滑坡碎屑流高速远程机制环剪试验研究

doi:10.13722/j.cnki.jrme.2014.1609

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Abstract Catastrophic event induced by rapid long runout rockslide debris occurs frequently in West mountainous areas of China. There is an urgent need to study transport mechanisms of this kind of geohazard. Taking the Wenjiagou rockslide debris triggered by 2008 Wenchuan earthquake for example，the paper studies the internal structure of its deposit through the gully exposed in the deposit. The result indicates that “inverse grading” structure is obvious in the deposit，and the mean size of grains gradually increases from the base to the surface. The ring shear test is used to model the long-shear course of grains at different depths during transport course. The results suggest that grain crushing is one of the main reasons leading to inverse grading structure of the deposits. During transport，the normal stress is largest at the base and progressively decreases from the bottom up to the surface. The grains at the base experiences maximum normal and shear stresses and are crushed to finest material. Accordingly，the frictional resistance of the grains at the base decreases，reducing the frictional resistance between debris and the ground. We term this process the “finer-base effect” and suggest that it may be one of the mechanisms leading to high speed and long runout of rockslide debris. The conclusions of this paper could be a scientific basis for hazardous forecasting of rapid and long-runout rockslide debris in mountainous areas in West China.

Key words： slope engineering rockslide debris transport mechanisms inverse grading ring shear test grain crushing

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	Articles by authors
	ZHANG Ming1
	2
	WANG Zhengbo1
	2
	SUN Lin3

Cite this article:

ZHANG Ming1,2,WANG Zhengbo1, et al. Research on rapid and long-runout mechanisms of rockslide debris using ring shear tests[J]. , 2016, 35(S1): 2673-2681.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.1609 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS1/2673

