Study on the control effect of conventional bolt cable supporting surrounding rock based on butterfly plastic zone theory
LI Chen1，2，MA Nianjie2，XIN Delin1，ZHANG Wenlong2，3
(1. CCTEG Wuhan Engineering Company，Wuhan，Hubei 430064，China；2. School of Energy and Mining Engineering，China University of Mining and Technology(Beijing)，Beijing 100083，China；3. School of Civil Engineering and Architecture，Qingdao Huanghai University，Qingdao，Shandong 266427，China)
Abstract：The effectiveness of conventional anchor-cable support is limited for the large deformation of mining-induced roadway. The paper uses theoretical analysis，numerical simulation，and engineering case analysis to investigate the stress distribution of the surrounding rock，the size of the plastic zone，and the effect of deformation and failure control caused by conventional anchor-cable support in mining roadway. The results show that：(1) Bidirectional non-isobaric stress environment around the mining roadway promotes the development of the plastic zone from circular to elliptical or even butterfly-shaped，which is significantly affected by the strength of the surrounding rock. (2) Conventional anchor-cable support cannot significantly improve the stress field around the mining roadway. The control rate of continuous deformation of the surrounding rock in the roadway by strengthening support is related to the basic stress. (3) The stability control of the surrounding rock in the mining roadway should mainly rely on stress regulation，supplemented by conventional support. Flexible support combined with grouting modification and reinforcement of sensitive areas is the key. The research results can help to further understand the effect of conventional anchor-cable support on mining roadway and provide reference for surrounding rock control.
李 臣1，2，马念杰2，辛德林1，张文龙2，3. 基于蝶形理论的常规锚杆索支护围岩控制效用研究[J]. 岩石力学与工程学报, 2024, 43(S1): 3195-3203.
LI Chen1，2，MA Nianjie2，XIN Delin1，ZHANG Wenlong2，3 . Study on the control effect of conventional bolt cable supporting surrounding rock based on butterfly plastic zone theory. , 2024, 43(S1): 3195-3203.
[1] 左建平，孙运江，文金浩，等. 深部巷道全空间协同控制技术及应用[J]. 清华大学学报：自然科学版，2021，61(8)：853–862.(ZUO Jianping，SUN Yunjiang，WEN Jinhao，et al. Full-space collaborative control technology and its application for deeply buried roadways [J]. Journal of Tsinghua University：Science and Technology，2021，61(8)：853–862.(in Chinese))
[2] JIANG L，SAINOKI A，HANI S M，et al. Influence of fracture- induced weakening on coal mine gateroad stability[J]. International Journal of Rock Mechanics and Mining Sciences，2016，88：1–16.
[3] 马念杰，赵希栋，赵志强，等. 深部采动巷道顶板稳定性分析与控制[J]. 煤炭学报，2015，40(10)：2 287–2 295.(MA Nianjie，ZHAO Xidong，ZHAO Zhiqiang，et al. Stability analysis and control technology of mine roadway roof in deep mining[J]. Journal of China Coal Society，2015，40(10)：2 287–2 295.(in Chinese))
[4] 王卫军，韩 森，董恩远. 考虑支护作用的巷道围岩塑性区边界方程及应用[J]. 采矿与安全工程学报，2021，38(4)：749–755.(WANG Weijun，HAN Sen，DONG Enyuan. Boundary equation of plastic zone in roadway surrounding rocks considering supporting effect and its application[J]. Journal of Mining and Safety Engineering，2021，38(4)：749–755.(in Chinese))
[5] 赵志强，马念杰，刘洪涛，等. 巷道蝶形破坏理论及其应用前景[J]. 中国矿业大学学报，2018，47(5)：969–978.(ZHAO Zhiqiang，MA Nianjie，LIU Hongtao，et al. A butterfly failure theory of rock mass around roadway and its application prospect[J]. Journal of China University of Mining and Technology，2018，47(5)：969–978.(in Chinese))
[6] 李 臣，霍天宏，吴 峥，等. 动压巷道顶板非均匀剧烈变形机制及其稳定性控制[J]. 中南大学学报：自然科学版，2020，51(5)：1 317–1 327.(LI Chen，HUO Tianhong，WU Zheng，at al. Mechanism and stability control of nonuniform and violent deformation of dynamic pressure roadway roof[J]. Journal of Central South University：Science and Technology，2020，51(5)：1 317–1 327.(in Chinese))
