基于块体离散元的高速远程滑坡灾害动力学研究

doi:10.13722/j.cnki.jrme.2019.0158

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Abstract The fracture and disaster-causing mechanism of high-speed and long run-out landslides is one difficulty of landslide disasters. In order to deeply study the dynamic process of landslides from continuum to discontinuum，a cohesive fracture model is proposed based on block discrete element method. High-performance parallel computing based on graphics processor unit(GPU) is achieved， and a coupling simulation platform called couping discrete element method platform(CoDEM) is developed. Taking Yigong landslide as an example，the whole process of higher body collapsing，old landslide body resurrecting，debris flowing at a high speed and dam forming is studied systematically. Comparison between the numerical results and in-situ survey data is performed.It is shown that the numerical results including accumulation boundary and material components are in good agreement with the actual situation of the landslide. According to the dynamics characteristics during the landslide at different stages，the landslide area can be divided into four parts such as the initiation zone，the buffer zone，the circulation zone and the braking zone.

Key words： slope engineering high-speed and long run-out landslide cohesive fracture model block discrete element method graphics processing unit(GPU) coupling DEM(CoDEM)

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	Articles by authors
	LIU Guangyu1
	XU Wenjie1
	TONG Bin2
	WANG Lichao2

Cite this article:

LIU Guangyu1,XU Wenjie1,TONG Bin2, et al. Study on dynamics of high-speed and long run-out landslide hazards based on block discrete element method[J]. , 2019, 38(8): 1557-1566.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2019.0158 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/I8/1557

