气候变化领域集成服务门户(CCPortal): Shear dilatancy mechanism and process simulation of rapid sliding of saturated loose deposits

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DOI	10.16285/j.rsm.2018.0407
	Shear dilatancy mechanism and process simulation of rapid sliding of saturated loose deposits
	He Zi-lu; Liu Wei; He Si-ming; Yan Shuai-xing
通讯作者	He, SM (通讯作者)
发表日期	2019
ISSN	1000-7598
起始页码	2389
结束页码	2396
卷号	40 期号:6
英文摘要	The saturated loose deposits formed by engineering waste and earthquake landslide deposits under rainfall conditions have strong mobility, their movement speeds are fast, and the damage scopes are larger than expected. Their internal mechanisms have always been a hot research issue in international academic circles. In this paper, the saturated deposit shear dilatancy model constructed by Iverson based on the limit state soil mechanics principle is integrated into the physical model of the Savage-Hutter slide motion physical model. The finite volume method is used to solve the landslide kinetic equations and achieve full simulation of the motion evolution of the saturated loose accumulation body. Finally, a back in-situ analysis of the catastrophic construction solid waste landslide that occurred in Shenzhen in December 2015 is presented and evolution process of the landslide is reproduced. The results show that the dilatancy effect is the main reason for rapid movement of the saturated loose accumulation bodies and the initial state (void ratio or volume fraction of solid phase) of the saturated loose deposit has a crucial influence on its motion-accumulation evolution process.
关键词	2-LAYER MODEL LANDSLIDE MOBILITY DEBRIS FLOWS
英文关键词	saturated loose accumulation body; dilatancy; mobility; physics model; computation simulation
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Geological
WOS记录号	WOS:000487852600037
来源期刊	ROCK AND SOIL MECHANICS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259518
推荐引用方式 GB/T 7714	He Zi-lu,Liu Wei,He Si-ming,et al. Shear dilatancy mechanism and process simulation of rapid sliding of saturated loose deposits[J]. 中国科学院青藏高原研究所,2019,40(6).
APA	He Zi-lu,Liu Wei,He Si-ming,&Yan Shuai-xing.(2019).Shear dilatancy mechanism and process simulation of rapid sliding of saturated loose deposits.ROCK AND SOIL MECHANICS,40(6).
MLA	He Zi-lu,et al."Shear dilatancy mechanism and process simulation of rapid sliding of saturated loose deposits".ROCK AND SOIL MECHANICS 40.6(2019).