[1]	FRANCIS PW，BAKER MCW. Mobility of pyroclastic flows[J]. Nature，1977，270：164-165.
[2]	EVANSSG. Rock avalanche run-up record[J]. Nature，1989，340：371.
[3]	CRANDELL D R，MILLER C D，GLICKEN H X，et al. Catastrophic debris avalanche from ancestral Mount Shasta volcano[J]. California Geology，1984，12(3)：143-146.
[4]	詹铮，李曰国，黎克武. 洒勒山滑坡分析[J]. 山地研究，1986，4(2)：145-152.(ZHAN Zheng，LI Yueguo，LI Kewu. Analysis on Saleshan landslide[J]. Mountain Research，1986，4(2)：145-152.(in Chinese))
[5]	唐川. 昭通头寨沟特大型灾害性滑坡研究[J].云南地理环境研究，1991，3(2)：64-71.(TANG Chuan. A study on large-scale catastrophic landslide at Touzai Gully of Zhaotong[J]. Yunnan Geographic Environment Research，1991，3(2)：64-71.(in Chinese))
[6]	殷跃平. 西藏波密易贡高速巨型滑坡特征及减灾防灾研究[J].水文地质工程地质，2000，(4)：8-11.(YIN Yueping. Research on Characteristics and hazard prevention of rapid huge landslide in Yigong，Bomi，Tibet[J]. Hydrogeology and Engineering Geology，2000，(4)：8-11.(in Chinese))
[7]	刘伟. 西藏易贡巨型超高速远程滑坡地质灾害链特征研析[J].中国地质灾害与防治学报，2002，13(3)：9-18.(LIU Wei. Study on the characteristics of huge scale-super highspeed-long distance landslide chain in Yigong，Tibet[J]. The Chinese Journal of Geological and Control，2002，13(3)：9-18.(in Chinese))
[8]	殷跃平. 汶川八级地震地质灾害研究[J].工程地质学报，2008，16(4)：433-444.(YIN Yueping. Researches on the geo-hazards triggered by Wenchuan earthquake，Sichuan[J]. Journal of Engineering Geology，2008，16(4)：433-444.(in Chinese))
[9]	殷跃平. 汶川八级地震滑坡特征分析[J].工程地质学报，2009，17(1)：29-38. (YIN Yueping. Feature of landslides triggered by the Wenchuan earthquake[J]. Journal of Engineering Geology，2009，17(1)：29-38.(in Chinese))
[10]	殷跃平，潘桂棠，刘宇平，等.汶川地震地质与滑坡灾害概论[M].北京：地质出版社，2009：1-99.(YIN Yueping，PAN Guitang，LIU Yuping，et al. Great Wenchuan earthquake：seismogeology and landslide hazards[M]. Beijing：Geological Publish House，2009：1-99.(in Chinese))
[11]	黄润秋，唐川，李勇，等. 汶川地震地质灾害研究[M].北京：科学出版社，2009：1-356.(HUANG Runqiu，TANG Chuan，LI Yong，et al. Geohazard assessment of the Wenchuan Earthquake[M]. Beijing：Science Press，2009：1-356.(in Chinese))
[12]	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，2010：1-473.(XU Qiang，PEI Xiangjun，HUANG Runqiu. Large-scale landslides induced by the Wenchuan earthquake[M]. Beijing：Science Press，2010：1-473.(in Chinese))
[13]	殷跃平. 斜倾厚层山体滑坡视向滑动机制研究——以重庆武隆鸡尾山滑坡为例[J].岩石力学与工程学报，2010，29(2)：217-226.(YIN Yueping. Mechanism of apparent dip slide of inclined bedding rockslide—a case study of Jiweishan rockslide in Wulong，Chongqing[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(2)：217-226.(in Chinese))
[14]	刘传正. 重庆武隆鸡尾山危岩体形成与崩塌成因分析[J].工程地质学报，2010，18(3)：297-304.(LIU Chuanzheng. Mechanism analysis on the Jiweishan rockslide disaster happened in Wulong，Chongqing，June 5，2009[J]. Journal of Engineering Geology，2010，18(3)：297-304.(in Chinese))
[15]	殷跃平，朱继良，杨胜元.贵州关岭大寨高速远程滑坡-碎屑流研究[J].工程地质学报，2010，18(4)：445-454.(YIN Yueping，ZHU Jiliang，YANG Shengyuan. Investigation of a high speed and long run-out rockslide-debris flow at Dazhai in Guanling of Guizhou Province[J]. Journal of Engineering Geology，2010，18(4)：445-454 .(in Chinese))
[16]	刘传正. 贵州关岭大寨崩滑碎屑流灾害初步研究[J].工程地质学报，2010，18(5)：623-630.(LIU Chuanzheng. Preliminary findings on Dazhai landslide-debris flow disaster in Guizhou Province of June 28，2010[J]. Journal of Engineering Geology，2010，18(5)：623-630.(in Chinese))
[17]	BUSS E，HEIM A. Der Bersturz von Elm[J]. Zurich，Wurster andCie，1881：163.
[18]	KENT P E. The transport mechanism in catastrophic rock falls[J].Geology，1966，74(1)：79-83.
[19]	SHREVE R L. The Blackhawk landslides[J]. GeologicalSociety ofAmerica Special Paper，1968，108(1)：1-47.
[20]	YIN Y，XING A. Aerodynamic modeling of the Yigong gigantic rock slide-debris avalanche，Tibet，China[J]. Bulletin of Engineering Geology and Environment，2012，71(1)：149-160.
[21]	EISBACHER G H. Cliff collapse and rock avalanches(sturstroms) in the Mackenzie Mountains，northwestern Canada[J]. Canadian Geotechnical Journal，1979，16(2)：309-334.
[22]	DAVIESTRH，MCSAVENEYMJ，HODGSONKA. A fragmentation-spreading model for long- runout rock avalanches[J].Canadian Geotechnical Journal，1999，36(6)：1096-1110.
[23]	OKURA Y，KITAHARA H，SAMMORI T，et al. The effects of rockfall volume on runout distance[J].Engineering Geology，2000，58(2)：109-124.
[24]	SASSA K. Geotechnical model for the motion of landslides[C]// Proceedings of the 5th International Symposium on Landslides. Lausanne，Switzerland：[s. n.]，1988：37-55.
