复杂三维地形条件下滑坡–碎屑流运动与堆积特征物理模拟实验研究

doi:10.13722/j.cnki.jrme.2015.1575

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摘要为定量化揭示真实复杂三维地形条件对滑坡–碎屑流运动与堆积特征的影响，基于谢家店子滑坡真实三维地形空间分布形态，设计并建立滑坡–碎屑流三维物理模型实验装置，开展相关物理模拟实验研究，获取复杂三维地形条件下，滑坡–碎屑流运动与堆积特征的图像和定量化数据，并依此观察和分析其流态化运动与堆积特征。主要得出以下结论：(1) 滑坡运动路径上沟谷转折段等复杂地形的展布，可引起碎屑流动能的快速耗散，运动速度陡降，从而减小碎屑流的运动距离；(2) 碎屑流运动过程中，颗粒之间的动量传递作用，可明显促进碎屑流的远程运动；(3) 运动路径上沟谷两侧缓坡平台的展布，可导致碎屑流的“分流–汇流”运动，并最终在碎屑流表面形成纵向沟状槽；(4) 当碎屑流流动至运动路径的开阔地段时，碎屑流进入一种以碰撞为主的无侧限扩离运动状态，在粒间碰撞–推挤力、重力和地形的共同作用下，形成“X”型共轭堆积脊。

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	王玉峰1
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	许强2
	程谦恭1
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	李艳1
	张金存1

关键词 ：边坡工程, 滑坡&ndash, 碎屑流, 三维物理模拟实验, 复杂地形, 运动特征, 堆积特征

Abstract：To study the propagation behaviours of rock avalanche along 3D complex topography quantitatively，a 3D analogue model was built based on the true topography of the Xiejiadianzi rock avalanche. A series of experimental tests were conducted to document the propagation and deposit features of rock avalanche under the effect of 3D complex topography. Along the travelling path，the layout of complex terrains such as the twisted spots generated the rapid dissipation of the kinetic energy of rock avalanche，and reduced the travel distance finally. In the motion of rock avalanche，the existence of momentum transfer among particles played an important role in the long runout of the debris. The extension of small ramps along the both sides of the traveling path induced the shunting-converging movement of the debris，with longitudinal groove-like troughs formed finally. When the debris reached the open area of the travelling path，it transferred into an unconfined spreading movement with particle collisions occurred frequently. Under the co-work of the pushing force，gravity and topography，squeezing effect occurred in the motion of particles with stress ridges generated.

Key words： slope engineering rock avalanches 3D analogue model test complex topography propagation characteristics deposit features

引用本文:

王玉峰1，2，许强2，程谦恭1，3，李艳1，张金存1. 复杂三维地形条件下滑坡–碎屑流运动与堆积特征物理模拟实验研究[J]. 岩石力学与工程学报, 2016, 35(9): 1776-1791.
WANG Yufeng1，2，XU Qiang2，CHENG Qiangong1，3，LI Yan1，ZHANG Jincun1. Experimental study on the propagation and deposit features of rock avalanche along 3D complex topography. , 2016, 35(9): 1776-1791.

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http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2015.1575 或 http://www.rockmech.org/CN/Y2016/V35/I9/1776

