通过改变悬顶板支座形式来缩短顶板的垮落步距，进而来实现采场横、纵向压力卸载和集聚能量的释放，且横向压力卸压较纵向更为明显，进而有效控制了巷道底鼓变形。

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	徐晓鼎1
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	周跃进1
	高玉兵2
	付强2
	魏兴见2

关键词 ：采矿工程, 突变理论, 复合底板巷道, 非对称底鼓, 能量耗散, 切顶卸压

Abstract：In order to solve the problem of asymmetric floor heave of roadway and the potential of inducing kinetic events in dynamic pressure roadways，this paper established a“three-hinged arch-spring support”model based on the geometry and force characteristics of asymmetric roadway deformation，and analyzed the energy dissipation characteristics of the system and the sufficient discriminatory conditions for abrupt destabilization at the cusp of the total potential energy function of the system. The research showed that the deformation of the equilibrium curve takes two forms when along path I，the deformation is linear and progressive，and no large energy release kinetic event occurs. When along path II，the deformation is a non-linear and abrupt floor heave of roadway，where the lithology，dimensions and lateral stress of the roadway bottom are the key factors affecting the system instability，and the floor slab kinetic event can be prevented by pressure relief. Therefore，the technique of cutting the roof to unload the floor heave of roadway is proposed，the mechanism of pressure unloading is analyzed，and pressure unloading tests are carried out in the Caojiatan coal mine. The results prove that cutting the roof is done by changing the support form of the overhanging roof plate to shorten the collapse step of the roof plate，thus realizing the horizontal and vertical pressure unloading and the release of the collected energy in the quarry，and the horizontal pressure unloading is more obvious than the vertical，thus effectively controlling the deformation of roadway floor.

Key words： mining engineering catastrophe theory roadway with composite floor asymmetric floor heave energy dissipation roof cutting and pressure relief

引用本文:

徐晓鼎1，2，周跃进1，高玉兵2，付强2，魏兴见2. 基于“三铰拱–弹簧”模型的复合底板巷道非对称底鼓机制及卸压控制[J]. 岩石力学与工程学报, 2023, 42(6): 1421-1433.
XU Xiaoding1，2，ZHOU Yuejin1，GAO Yubing2，FU Qiang2，WEI Xingjian2. Asymmetric floor heave mechanism and pressure relief control in composite bottom-slab roadways based on the“three-hinged arch-spring”model. , 2023, 42(6): 1421-1433.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0796 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/I6/1421