[25]	DELINE P. Interactions between rock avalanches and glaciers in the Mount Blanc mass if during the late Holocene[J]. Quaternary Science Reviews，2009，28(11/12)：1070-1083.
[26]	PUDASAINI S P. A general two-phase debris flow model[J].Journal of Geophysical Research，2012，117(F3)：1-28.
[27]	HSU K J. Catastrophic debris streams(sturzstrom) generated by rock falls[J].Geological Society of America Bulletin，1975，86(1)：129-140.
[28]	DAVIES TRH. Spreading of rock avalanche debris by mechanical fluidization[J].Rock Mechanics，1982，15(1)：9-24.
[29]	MELOSHHJ. Steady flow of acoustically fluidized long runout landslides[C]// American Geophysical Union，Fall Meeting. [S. l.]：[s. n.]，2001：0295.
[30]	DAVIES TRH，MCSAVENEY MJ，DEGANUTTI AM. Dynamic rock fragmentation causes low rock-on-rock friction[C]//Proceedings of the 1st Canada-US Rock Mechanics Symposium. Vancouver，Canada：[s. n.]，2007：959-966.
[31]	DAVIES TRH，MCSAVENEY M，BOULTON CJ. Elastic strain energy release from fragmenting grains：effects on fault rupture[J].Journal of Structural Geology，2012，38(1)：265-277.
[32]	KORNERHJ. Flow mechanisms and resistances in the debris streams of rockslides[J].Bulletin of the International Association of Engineering Geology，1977，16(1)：101-104.
[33]	黄润秋，王士天，张倬元. 斜坡岩体高速滑动的“滚动摩擦”机制[M]. 成都：成都科技大学出版社，1989：318-325.(HUANG RUNQIU，WANG Shitian，ZHANG Zhuoyuan. Rolling friction mechanism of rapid movement of slope rock[M]. Chengdu：Chengdu Technology University Press，1989：318-325.(in Chinese))
[34]	SOSIO R，CROSTA G B，HUNGR O. Complete dynamic modeling calibration for the Thurwieser rock avalanche (Italian Central Alps) [J].Engineering Geology，2008，100(1)：11-26.
[35]	PIRULLI M. The Thurwieser rock avalanche(Italian Alps)：Description and dynamic analysis[J].Engineering Geology，2009，109(1)：80-92.
[36]	FRIEDMANN S J，TABERLET N，LOSERT W. Rock-avalanche dynamics：insights from granular physics experiments[J].International Journal of Earth Science，2006，95(5)：911-919.
[37]	HUTTER K，KOCH T，PLUUSS C，et al. The dynamics of avalaches of granular materials from initiation to runout，part II. experiments[J].Acta Mechanica，1995，109(1/4)：127-165.
[38]	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.
[39]	殷跃平，成余粮，王军，等. 汶川地震触发大光包巨型滑坡遥感研究[J].工程地质学报，2011，19(5)：674-684.(YIN Yueping，CHENG Yuliang，WANG Jun，et al. Remote sensing research on Daguangbao gigantic rockslide triggered by Wenchuan earthquake[J]. Journal of Engineering Geology，2011，19(5)：674-684.(in Chinese))
[40]	吴树仁，王涛，石玲，等. 2008年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 on catastrophic landslides triggered by 2008 great Wenchuan earthquake，Sichuan，China[J]. Journal of Engineering Geology，2010，18(2)：145-159.(in Chinese))
[41]	王涛.汶川地震重灾区地质灾害危险性评估研究[博士学位论文][D]. 北京：中国地质科学院，2010.(WANG Tao. Study on seismic landslide hazard assessment in Wenchuan earthquake severely afflicted area[Ph. D. Thesis][D]. Beijing：Chinese Academy of Geological Sciences，2010.(in Chinese))
[42]	YARNOLD J C. Rock-avalanche characteristics in dry climates and the effect of flow into lakes：Insights from mid-Tertiary sedimentary breccias near Artillery Peak，Arizona[J]. Geological Society of America Bulletin，1993，105(3)：345-360.
[43]	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)：1089-2006.(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)：1089-2006.(in Chinese))
[44]	SASSA K.The mechanism starting liquefied landslides and debris flows[C]// Proceedings of 4th International Symposium on Landslides. Toronto，Canada：[s. n.]，1984：349-354.
[45]	SASSA K，FUKUOKA H，WANG G，et al. Undrained dynamic-loading ring shear apparatus and its application to landslide dynamics[J].Landslides，2004，1(1)：7-19.
[46]	ZHANG M，YIN Y，HU R，et al. Ring shear test for transform mechanism of slide-debris flow[J]. Engineering Geology，2011，118(1)：55-62.
[47]	DUNNING S，ARMITAGE P J. The grain-size distribution of rock-avalanche deposits：implications for natural dam stability[C]// Natural and Artificial Rockslide Dams. Lecture Notes in Earth Sciences，2011：479-498.
[48]	钱家欢，殷宗泽. 土工原理与计算[M]. 北京：中国水利水电出版社，1999：290-301.(QIAN Jiahuan，YIN Zongze. Principle and calculation of geotechnical engineering[M]. Beijing：China WaterPower Press，1999：290-301.(in Chinese))