[7] 王卫军，彭 刚，黄 俊. 高应力极软破碎岩层巷道高强度耦合支护技术研究[J]. 煤炭学报，2011，36(2)：223–228.(WANG Weijun，PENG Gang，HUANG Jun. Research on high-strength coupling support technology of high stress extremely soft rock roadway[J]. Journal of China Coal Society，2011，36(2)：223–228.(in Chinese))
[8] 李树清，王卫军，潘长良. 深部巷道围岩承载结构的数值分析[J]. 岩土工程学报，2006，28(3)：377–381.(LI Shuqing，WANG Weijun，PAN Changliang. Numerical analysis on support structure of rock around deep roadway[J]. Chinese Journal of Geotechnical Engineering，2006，28(3)：377–381.(in Chinese))
[9] 王卫军，袁 超，郭罡业，等. 强烈采动作用下岩巷围岩塑性区恶性扩展的控制研究[J]. 采矿与安全工程学报，2016，33(6)：957–964.(WANG Weijun，YUAN Chao，GUO Gangye，et al. Control of malignant expansion of plastic zone in surrounding rock of rock roadway under the conditions of violent mining[J]. Journal of Mining and Safety Engineering，2016，33(6)：957–964.(in Chinese))
[10] 张继华，王连国，朱双双，等. 松散软岩巷道围岩塑性区扩展分析及支护实践[J]. 采矿与安全工程学报，2015，32(3)：433–438. (ZHANG Jihua，WANG Lianguo，ZHU Shuangshuang，et al. Mechanical analysis of the plastic zones propagation of loose soft rock roadway and the supporting practice[J]. Journal of Mining and Safety Engineering，2015，32(3)：433–438.(in Chinese))
[11] 马念杰，冯吉成，吕 坤，等. 煤巷冒顶成因分类方法及其支护对策研究[J]. 煤炭科学技术，2015，43(6)：34–40.(MA Nianjie，FENG Jicheng，LYU Kun，et al. Study on cause classification method and support countermeasures of roof falling in coal drift[J]. Coal Science and Technology，2015，43(6)：34–40.(in Chinese))
[12] 袁 超. 深部巷道围岩变形破坏机理与稳定性控制原理研究[博士学位论文][D]. 湘潭：湖南科技大学，2017.(YUAN Chao. Research on the mechanism and stability control of rock deformation and failure around deep tunnels[Ph. D. Thesis][D]. Xiangtan：Hunan University of Science and Technology，2017.(in Chinese))
[13] 王卫军，袁 超，余伟健，等. 深部大变形巷道围岩稳定性控制方法研究[J]. 煤炭学报，2016，41(12)：2 921–2 931.(WANG Weijun，YUAN Chao，YU Weijian，et al. Stability control method of surrounding rock in deep roadway with large deformation[J]. Journal of China Coal Society，2016，41(12)：2 921–2 931.(in Chinese))
[14] 康红普，姜鹏飞，黄炳香，等. 煤矿千米深井巷道围岩支护–改性–卸压协同控制技术[J]. 煤炭学报，2020，45(3)：845–864.(KANG Hongpu，JIANG Pengfei，HUANG Bingxiang，et al. Roadway strata control technology by means of bolting-modi-fication-destressing in synergy in 1 000 m deep coal mines[J]. Journal of China Coal Society，2020，45(3)：845–864.(in Chinese))
[15] 康红普，徐 刚，王彪谋，等. 我国煤炭开采与岩层控制技术发展40a及展望[J]. 采矿与岩层控制工程学报，2019，1(2)：3–39. (KANG Hongpu，XU Gang，WANG Biaomou，et al. Forty years development and prospects of underground coal mining and strata control technologies in China[J]. Journal of Mining and Strata Control Engineering，2019，1(2)：3–39.(in Chinese))
[16] 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，2010：51–66.(QIAN Minggao，SHI Pingwu，XU Jianlin. Mining pressure and strata control[M]. Xuzhou：China University of Mining and Technology Press，2010：51–66.(in Chinese))
[17] 李 臣. 蒙陕矿区双巷布置留巷围岩破坏机制及适用采深研究[博士学位论文][D]. 北京：中国矿业大学(北京)，2022.(LI Chen. Failure mechanism of surrounding rock and applicable mining depth of double roadway layout in Inner Mongolia-Shaanxi Mining Area[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology (Beijing)，2022.(in Chinese))
[18] 赵志强. 大变形回采巷道围岩变形破坏机制与控制方法研究[博士学位论文][D]. 北京：中国矿业大学(北京)，2014.(ZHAO Zhiqiang. Mechanism of surrounding rock deformation and failure and control method research in large deformation mining roadway[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology (Beijing)，2014.(in Chinese))
[19] 马念杰，李 季，赵志强. 圆形巷道围岩偏应力场及塑性区分布规律研究[J]. 中国矿业大学学报，2015，44(2)：206–213.(MA Nianjie，LI Ji，ZHAO Zhiqiang. Distribution of the deviatoric stress field and plastic zone in circular roadway surrounding rock[J]. Journal of China University of Mining and Technology，2015，44(2)：206–213.(in Chinese))
[20] WANG W，XIE W，ZHAO J. The surrounding rock instability mechanism and control technology for dynamic pressure floor roadway[J]. Electronic Journal of Geotechnical Engineering，2015，20(20)：11 683–11 697.