[22]	MANGENEY A. Landslide boost from entrainment[J]. Nature Geoscience，2011，4(2)：77-78. " target="_blank">
[18]	FODA M A. Landslides riding on basal pressure waves[J]. Continuum Mechanics and Thermodynamics，1994，6(1)：61-79. " target="_blank">
[17]	MELOSH H J. The physics of very large landslides[J]. Acta Mechanica，1986，64(1/2)：89-99. " target="_blank">
[44]	EVANS S G. Rock avalanche run-up record[J]. Nature，1989，340：271. " target="_blank">
[1]	黄润秋，许强. 中国典型灾难性滑坡[M]. 北京：科学出版社，2008：1-551.(HUANG Runqiu，XU Qiang. Catastrophic landslides in China[M]. Beijing：Science Press，2008：1-551.(in Chinese)) " target="_blank">
[6]	吴树仁，王涛，石玲，等. 2008汶川大地震极端滑坡事件初步研究[J]. 工程地质学报，2010，18(2)：145-159.(WU Shuren，WANG Tao，SHI Ling，et al. Study of catastrophic landslides triggered by 2008 great Wenchuan earthquake，Sichuan，China[J]. Journal of Engineering Geology，2010，18(2)：145-159.(in Chinese))
[8]	QI S W，XU Q，ZHANG B，et al. Source characteristics of long runout rock avalanches triggered by the 2008 Wenchuan earthquake，China[J]. Journal of Asian Earth Sciences，2011，40(4)：896-906.
[10]	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))
[15]	HABIB P. Production of gaseous pore pressure during rock slides[J]. Rock Mechanics and Rock Engineering，1975，7(4)：193-197. " target="_blank">
[19]	DAVIES T R H，MCSAVENEY M J，HODGSON K A. A fragmentation spreading model for long-runout avalanches[J]. Canadian Geotechnical Journal，1999，36(6)：1 096-1 110. " target="_blank">
[3]	HEIM A. Landslides and human lives[M]. Vancouver，B C：Bitech Publishers，1932：80-88. " target="_blank">
[5]	殷跃平. 汶川八级地震滑坡高速远程特征分析[J]. 工程地质学报， 2009，17(2)：153-166.(YIN Yueping. Rapid and long run-out features of landslides triggered by the Wenchuan earthquake[J]. Journal of Engineering Geology，2009，17(2)：153-166.(in Chinese))
[14]	KENT P E. The transport mechanism in catastrophic rock falls[J]. Journal of Geology，1966，74(1)：79-83. " target="_blank">
[9]	XING A G，WANG G H，YIN Y P，et al. Dynamic analysis and field investigation of a fluidized landslide in Guanling，Guizhou，China[J]. Engineering Geology，2014，181(10)：1-14. " target="_blank">
[11]	HSÜ K J. Catastrophic debris streams(sturzstroms) generated by rockfalls[J]. Bullutin Geology Society of American，1975，86(1)：225-256. " target="_blank">
[23]	GASSEN W V，CRUDEN D M. Momentum transfer and friction in the debris of rock avalanches[J]. Canadian Geotechnical Journal，1989，26(4)：623-628. " target="_blank">
[25]	HUTTER K，KOCH T. Motion of a granular avalanche in an exponentially curved chute：experiments and theoretical predictions[J]. Philosophical Transactions of the Royal Society of London：Series A，1991，334(1633)：93-138. " target="_blank">
[27]	MANZELLA I，LABIOUSE V. Qualitative analysis of rock avalanches propagation by means of physical modelling of non-constrained gravel flows[J]. Rock Mechanics and Rock Engineering，2008，41(1)：133-151.
[12]	苏生瑞，张永双，李松，等. 汶川地震引发高速远程滑坡运动机制数值模拟研究——以谢家店子滑坡为例[J]. 地球科学与环境学报，2010，32(3)：277-287.(SU Shengrui，ZHANG Yongshuang，LI Song，et al. Numerical analysis on motion mechanism of highspeed and long runout landslide by Wenchuan earthquake—taking Xiejiadianzi landslide as an example[J]. Journal of Earth Sciences and Environment，2010，32(3)：277-287.(in Chinese)) " target="_blank">
[21]	IVERSON R M，REID M E M. Positive feedback and momentum growth during debris-flow entrainment of wet bed sediment[J]. Nature Geoscience，2011，4(2)：116-121. " target="_blank">
[30]	郝明辉，许强，杨兴国，等. 高速滑坡-碎屑流颗粒反序试验及其成因机制探讨[J]. 岩石力学与工程学报，2015，34(3)：472-479. (HAO Minghui，XU Qiang，YANG Xingguo，et al. Physical model tests on inverse grading of particles in high speed landslide debris[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(3)：472-479.(in Chinese))
[32]	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.
[34]	IVERSON R M，LOGAN M，DENLINGER R P. Granular avalanches across irregular three-dimensional terrain：2 experimental tests[J]. Journal of Geophysical Research，2004，109(F01015)：1-16. " target="_blank">
[36]	SCHEIDL C，MCARDELL B W，RICKENMANN R. Debris-flow velocities and superelevation in a curved laboratory channel[J]. Canadian Geotechnical Journal，2015，52(3)：305-317. " target="_blank">
