乱石包高速远程滑坡流态化运动模式及摩擦热效应研究

doi:10.13722/j.cnki.jrme.2021.1177

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摘要高速远程滑坡动力学机制一直是国际滑坡领域研究的热点挑战性难题，聚焦这一科学问题，以乱石包高速远程滑坡为研究对象，借助MatDEM软件，开展了滑坡运动演化全过程有效模拟，从细观角度进一步论证滑坡的流态化运动模式与摩擦热效应。研究发现：(1) 滑体运动速度呈现明显的垂向分带特征，底部为速度较低的强剪切带，中上部为速度较高的主滑体；(2) 滑坡质心最大运动速度为33.3 m/s，最大水平和垂直位移分别为1 469.9和374.1 m，等效摩擦因数为0.255；(3) 摩擦能占总能量损失的44.3%，主要集中于流通区的强剪切带，与之相应，流通区滑体与下伏层之间的铲刮裹挟作用明显高于堆积区；(4) 滑体运动过程中所产生的摩擦能可使流通区剪切带颗粒平均升温约64 ℃，产生摩擦热效应；(5) 滑体等效摩擦因数在流通区和堆积区中后部呈低值分布，流通区强烈动量传递作用、铲刮裹挟效应和摩擦热效应的出现，应为摩擦因数降低的主要原因。该数值模拟结果与现场调查所得滑坡特征有较好的一致性，有助于滑体流态化运动过程和摩擦热现象的定量揭示，对高速远程滑坡运动学和动力学机制研究具有重要科学价值。

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	王玉峰1
	2
	3
	明杰1
	冯止依1
	程谦恭1
	2
	3

关键词 ：边坡工程, 乱石包高速远程滑坡, MatDEM, 运动模式, 动量传递, 裹挟效应, 摩擦热效应

Abstract：Rock avalanche dynamics is always a hot and challenging issue in the field of landslide. Focusing on this issue，the Luanshibao rock avalanche is chosen as an example with its whole propagation process being simulated by MatDEM，to further illustrate its fluidized propagation and frictional heating effect from a mesoscopic point of view. It is reached that：(1) The velocity of the sliding mass presents an obvious vertical zoning feature with the bottom forming an intensive shearing zone characterized by lower velocity and the upper part characterized by higher velocity. (2) The maximum velocity of the mass center is 33.3 m/s. Its horizontal runout and vertical drop are 1469.9 and 374.1 m，respectively，with the equivalent friction coefficient being 0.255. (3) Frictional energy occupies 44.3% of the total loss of the potential energy，which mainly distributes along the basal facies in the translation zone. Correspondingly，the entrainment effect in the translation zone is obviously higher than that in the accumulation zone. (4) The frictional energy generated in the propagation can cause the basal facies to rise by 64 ℃ with frictional heating effects generated. (5) In the translation zone and the rear part of the accumulation zone，the equivalent friction coefficient displays in low values，which is attributed to the coupling effect of momentum transfer，entrainment effect and frictional heating effect. The simulated results have a good consistency with the field investigated data，which is conducive to the revealing on its propagation mode and frictional heating effect. The simulated results can provide significant scientific value for rock avalanche kinematics and dynamics.

Key words： slope engineering Luanshibao rock avalanche MatDEM propagation mode momentum transfer entrainment frictional heating effect

引用本文:

王玉峰1，2，3，明杰1，冯止依1，程谦恭1，2，3. 乱石包高速远程滑坡流态化运动模式及摩擦热效应研究[J]. 岩石力学与工程学报, 2022, 41(S2): 3174-3188.
WANG Yufeng1，2，3，MING Jie1，FENG Zhiyi1，CHENG Qiangong1，2，3. Research on the fluidized propagation and frictional heating effect of the Luanshibao rock avalanche. , 2022, 41(S2): 3174-3188.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2021.1177 或 http://rockmech.whrsm.ac.cn/CN/Y2022/V41/IS2/3174