[4]	何满潮. 深部的概念体系及工程评价指标[J]. 岩石力学与工程学报，2005，24(16)：2 854-2 858.(HE Manchao. Conception system and evaluaion evaluation index for deep engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 854-2 858.(in Chinese))
[6]	姜耀东，潘一山，姜福兴，等. 我国煤炭开采中的冲击地压机制和防治[J]. 煤炭学报，2014，39(2)：205-213.(JIANG Yaodong，PAN Yishan，JIANG Fuxing，et al. State of the art review on mechanism and prevention of coal bumps in China[J]. Journal of China Coal Society，2014，39(2)：205-213.(in Chinese))
[8]	潘一山，章梦涛. 用突变理论分析冲击地压发生的物理过程[J]. 阜新矿业学院学报：自然科学版，1992，11(1)：12-18.(PAN Yishan，ZHANG Mengtao. Analysis of physical process of rock burst by catastrophe theory[J]. Journal of Fuxin University of mining and technology：Natural Science Edition，1992，11(1)：12-18.(in Chinese))
[1]	钱鸣高，许家林. 煤炭开采与岩层运动[J]. 煤炭学报，2019，44(4)：973-984.(QIAN Minggao，XU Jialin. Behaviors of strata movement in coal mining[J]. Journal of China Coal Society，2019，44(4)：973-984.(in Chinese))
[11]	陈学华. 构造应力型冲击地压发生条件研究[博士学位论文][D]. 阜新：辽宁工程技术大学，2004.(CHEN Xuehua. Study on occurrence conditions of tectonic stress type rock burst[Ph. D. Thesis][D]. Fuxin：Liaoning University of Technology，2004.(in Chinese))
[14]	张晨阳，潘俊锋，夏永学，等. 底煤厚度对巷道底板冲击地压的影响机制及其应用分析[J]. 煤炭学报，2020，45(12)：3 984-3 994. (ZHANG Chenyang，PAN Junfeng，XIA Yongxue，et al. Influence mechanism and application analysis of bottom coal layer thickness on floor rock burst[J]. Journal of China Coal Society，2020，45(12)：3 984-3 994.(in Chinese))
[16]	龚少坤. 巷道底板冲击的尖点突变模型及判据[硕士学位论文][D]. 徐州：中国矿业大学，2018.(GONG Shaokun. Study of cusp catastrophe modle and criterion for the burst failure of roadway floor[M. S. Thesis][D]. Xuzhou：China University of Mining and Technology，2018.(in Chinese))
[18]	高明中，井欢庆. 巷道非对称底鼓的力学解析[J]. 安徽理工大学学报：自然科学版，2012，32(4)：38-43.(GAO Mingzhong，JING Huanqing. Mechanical analysis of asymmetric floor heave in roadway[J]. Journal of Anhui University of Science and Technology：Natural Science Edition，2012，32(4)：38-43.(in Chinese))
[21]	何满潮，高玉兵，杨军，等. 无煤柱自成巷聚能切缝技术及其对围岩应力演化的影响研究[J]. 岩石力学与工程学报，2017，36(6)：1 314-1 325.(HE Manchao，GAO Yubing，YANG Jun，et al. An energy-gathered roof cutting technique in no-pillar mining and its impact on stress variation in surrounding rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(6)：1 314-1 325.(in Chinese))
[24]	徐晓鼎. 岩层爆破切顶采动应力阻断机制及演化规律研究[硕士学位论文][D]. 徐州：中国矿业大学，2019.(XU Xiaoding. Study on the mechanism and evolution law of stress interruption during roof cutting by rock blasting[M. S. Thesis][D]. Xuzhou：China University of Mining and Technology，2019.(in Chinese))
[26]	何春光，魏兴见，刘江斌，等. 厚煤层综放工作面回风顺槽底鼓控制关键技术[J]. 煤炭技术，2022，41(7)：60-63.(HE Chunguang，WEI Xingjian，LIU Jiangbin，et al. Key technology of floor heave control at return air crossheading for fully mechanized caving face in thick coal seam [J]. Coal Technology，2022，41(7)：60-63.(in Chinese))
[28]	黄庆享，钱鸣高，石平五. 浅埋煤层采场老顶周期来压的结构分析[J]. 煤炭学报，1999，24(6)：581-585.(HUANG Qingxiang，QIAN Minggao，SHI Pingwu. Structural analysis of main roof periodic weighting in shallow seam stope[J]. Journal of China Coal Society，1999，24(6)：581-585.(in Chinese))
[2]	姜福兴，宋振骐，宋扬. 老顶的基本结构形式[J]. 岩石力学与工程学报，1993，12(4)：366-379.(JIANG Fuxing，Song Zhenqi，SONG Yang. Basic structural form of main roof[J]. Chinese Journal of Rock Mechanics and Engineering，1993，12(4)：366-379.(in Chinese))
[9]	窦林名，何学秋，REN Ting，等. 动静载叠加诱发煤岩瓦斯动力灾害原理及防治技术[J]. 中国矿业大学学报，2018，47(1)：48-59. (DOU Linming，HE Xueqiu，REN Ting，et al. Principle and prevention technology of coal and rock gas dynamic disaster induced by dynamic and static load superposition[J]. Journal of China University of Mining and Technology，2018，47(1)：48-59.(in Chinese))
