深埋硬岩隧洞岩爆的结构面作用机制分析

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Abstract Rockburst is a dynamic geological disaster often encountered during the excavation of deep hard rock tunnels，and structural plane is found playing an important role in controlling the rockburst in deeply buried tunnels of Jinping II Hydropower Station. On the basis of summarizing the present research status and enumerating the typical cases of structure-type rockburst，controlling roles of different structural plane types，occurrence，and different production environment，construction methods and other conditions on rockburst are analyzed and a structure-type rockburst classification method is proposed based on different mechanisms. Analyses show that structure-type rockburst can be classified into slip burst，shear rupture burst and extensile spalling burst；extensile spalling burst can be easily induced by vertical occurrence structural plane in sidewall which makes surrounding rock suppress to tensile crack，while slip burst or shear rupture burst can be induced by structural plane of inclined occurrence；the intensity of shear rupture burst evoked by unexposed inclined structural plane may be higher than that of slip burst induced by exposed plane under the same condition；large scale slip burst mainly occurs in mining engineering，while small scale slip burst is more prone to take place in hydropower and traffic tunnels，and structural planes control the depth and boundary of the crater as well as dimension of ejecting blocks；for structure-type rockburst dominated by shear failure，energy released from the burst is partly determined by mechanical properties and strength characteristics of the structure plane，which affects the intensity of the burst. The research result will contribute to mechanism understanding and controlling method for structure-type rockburst in deep hard rock tunnels.

Key words： structure-type rockburst rockburst mechanism classification prevention method

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https://rockmech.whrsm.ac.cn/EN/Y2015/V34/I04/720

[1] ORTLEPP W D，STACEY T R. Rockburst Mechanisms in Tunnels and Shafts[J]. Tunnelling and Underground Space Technology，1994，9(1)：59–65. [2] 徐林生，王兰生. 二郎山公路隧道岩爆发生规律与岩爆预测研究[J].岩土工程学报，1999，21(5)：569–572.(XU Linsheng，WANG Lansheng. Study on the laws of rockburst and its forecasting in the tunnel of Erlang mountain road[J]. Chinese Journal of Geotechnical Engineering，1999，21(5)：569–572.(in Chinese)) [3] 谷明成，何发亮，陈成宗. 秦岭隧道岩爆的研究[J]. 岩石力学与工程学报，2002，21(9)：1 324–1 329.(GU Mingcheng，HE Faliang，CHEN Chengzong. Study on rockburst in Qingling tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(9)：1 324–1 329. (in Chinese)) [4] 冯夏庭，陈炳瑞，明华军，等. 深埋隧洞岩爆孕育规律与机制：即时型岩爆[J]. 岩石力学与工程学报，2012，31(3)：433–444.(FENG Xiating，CHEN Bingrui，MING Huajun，et al. Evolution law and mechanism of rockbursts in deep tunnels：immediate rockburst[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(3)：275–288.(in Chinese)) [5] 陈炳瑞，冯夏庭，明华军，等. 深埋隧洞岩爆孕育规律与机制：时滞型岩爆[J]. 岩石力学与工程学报，2012，31(3)：561–569.(CHEN Bingrui，FENG Xiating，MING Huajun，et al. Evolution law and mechanism of rockbursts in deep tunnel：time delayed rockburst[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(3)：561–569.(in Chinese)) [6] LI S J，FENG X T，LI Z H，et al. In situ monitoring of rockburst nucleation and evolution in the deeply buried tunnels of Jinping II hydropower station[J]. Engineering Geology，2012(137-138)：85–96. [7] TANG B Y. Rockburst control using distress blasting. [Ph. D. Thesis][D]. Montreal，Canada：McGill University，2000. [8] ZHANG C Q，FENG X T，HUI Z H，et al. A Top Pilot Tunnel Preconditioning Method for the Prevention of Extremely Intense Rockbursts in Deep Tunnels Excavated by TBMs[J]. Rock Mechanics and Rock Engineering，2012，45(3)：289–309. [9] BOARD M，RORKE T，WILLIAMS G，et al. Fluid Injection for Rockburst Control in Deep Mining，in Rock Mechanics. In Poceedings of the 33th U.S. Symposium on Rock Mechanics，1992，pp：111–120. [10] KAISER P K，CAI M. Design for rock support system under rockburst condition. Journal of Rock Mechanics and Geotechnical Engineering. 2012，4 (3)：215–227. [11] 朱焕春，朱永生. 锦屏二级水电站辅助洞岩爆控制研究和实践成果报告[R]. 上海:华东勘测设计研究院，2007.(ZHU Huanchun，ZHU Yongsheng. Report on rockburst control and practice of Jinping II Hydropower Station auxiliary tunnel[R]. Shanghai：East China Investigation and Design Institute，2007.(in Chinese)) [12] RYDER J A. Excess shear stress in the assessment of geologically hazardous situations[J]. Journal of the South African Institute of Mining and Metallurgy，1988，88：27–39. [13] HEDLEY D G F. Rockburst handbook for Ontario hardrock mines. CANMET SP92-1E，1992. [14] ORTLEPP W D. Rock Fracture and Rockbursts-an illustrative study. Johannesburg：The South African Institute of Mining and Metallurgy，1997 . [15] ORTLEPP W D. Note on Fault-slip Motion Inferred from a Study of Micro-cataclastic Particles from an Underground Shear Rupture. Pure and Applied Geophysics，1992，139(3-4)：677–695. [16] ORTLEPP W D. Observation of mining-induced faults in an intact rock mass at depth[J]. International Journal of Rock Mechanics and Mining Sciences，2000，(37)：423–436. [17] BOARD M P. Numerical examination of mining-induced seismicity. PhD thesis[Ph. D. Thesis][D]，Minneapolis，MN，USA：University of Minnesota，1994. [18] WHITE B G.，WHYATT J K. Role of fault slip on mechanisms of rock burst damage，Lucky Friday Mine，Idaho，USA. In SARES 99: 2nd Southern African Rock Engineering Symposium. Implementing Rock Engineering Knowledge，T.O. Hagan，ed.，1999，pp：169–178. [19] HAGAN T O，MILEV A M，SPOTTISWOODE S M，et al，Simulated rockburst experiment-An overview[J]. The Journal of the South African Institute of Mining and Metallurgy，2001，101，217–222. [20] REDDY N，SPOTTISWOODE S M. The influence of geology on a simulated rockburst[J]. The Journal of the South African Institute of Mining and Metallurgy，2001，101(5)：267–272. [21] 汪泽斌. 天生桥二级水电站隧洞岩爆规律及预测方法的探索[J]. 人民珠江，1994(3)，11–13.(WANG Zebin. On the law of rock burst in Tunnels of Tianshengqiao II Hydropower Station and Its Prediction[J]. Pearl River，1994(3)，11–13.(in Chinese)) [22] 周辉. 深埋隧洞围岩破裂结构特征及其与岩爆的关系[C]//新观点新学说学术沙龙文集51：岩爆机制探索，北京：中国科学技术出版社，2011：106–114. [23] ZHANG C Q，FENG X T，ZHOU H，et al. Case histories of four extremely intense rockbursts in deep tunnels[J]. Rock Mechanics and Rock Engineering，2012，45(3)：289–309. [24] ZHANG C Q，FENG X T，ZHOU H，et al. Rockmass damage development following two extremely intense rockbursts in deep tunnels at Jinping II hydropower station, southwestern China[J]. Bulletin of Engineering Geology and the Environment，2013，72：237–247.