[34]	GUO C B，ZHANG Y S，MONTGOMERY D R，et al. How unusual is the long-runout of the earthquake-triggered giant Luanshibao landslide，Tibetan Plateau，China? [J]. Geomorphology，2016，259：145–154.
[45]	VAN GASSEN W，CRUDEN D M. Momentum transfer and friction in the debris of rock avalanches[J]. Canadian Geotechnical Journal， 1989，26：623–628.
[9]	自然资源部中国地质调查局网. https：//www.cgs.gov.cn/gzdt/zsdw/ 202003/t20200331_504559.html.2020–03–31/2021–04–11.
[20]	STROM A，ABDRAKHMATOV K. Rockslides and rock avalanches of central Asia：distribution，morphology，and internal structure[M]. Netherlands：Elsevier，2018：1–441.
[1]	HEIM A. Bergsturz und menschenleben[C]//Landslides and Human Lives. Vancouver，B C：BiTech Publishers Ltd.，1989：1–203.
[23]	HE S M，LIU W，WANG J. Dynamic simulation of landslide based on thermo-poro-elastic approach[J]. Computers and Geosciences，2015，75：24–32.
[14]	ZHANG Y，CHENG Y，YIN Y，et al. High-position debris flow：A long-term active geohazard after the Wenchuan earthquake[J]. Engineering Geology，2014，180：45–54.
[54]	ERISMANN T H. Mechanisms of large landslides[J]. Rock Mechanics，1979，12(1)：15–46.
[35]	LEGROS F. The mobility of long-runout landslides[J]. Engineering Geology，2002，63：301–331.
[46]	HUNGR O. Momentum transfer and friction in the debris of rock avalanches：Discussion[J]. Canadian Geotechnical Journal，1990， 27：697.
[22]	DUFRESNE A，DAVIES T R. Longitudinal ridges in mass movement deposits[J]. Geomorphology，2009，105(3/4)：171–181.
[8]	The International Disaster Database. https：//public.emdat.be/data.2021– 05–06/2021–05–07.
[52]	IVERSON R M. Elementary theory of bed-sediment entrainment by debris flows and avalanches[J]. Journal of Geophysical Research：Earth Surface，2012，117：F03006.
[3]	程谦恭，张倬元，黄润秋. 高速远程崩滑动力学的研究现状及发展趋势[J]. 山地学报，2007，25(1)：72–84.(CHENG Qiangong，ZHANG Zhuoyuan，HUANG Runqiu. Study on dynamics of rock avalanches：state of the art report[J]. Journal of Mountain Science，2007，25(1)：72–84.(in Chinese))
[5]	高杨，李滨，高浩源，等. 高位远程滑坡冲击铲刮效应研究进展及问题[J]. 地质力学学报，2020，26(4)：510–519.(GAO Yang，LI Bin，GAO Haoyuan，et al. Progress and issues in the research of impact and scraping effect of high-elevation and long-runout landslide[J]. Journal of Geomechanics，2020，26(4)：510–519.(in Chinese))
[6]	STROM A L. Mechanism of stratification and abnormal crushing of rockslide deposits[C]// OLIVEIRA R，ERODRIGUES L，COELHO A G，et al ed. Proceedings of the 7th International IAEG Congress. Rotterdam：A A Balkema，1994：1 287–1 295.
[11]	彭建兵，马润勇，卢全中，等. 青藏高原隆升的地质灾害效应[J]. 地球科学进展，2004，19(3)：457–466.(PENG Jianbing，MA Runyong，LU Quanzhong，et al. Geological hazards effects of uplift Qinghai—Tibet Plateau[J]. Advance in Earth Science，2004，19(3)：457–466.(in Chinese))
[12]	彭建兵，崔鹏，庄建琦. 川藏铁路对工程地质提出的挑战[J]. 岩石力学与工程学报，2020，39(12)：2 377–2 389.(PENG Jianbing，CUI Peng，ZHUANG Jianqi. Challenges to engineering geology of Sichuan—Tibet railway[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(12)：2 377–2 389.(in Chinese))
[16]	郭长宝，张永双，杨志华，等. 川藏铁路沿线活动断裂与地质灾害效应调查研究[M]. 北京：地质出版社，2018：1–288.(GUO Changbao，ZHANG Yongshuang，YANG Zhihua，et al. Investigation and research on the active faults along the Sichuan-Tibet railway and geological disaster[M]. Beijing：Geological Publishing House，2018：1–288.(in Chinese))
[17]	LU C，CAI C. Challenges and countermeasures for construction safety during the Sichuan—Tibet Railway project[J]. Engineering，2019，5(5)：49–61.
[19]	ROBERTS N J，EVANS S G. The gigantic Seymareh(Saidmarreh) rock avalanche，Zagros Fold-Thrust Belt，Iran[J]. Journal of the Geological Society，London，2013，170：685–700.
[2]	张明，殷跃平，吴树仁，等. 高速远程滑坡–碎屑流运动机制研究发展现状与展望[J]. 工程地质学报，2010，18(6)：805–817. (ZHANG Ming，YIN Yueping，WU Shuren，et al. Development status and prospects of studies on kinematics of long runout rock avalanches[J]. Journal of Engineering Geology，2010，18(6)：805–817.(in Chinese))