[21] 袁 超，王卫军，冯 涛，等. 基于塑性区扩展的巷道围岩控制原理研究[J]. 采矿与安全工程学报，2017，34(6)：1 051–1 059. (YUAN Chao，WANG Weijun，FENG Tao，et al. Research on control principles of surrounding rocks of roadway based on expansion of plastic zone[J]. Journal of Mining and Safety Engineering，2017，34(6)：1 051–1 059.(in Chinese))
[22] 蔡美峰. 岩石力学与工程[M]. 北京：科学出版社，2013：101–123.
(CAI Meifeng. Rock mechanics and engineering[M]. Beijing：Science Press，2013：101–123.(in Chinese))
[23] 康红普，林 健，吴拥政，等. 锚杆构件力学性能及匹配性[J]. 煤炭学报，2015，40(1)：11–23.(KANG Hongpu，LIN Jian，WU Yongzheng，et al. Mechanical performances and compatibility of rock bolt components[J]. Journal of China Coal Society，2015，40(1)：11–23.(in Chinese))
[24] 李 臣，张文龙，汪 宁，等. 基于采动影响下塑性区演化的顶板稳定性控制[J]. 采矿与安全工程学报，2019，36(4)：753–761.(LI Chen，ZHANG Wenlong，WANG Ning，et al. Roof stability control based on plastic zone evolution during mining[J]. Journal of Mining and Safety Engineering，2019，36(4)：753–761.(in Chinese))
[25] LI C，WU Z，ZHANG W，et al. A case study on asymmetric deformation mechanism of the reserved roadway under mining influences and its control techniques[J]. Geomechanics and Engineering，2020，22(5)：449–460.
[26] 王卫军，袁 超，余伟健，等. 深部大变形巷道围岩稳定性控制方法研究[J]. 煤炭学报，2016，41(12)：2 921–2 931.(WANG Weijun，YUAN Chao，YU Weijian，et al. Stability control method of surrounding rock in deep roadway with large deformation[J]. Journal of China Coal Society，2016，41(12)：2 921–2 931.(in Chinese))
[27] YUAN C，FAN L，CUI J，et al. Numerical simulation of the supporting effect of anchor rods on layered and nonlayered roof rocks[J]. Advances in Civil Engineering，2020，2020：1–14.
[28] 侯朝炯. 巷道围岩控制[M]. 徐州：中国矿业大学出版社，2014：68–89.(HOU Chaojiong. Roadway surrounding rock control[M]. Xuzhou：China University of Mining and Technology Press，2014：68–89.(in Chinese))
[29] 康红普. 煤炭开采与岩层控制的空间尺度分析[J]. 采矿与岩层控制工程学报，2020，2(2)：5–30.(KANG Hongpu. Spatial scale analysis on coal mining and strata control technologies[J]. Journal of Mining and Strata Control Engineering，2020，2(2)：5–30.(in Chinese))
[30] 蔡美峰. 深部开采围岩稳定性与岩层控制关键理论和技术[J]. 采矿与岩层控制工程学报，2020，2(3)：5–13.(CAI Meifeng. Key theories and technonogies for surrounding rock stability and ground control in deep mining[J]. Journal of Mining and Strata Control Engineering，2020，2(3)：5–13.(in Chinese))
2024, Vol. 43 
