不同岩崩碎屑颗粒尺寸运移堆积特性试验研究

doi:10.13722/j.cnki.jrme.2014.0847

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Abstract

Rock avalanche rock debris caused by rock collapse is very dangerous geological disasters. The debris flow with a sudden can achieve high speed in a very short period of time，and the rocks and detrital material move to a very far distance，the damage and effect range are very great. In order to study the different sizes of rock avalanche flow distance of migration and accumulation characteristics，we have carried out the rock avalanche physical model test of small scale with five different particle sizes of rock detritus dry unconfined particle materials. Experimental results show that under the same test conditions，rock particle size influence on sliding distance and the equivalent friction coefficient is larger. The larger the rock particle size，the greater the sliding distance and pile length，the smaller the equivalent friction coefficient. Five different rock particle sizes are similar of the accumulation form and accumulation width increases along with the increase of particle size. The measured rock particle velocity is greater than the collapse theory calculated value.

Key words： engineering geology rock avalanche rock debris flow accumulation characteristics equivalent friction coefficient

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	Articles by authors
	WANG Zhongfu1
	2
	3
	HE Siming1
	LIU Handong2
	LI Dongdong2

Cite this article:

WANG Zhongfu1,2,3, et al. EXPERIMENTAL STUDY ON ACCUMULATION CHARACTERISTIC OF DIFFERENT ROCK AVALANCHE DEBRIS PARTICLES SIZE[J]. , 2015, 34(S2): 3652-3657.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.0847 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/3652

[1]	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.(CHENGQiangong，ZHANG Zhuoyuan，HUANG Runqiu. Study on dynamics of rock avalanches：state of the artreport[J]. Journal ofMountain Science，2007，25(1)：72-84.(in Chinese))
[2]	HEIM A.Landslides and human lives[M]. Vancouver：BergsturzandMenschenlebenPress，1932：218-219.
[3]	SHREVE RL. Sherman landslide Alaska[J]. Science，1966，154：1639-1643.
[4]	ERISMANN TH. Mechanisms of large landslides[J]. RockMechanicsFelsmechanikMécanique des Roches，1979，12(1)：15-46.
[5]	DAVIES TRH.Spreading of rock avalanche debris by mechanical fluidization[J]. RockMechanics Felsmechanik Mécanique des Roches，1982，5(1)：9-24.
[6]	KENT PE. The transport mechanism in catastrophic rock falls[J]. The Journal ofGeology，1966，74：79-83.
[7]	MELOSH HJ.Acoustic fluidization-new geologic process[J]. Journal of GeophysicalResearch，1979，84(NB13)：7513-7520.
[8]	DADEW B，HUPPERTH E. Long runout rockfalls[J]. Geology，1998，26：803-806.
[9]	EGASHIRA S，HONDAN，ITOHT.Experimental study on theentrainment of bed material into debris flow[J]. Physics andChemistry of the Earth，2001，26(9)：645-650.
[10]	OKURA Y，KITAHARA H，SAMMORI T. Fluidization in dry landslides[J].Engineering Geology，2000，56：347-360.
[11]	王思敬，王效宁. 大型高速滑坡的能量分析及其灾害预测[C] //滑坡论文集编委会编. 滑坡论文集. 成都：四川科技出版社，1989.(WANG Sijing，WANG Xiaoning. Analysis of energy on large-scale high speed landslide and their catastrophic prediction[C]// Proceedings of Landslide.Chengdu：Sichuan Science and Technology Press，1989.(in Chinese))
[12]	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[J].Chinese Journal of Rock Mechanics and Engineering，2000，19(6)：742-746.(in Chinese))
[13]	DENLINGER RP，IVERSON RM. Flow of variably fluidized granular masses acrossthree-dimensional terrain 2. Numerical predictions and experimental tests[J]. Journal ofGeophysical Research B：Solid Earth，2001，106(B1)：553-566.
[14]	DENLINGER RP，IVERSON RM. Granular avalanches across irregular three-dimensionalterrain：theory and computation[J]. Journal of Geophysical Research，2004，doi：10.1029/2003JF000085.
[15]	DENLINGER RP，IVERSON RM. Flow of variably fluidized granular massesacross three-dimensional terrain，numerical predictionsand experimental tests[J].Journal of Geophysical Research B：Solid Earth.2004.
[16]	IVERSON RM，DENLINGER RP.Flow of variably fluidized granular masses acrossthree-dimensional terrain I. coulomb mixture theory[J]. Journal of GeophysicalResearch B：Solid Earth，2001，106(B1)：537-552.
[17]	IVERSON RM，LOGAN M，DENLINGER RP.Granular avalanches across irregularthree-dimensional terrain：2. Experimental tests[J]. Journal of GeophysicalResearch，2004，109(F1).
[18]	MANZELLA I，LABIOUSE V. Rock avalanches：experimental study of the mainparameters influencing propagation[C]//Proceedings of the11th ISRM. Lisbon：[s. n.]，2007：657-660.
[19]	MANZELLA I，LABIOUSE V. Qualitative analysis of rock avalanchespropagation bymeans of physical modelling of non-constrained gravel flows[J]. RockMechanicsand RockEngineering，2008，41(1)：133-151.
[20]	MANZELLA I，LABIOUSE V. Gravel and small bricks flow experiments to investigateparameters and mechanisms involved in rock avalanches[J]. Engineering Geology Journal，2008，109：146-158.
[21]	秦云，姜清辉，郭慧黎. 滑坡速度预测的计算方法探讨[J]. 岩土力学，2008，29(增1)：373-378.(QIN Yun，JIANG Qinghui，GUO Huili. Discussion on two methods for predicting velocity of landslides[J].Rock and Soil Mechanics，2008，29(Supp.1)：373-378.(in Chinese))
[22]	王涛，盛谦，熊将. 基于颗粒流方法自然崩落法数值模拟研究[J]. 岩石力学与工程学报，2007，26(2)：4 202-4 207.(WANG Tao，SHENG Qian，XIONG Jiang. Research on numerical simulation of natural caving method based on particle flow method[J]. ChineseJournal of Rock Mechanics and Engineering，2007，26(2)：4 202-4 207.(in Chinese))