[4]	王玉峰，林棋文，李坤，等. 高速远程滑坡动力学研究进展[J]. 地球科学与环境学报，2021，43(1)：164–181.(WANG Yufeng，LIN Qiwen，LI Kun，et al. Review on rock avalanche dynamics[J]. Journal of Earth Sciences and Environment，2021，43(1)：164–181.(in Chinese))
[7]	许强，裴向军，黄润秋. 汶川地震大型滑坡研究[M]. 北京：科学出版社，2009：1–473.(XU Qiang，PEI Xiangjun，HUANG Runqiu. Large-scale landslides induced by the Wenchuan earthquake[M]. Beijing：Science Press，2009：1–473.(in Chinese))
[10]	中国地质环境信息网. http：//www.cigem.cn/auto/s/0/detail.html?db =800001&rid=160217B8D3BE7FD4868C389C04981226&word=undefined&title=&mpgp=2019%E5%B9%B4%E5%85%A8%E5%9B%BD%E5%9C%B0%E8%B4%A8%E7%81%BE%E5%AE%B3%E9%80%9A%E6%8A%A5.2020–03–31/2021–04–11.
[13]	张永双，熊探宇，杜宇本，等. 高黎贡山深埋隧道地应力特征及岩爆模拟试验[J]. 岩石力学与工程学报，2009，28(11)：2 286–2 294. (ZHANG Yongshuang，XIONG Tanyu，DU Yuben，et al. Geostress characteristic and simulation experiment of rockburst of a deep-buried tunnel in Gaoligong mountain[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(11)：2 286–2 294.(in Chinese))
[15]	崔鹏，苏凤环，邹强，等. 青藏高原山地灾害和气象灾害风险评估与减灾对策[J]. 科学通报，2015，32：3 067–3 077.(CUI Peng，SU Fenghuan，ZOU Qiang，et al. Risk assessment and disaster reduction strategies for mountainous and meteorological hazards in Tibetan Plateau[J]. Chinese Science Bulletin，2015，32：3 067–3 077.(in Chinese))
[18]	SHREVE R L. The Blackhawk Landslide[J]. The Geological Society of America，1968，108：1–48.
[21]	WANG Y F，CHENG Q G，LIN Q W，et al. Insights into the kinematics and dynamics of the Luanshibao rock avalanche(Tibetan Plateau，China) based on its complex surface landforms[J]. Geomorphology，2018，317：170–183.
[24]	WANG Y F，DONG J J，CHENG Q G. Velocity-dependent frictional weakening of large rock avalanche basal facies：implications for rock avalanche hypermobility[J]. Journal of Geophysical Research：Solid Earth，2017，122(3)：1 648–1 676.
[25]	WANG Y F，DONG J J，CHENG Q G. Normal stress-dependent frictional weakening of large rock avalanche basal facies：implications for the rock avalanche volume effect[J]. Journal of Geophysical Research：Solid Earth，2018，123(4)：3 270–3 282.
[27]	HU W，HUANG R Q，MCSAVENEY M，et al. Superheated steam，hot CO2 and dynamic recrystallization from frictional heat jointly lubricated a giant landslide：field and experimental evidence[J]. Earth and Planetary Science Letters，2019，510：85–93.
[29]	LI K，WANG Y F，LIN Q W，et al. Experiments on granular flow behavior and deposit characteristics：implications for rock avalanche kinematics[J]. Landslides，2021，18：1 779–1 799.
[33]	王世元，梁明剑，李伟，等. 理塘–义敦断裂1∶5万活动断层填图数据库及防震减灾运用[J]. 四川地震，2014，153(4)：6–10.(WANG Shiyuan，LIANG Mingjian，LI Wei，et al. Mapping database of Litang—Yidun active fault and its benefits to protecting against and mitigating earthquake disaster[J]. Earthquake Research in Sichuan，2014，153(4)：6–10.(in Chinese))
[36]	LUCAS A，MANGENEY A，AMPUERO J P. Frictional velocity-weakening in landslides on Earth and on other planetary bodies[J]. Nature communications，2014，(5)：1–9.
[38]	袁运强. 基于MatDEM的乱石包高速远程滑坡运动特征研究[硕士学位论文][D]. 成都：西南交通大学，2020：35–49.(YUAN Yunqiang. Study on kinematic characteristics of lanshibao rock avalanche based on MatDEM[M. S. Thesis][D]. Chengdu：Southwest Jiaotong University，2020：35–49.(in Chinese))
[40]	TANG C L，HU J C，LIN M L，et al. The Tsaoling landslide triggered by the Chi-Chi earthquake，Taiwan：Insights from a discrete element simulation[J]. Engineering Geology，2009，106(1/2)：1–19.
[44]	WANG Y F，CHENG Q G，SHI A W，et al. Sedimentary deformation structures in the Nyixoi Chongco rock avalanche：implications on rock avalanche transport mechanisms[J]. Landslides，2019，16(3)：523–532.