[1]	黄润秋. 20世纪以来中国的大型滑坡及其发生机制[J]. 岩石力学与工程学报，2007，26(3)：433-454.(HUANG Runqiu. Large-scale landslides and their sliding mechanisms in China since the 20th century[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(3)：433-454.(in Chinese))
[2]	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 Yin，CHENG Qiangong，WANG Yufeng，et al. Three-dimensional modelling and dynamic analysis of the airblast generated by rock avalanche[J]. Rock and Soil Mechanics，2014，35(10)：2 909-2 926.(in Chinese))
[3]	许强，黄润秋，殷跃平，等. 2009年6•5重庆武隆鸡尾山崩滑灾害基本特征与成因机制初步研究[J]. 工程地质学报，2009，17(4)：433-444.(XU Qiang，HUANG Runqiu，YIN Yueping，et al. The Jiweishan landslide of June 5，2009 in Wulong，Chongqing：Characteristics and failure mechanism[J]. Journal of Engineering Geology，2009，17(4)：433-444.(in Chinese))
[4]	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))
[5]	SASSA K. Geotechnical model for the motion of landslides[C]// Proceedings of the 5th International Symposium on Landslides. [S. l.]：[s. n.]，1988：37-55.
[6]	黄润秋，裴向军，李天斌. 汶川地震触发大光包巨型滑坡基本特征及形成机制分析[J]. 工程地质学报，2008，16(6)：730-741.(HUANG Runqiu，PEI Xiangjun，LI Tianbin. Basic characteristic and formation mechanism of the largest scale landslide at Daguangbao occurred during the Wenchuan Earthquake[J]. Journal of Engineering Geology，2008，16(6)：730-741.(in Chinese))
[7]	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，2009：1-10.(YIN Yueping，PAN Guitang，LIU Yuping，et al. Introduction to Wenchuan earthquake geology and landslide disaster[M]. Beijing：Geological Publishing Press，2009：1-10.(in Chinese))
[8]	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))
[9]	王玉峰，程谦恭，张柯宏，等. 高速远程滑坡裹气流态化模型试验研究[J]. 岩土力学，2014，35(10)：2 775-2 786.(WANG Yufeng，CHENG Qiangong，ZHANG Kehong，et al. Study of fluidized characteristics of rock avalanches under effect of entrapped air[J]. Rock and Soil Mechanics，2014，35(10)：2 775-2 786.(in Chinese))
[10]	许强，李为乐，董秀军，等. 四川茂县叠溪镇新磨村滑坡特征与成因机制初步研究[J]. 岩石力学与工程学报，2017，36(11)：2 612- 2 628.(XU Qiang，LI Weile，DONG Xiujun，et al. The Xinmocun landslide on June 24，2017 in Maoxian，Sichuan：Characteristics and failure mechanism[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(11)：2 612-2 628.(in Chinese))
[11]	KUO C Y，TAI Y C，BOUCHUT F，et al. Simulation of Tsaoling landslide，Taiwan，based on Saint Venant equations over general topography[J]. Engineering Geology，2009，104(3/4)：181-189.
[12]	XU W J，XU Q，WANG Y J. The mechanism of high-speed motion and damming of the Tangjiashan landslide[J]. Engineering Geology，2013，157：8-20.
[13]	WU J H，CHEN C H. Application of DDA to simulate characteristics of the Tsaoling landslide[J]. Computers and Geotechnics，2011，38(5)：741-750.
[14]	张龙，唐辉明，熊承仁，等. 鸡尾山高速远程滑坡运动过程PFC3D模拟[J]. 岩石力学与工程学报，2012，31(增1)：2 601-2 611. (ZHANG Long，TANG Huiming，XIONG Chengren，et al. Movement process simulation of high-speed long-distance Jiweishan landslide with PFC3D[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：2 601-2 611.(in Chinese))
[15]	葛云峰，唐辉明，熊承仁，等. 滑动面力学参数对滑坡稳定性影响研究——以重庆武隆鸡尾山滑坡为例[J]. 岩石力学与工程学报，2014，33(增2)：3 873-3 884.(GE Yunfeng，TANG Huiming，XIONG Chengren，et al. Effect of sliding plane mechanical parameters on landslide stability——A case study of Jiweishan rockslide in Wulong，Chongqing[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(Supp.2)：3 873-3 884.(in Chinese))
[16]	LIN C H，LIN M L. Evolution of the large landslide induced by Typhoon Morakot：a case study in the Butangbunasi River，Southern Taiwan using the discrete element method[J]. Engineering Geology，2015，197：172-187.
[17]	SCARINGI G，FAN X，XU Q，et al. Some considerations on the use of numerical methods to simulate past landslides and possible new failures：the case of the recent Xinmo landslide(Sichuan，China)[J]. Landslides，2018，15(7)：1 359-1 375.
[18]	POTYONDY D O，CUNDALL P A. A bonded-particle model for rock[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(8)：1 329-1 364.
[19]	LUC S，FRÉDÉRIC-VICTOR D. A DEM model for soft and hard rocks：Role of grain interlocking on strength[J]. Journal of the Mechanics and Physics of Solids，2013，61(2)：352-369.
[20]	CUNDALL P A. Formulation of a three-dimensional distinct element model—Part I. A scheme to detect and represent contacts in a system composed of many polyhedral blocks[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1988，25(3)：107-116.
[21]	ITASCA. 3DEC(Three-dimensional distinct element code)[M]. USA：Itasca Consulting Group Inc.，2013：1-55.
[22]	BRIDEAU M A，STURZENEGGER M，STEAD D，et al. Stability analysis of the 2007 Chehalis lake landslide based on long-range terrestrial photogrammetry and airborne LiDAR data[J]. Landslides，2012，9(1)：75-91.
[23]	GOVENDER N，RAJAMANI R K，KOK S，et al. Discrete element simulation of mill charge in 3D using the BLAZE-DEM GPU framework[J]. Minerals Engineering，2015，79：152-168.
[24]	GOVENDER N，WILKE DN，PIZETTE P，et al. A study of shape non-uniformity and poly-dispersity in hopper discharge of spherical and polyhedral particle systems using the Blaze-DEM GPU code[J]. Applied Mathematics and Computation，2017，319：318-336.
[25]	GOVENDER N，WILKE D N，WU C Y，et al. Hopper flow of irregularly shaped particles(non-convex polyhedra)：GPU-based DEM simulation and experimental validation[J]. Chemical Engineering Science，2018，188：34-51.
[26]	CUNDALL P A，STRACK O D L. A discrete numerical model for granular assemblies[J]. Geotechnique，1979，29(1)：47-65.
[27]	王泳嘉，邢纪波. 离散单元法及其在岩土力学中的应用[M]. 沈阳：东北大学出版社，1991：1-8.(WANG Yongjia，XING Jibo. Discrete element method and its application in geotechnical mechanics[M]. Shenyang：Northeastern University Press，1991：1-8.(in Chinese))
[28]	刘明贵，刘绍波，张国华. GPU通用计算模式在岩土工程中的应用[J]. 岩土力学，2010，31(9)：3 019-3 024.(LIU Minggui，LIU Shaobo，ZHANG Guohua. Application of general-purpose computation on GPUs to geotechnical engineering[J]. Rock and Soil Mechanism，2010，31(9)：3 019-3 024.(in Chinese))
[29]	XU Q，SHANG Y，ASCH T V，et al. Observations from the large，rapid Yigong rock slide-debris avalanche，southeast Tibet[J]. Canadian Geotechnical Journal，2012，49(5)：589-606.
[30]	殷跃平. 西藏波密易贡高速巨型滑坡特征及减灾研究[J]. 水文地质工程地质，2000，27(4)：8-11.(YIN Yueping. Rapid huge landslide and hazard reduction of Yigong River in the Bomi，Tibet[J]. Hydrogeology and Engineering Geology，2000，27(4)：8-11.(in Chinese))