[19]	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))
[3]	何满潮，谢和平，彭苏萍，等. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803-2 813.(HE Manchao，XIE Heping，PENG Suping，et al. Study on rock mechanics of deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803-2 813.(in Chinese))
[5]	谢和平，高峰，鞠杨. 深部岩体力学研究与探索[J]. 岩石力学与工程学报，2015，34(11)：2 161-2 178.(XIE Heping，GAO Feng，JU Yang. Research and development of rock mechanics in deep ground engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(11)：2 161-2 178.(in Chinese))
[7]	何满潮，高玉兵，杨军，等. 厚煤层快速回采切顶卸压无煤柱自成巷工程试验[J]. 岩土力学，2018，39(1)：254-264.(HE Manchao，GAO Yubing，YANG Jun，et al. Engineering experimentation of gob-side entry retaining formed by roof cutting and pressure release in a thick-seam fast-extracted mining face[J]. Rock and Soil Mechanics，2018，39(1)：254-264.(in Chinese))
[10]	曹安业，朱亮亮，杜中雨，等. 巷道底板冲击控制原理与解危技术研究[J]. 采矿与安全工程学报，2013，30(6)：848-855.(CAO Anye，ZHU Liangliang，DU Zhongyu，et al. Control principle and pressure-relief technique of rock burst occurred in roadway floor[J]. Journal of Mining and Safety Engineering，2013，30(6)：848-855.(in Chinese))
[12]	徐学锋. 煤层巷道底板冲击机制及其控制研究[博士学位论文][D]. 徐州：中国矿业大学，2011.(XU Xuefeng. Research of mechanism and controlling technology of floor burst in coal seam roadway[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2011.(in Chinese))
[13]	谢龙，窦林名，吕长国，等. 不同侧压系数对动载诱发巷道底板冲击的影响[J]. 采矿与安全工程学报，2013，30(2)：251-255.(XIE long，DOU liming，LU Changguo，et al. Study on the effect of floor burst induced by dynamic disturbance at different lateral pressure coefficients[J]. Journal of Mining and Safety Engineering，2013，30(2)：251-255.(in Chinese))
[15]	徐晓鼎，周跃进，庞顺. 石膏矿老采空区塑性支撑系统的突变失稳分析[J]. 岩石力学与工程学报，2018，37(11)：2 548-2 555.(XU Xiaoding，ZHOU Yuejin，PANG Shun. Analysis of catastrophic instability of plastic supporting system in old goaf of gypsum mine[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(11)：2 548-2 555.(in Chinese))
[17]	潘岳，耿厚才. “折断式”顶板大面积冒落的尖点突变模型[J]. 有色金属，1989，41(4)：19-26.(PAN Yue，GENG Houcai. Cusp catastrophe model for large area caving of“broken”roof[J]. Nonferrous Metals，1989，41(4)：19-26.(in Chinese))
[20]	何满潮，曹伍富，单仁亮，等. 双向聚能拉伸爆破新技术[J]. 岩石力学与工程学报，2003，12(22)：2 047-2 051.(HE Manchao，CAO Wufu，SHAN Renliang，et al. New blasting technology——bilateral cumulative tensile explosion[J]. Chinese Journal of Rock Mechanics and Engineering，2003，12(22)：2 047-2 051.(in Chinese))
[22]	杨军，付强，高玉兵，等. 切顶卸压无煤柱自成巷全周期围岩受力及变形规律[J]. 煤炭学报，2020，45(增1)：87-98.(YANG Jun，FU Qiang，GAO Yubing，et al. The law of stress and deformation of surrounding rock in the full cycle of roof cutting and pressure relief non pillar self formed roadway[J]. Journal of China Coal Society，2020，45(Supp.1)：87-98.(in Chinese))
[23]	徐晓鼎. 曹家滩矿井特厚煤层沿空巷道强矿压显现机制及卸压控制研究[博士学位论文][D]. 长春：吉林大学，2022.(XU Xiaoding. Study on strong rock pressure behavior mechanism and pressure relief control of gob-side entry in caojiatan mine with extra thick[Ph. D. Thesis][D]. Changchun：Jilin University，2022.(in Chinese))
[25]	何春光，徐晓鼎，杨建辉，等. 厚硬顶板切顶卸压围岩变形控制技术研究[J]. 煤炭工程，2022，54(9)：59-63.(HE Chunguang，XU Xiaoding，YANG Jianhui，et al. Surrounding rock deformation control for roof cutting and pressure relief under thick and hard roof[J]. Coal Engineering，2022，54(9)：59-63.(in Chinese))
[27]	钱鸣高，朱德仁，王作棠. 老顶岩层断裂型式及对工作面来压的影响[J]. 中国矿业学院学报，1986，(2)：12-21.(QIAN Minggao，ZHU Deren，WANG Zuotang. Fracture pattern of main roof strata and its influence on weighting of working face[J]. Journal of China University of Mining and Technology，1986，(2)：12-21.(in Chinese))