[39]	程谦恭. 高速远程滑坡-碎屑流裹气流态化减阻机制研究[J]. 学术动态，2012，(1)：1-8.(CHENG Qiangong. Study on the fluidization of rock avalanche under the effect of entrapped gas[J]. Academic Trends，2012，(1)：1-8.(in Chinese)) " target="_blank">
[41]	DAI F C，TU X B，XU C，et al. Rock avalanches triggered by oblique-thrusting during the 12 May 2008 Ms 8.0 Wenchuan earthquake，China[J]. Geomorphology，2011，132(3/4)：300-318. " target="_blank">
[2]	YIN Y P，SUN P，ZHU J L，et al. Research on catastrophic rock avalanche at Guanling，Guizhou，China[J]. Landslides，2011，8(4)：517-525.
[4]	EVANS S G，GUTHRIE R H，ROBERTS N J，et al. The disastrous 17 February 2006 rockslide-debris avalanche on Leyte Island，Philippines：a catastrophic landslide in tropical[J]. Natural Hazards and Earth System Sciences，2007，7(1)：89-101. " target="_blank">
[7]	许强，裴向军，黄润秋. 汶川地震大型滑坡[M]. 北京：科学出版社，2009：53-422.(XU Qiang，PEI Xiangjun，HUANG Runqiu. Large-scale landslides induced by the Wenchuan earthquake[M]. Beijing：Science Press，2009：53-422.(in Chinese)) " target="_blank">
[16]	DAVIES T R H. Spreading of rock avalanche debris by mechanical fluidization[J]. Rock Mechanics，1982，15(1)：9-24. " target="_blank">
[43]	VOIGHT B. Rockslides and avalanches：natural phenomena[M]. New York：Elsevier，1978：113-166. " target="_blank">
[13]	SHREVE R L. Geology and mechanics of the Blackhawk landslide， Lucerne Valley，California[Ph. D. Thesis][D]. California：California Institute of Technology Pasadena，1959. " target="_blank">
[20]	SASSA K. Geotechnical model for the motion of landslides[C]// Proceedings of the 5th International Symposium on Landsides. Rotterdam：A. A. Balkema，1988：37-55. " target="_blank">
[24]	WANG Y F，CHENG Q G，ZHU Q. Surface microscopic examinations of quartz grains from rock avalanche basal travel zones[J]. Canadian Geotechnical Journal，2015，52(2)：167-181. " target="_blank">
[26]	PUDASAINI S P，HSIAU S S，WANG Y Q，et al. Velocity measurements in dry granular avalanches using particle image velocimetry technique and comparison with theoretical predictions[J]. Physics of Fluids，2005，17(9)：1-10. " target="_blank">
[28]	CAGNOLI B，ROMANO G P. Effect of grain size on mobility of dry granular flows of angular rock fragments：an experimental determination[J]. Journal of Volcanology and Geothermal Research，2010，193(1/2)：18-24. " target="_blank">
[29]	YANG Q Q，CAI F，UGAI K，et al. Some factors affecting the frontal velocity of rapid dry granular flows in a large flume[J]. Engineering Geology，2011，122(3/4)：249-260. " target="_blank">
[31]	DUFRESNE A. Granular flow experiments on the interaction with stationary runout path materials and comparison to rock avalanche events[J]. Earth Surfure Process and Landforms，2012，37(14)： 1 527-1 541. " target="_blank">
[33]	ZHOU J W，CUI P，HAO M H. Comprehensive analyses of the initiation and entrainment processes of the 2000 Yigong catastrophic landslide in Tibet，China[J]. Landslides，2014，DOI：10.1007/s10346-014-0553-2. " target="_blank">
[35]	PUDASAINI S P，WANG Y Q，SHENG L T，et al. Avalanching granular flows down curved and twisted channels： theoretical and experimental results[J]. Physics of Fluids，2008，20(7)：073302-073312. " target="_blank">
[37]	WANG G H，HUANG R Q，CHIGIRA M，et al. Landslide amplification by liquefaction of runout-path material after the 2008 Wenchuan(Ms 8.0) earthquake，China[J]. Earth Surface Processes and Landforms，2013，38(3)：265-274.
[38]	王玉峰，程谦恭，朱圻. 汶川地震触发高速远程滑坡-碎屑流堆积反粒序特征及机制分析[J]. 岩石力学与工程学报，2012，31(6)：1 089-1 106.(WANG Yufeng，CHENG Qiangong，ZHU Qi. Inverse grading analysis of deposit from rock avalanches triggered by Wenchuan earthquake[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(6)：1 089-1 106.(in Chinese)) " target="_blank">
[40]	CRUDEN D M，VARNES D J. Landslide types and processes[C]// TURNER A K，SCHUSTER R L ed. Landslides—investigation and mitigation[M]. Washington，D C：National Academy Press，1996：36-75. " target="_blank">
[42]	朱圻，程谦恭，王玉峰，等. 高速远程滑坡超前冲击气浪三维动力学分析[J]. 岩土力学，2014，35(10)：2 909-2 926.(ZHU Qi，CHENG Qiangong，WANG Yufeng，et al. Three-dimensional modelling and dynamic analysis of the airblast generated by rock avalanche[J]. Chinese Journal of Rock and Soil Mechanics，2014，35(10)：2 909-2 926.(in Chinese)) " target="_blank">
[45]	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]. Chinese Journal of Mountain Science，2007，25(1)：72-84.(in Chinese)) " target="_blank">