[47]	刘忠玉，马崇武，苗天德，等. 高速滑坡远程预测的块体运动模型[J]. 岩石力学与工程学报，2000，19(6)：742–746.(LIU Zhongyu，MA Chongwu，MIAO Tiande，et al. Kinematic block model of long run-out prediction for high-speed landslides[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(6)：742–746.(in Chinese))
[49]	刘涌江，胡厚田，赵晓彦. 高速滑坡岩体碰撞效应的试验研究[J]. 岩土力学，2004，25(2)：255–260.(LIU Yongjiang，HU Houtian，ZHAO Xiaoyan. Experimental study on impact effect of high-speed landslide[J]. Rock and Soil Mechanics，2004，25(2)：255–260.(in Chinese))
[51]	郝明辉，许强，杨磊，等. 滑坡–碎屑流物理模型试验及运动机制探讨[J]. 岩土力学，2014，35(增1)：127–132.(HAO Minghui，XU Qiang，YANG Lei，et al. Physical modeling and movement mechanism of landslide-debris avalanches[J]. Rock and Soil Mechanics，2014，35(Supp.1)：127–132.(in Chinese))
[55]	HABIB P. Production of gaseous pore pressure during rock slides[J]. Rock Mechanics and Rock Engineering，1975，7(4)：193–197.
[26]	MITCHELL T M，SMITH S A F，ANDERS M H，et al. Catastrophic emplacement of giant landslides aided by thermal decomposition：Heart Mountain，Wyoming[J]. Earth and Planetary Science Letters，2015，411：199–207.
[28]	YANG Q Q，SU Z M，CHENG Q G，et al. High mobility of rock-ice avalanches：insights from small flume tests of gravel-ice mixtures[J]. Engineering Geology，2019，260：105260.
[30]	LI K，WANG Y F，CHENG Q G，et al. Insight into granular flow dynamics relying on basal stress measurements：from experimental flume tests[J]. Journal of Geophysical Research：Solid Earth，2022，to be in pressed.
[31]	刘春，乐天呈，施斌，等. 颗粒离散元法工程应用的3大问题探讨[J]. 岩石力学与工程学报，2020，39(6)：1 142–1 152.(LIU Chun，LE Tiancheng，SHI Bin，et al. Discussion on three major problems of engineering application of the particle discrete element method[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(6)：1 142–1 152.(in Chinese))
[32]	唐荣昌，韩渭宾. 四川活动断裂与地震[M]. 北京：地震出版社，1993：1–368.(TANG Rongchang，HAN Weibin. Active faults and earthquake in Sichuan Province[M]. Beijing：Earthquake Publish Company，1933：1–368.(in Chinese))
[37]	刘春，范宣梅，朱晨光，等. 三维大规模滑坡离散元建模与模拟研究—以茂县新磨村滑坡为例[J]. 工程地质学报，2019，27(6)：1 362–1 370.(LIU Chun，FAN Xuanmei，ZHU Chenguan，et al. Discrete element modeling and simulation of 3-dimensional large-scale landslide-taking Xinmocun landslide as an example[J]. Journal of Engineering Geology，2019，27(6)：1 362–1 370.(in Chinese))
[39]	付晓东，盛谦，张勇慧. DDA方法中的人工边界问题研究[J]. 岩石力学与工程学报，2015，34(5)：986–993.(FU Xiaodong，SHENG Qian，ZHANG Yonghui. Investigation on artificial boundary problem in discontinuous deformation analysis method[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(5)：986–993.(in Chinese))
[41]	CHARRIèRE M，HUMAIR F，FROESE C，et al. From the source area to the deposit：collapse，fragmentation，and propagation of the Frank Slide[J]. GSA Bulletin，2016，128(1/2)：332–351.
[42]	WANG Y F，CHENG Q G，YUAN Y Q，et al. Emplacement mechanisms of the Tagarma rock avalanche on the Pamir-western Himalayan syntaxis of the Tibetan Plateau，China[J]. Landslides，2020，17(3)：527–542.
[43]	ZENG Q L，ZHANG L Q，DAVIES T，et al. Morphology and inner structure of Luanshibao rock avalanche in Litang，China and its implications for long-runout mechanisms[J]. Engineering Geology，2019，260，DOI：10.1016/j.enggeo.2019.105216.
[48]	WANG Y F，XU Q，CHENG Q G，et al. Spreading and deposit characteristics of a rapid dry granular avalanche across 3D topography：experimental study[J]. Rock Mechanics and Rock Engineering，2016，49(11)：1–22.
[50]	OKADA Y，UCHIDA I. Dependence of runout distance on the number of rock blocks in large-scale rockmass failure experiments[J]. Journal of Forest Research，2014，19(3)：329–339.
[53]	FARIN M，MANGENEY A，ROCHE O. Fundamental changes of granular flow dynamics，deposition，and erosion processes at high slope angles：insights from laboratory experiments[J]. Journal of Geophysical Research：Earth Surface，2014，119(3)：504–532.