干旱区生态环境知识资源中心(Arid): Research Article Influences of Hydrodynamic Force on Deep Relaxation Rockslide in Cold and Arid Areas of Langjia Reservoir in China

Arid

DOI	10.2113/2022/4881462
	Research Article Influences of Hydrodynamic Force on Deep Relaxation Rockslide in Cold and Arid Areas of Langjia Reservoir in China
	Zhang, Xuan; Zhu, Chun; Li, Zinan; Ling, Wansheng; Zhang, Faming
通讯作者	Zhu, C
来源期刊	LITHOSPHERE
ISSN	1941-8264
EISSN	1947-4253
出版年	2022
卷号	2021
英文摘要	This research took the Langjia landslide in Qinghai Province of China as an example to explore the failure mechanism and mode of deep relaxation rockslide at cold and arid areas of the plateau under the influence of temperature difference, rainfall. Studies showed that deep relaxation tension cracks are the main precondition of the occurrence of the landslide, and the main triggering factor was the strong weathering and disintegration of argillaceous cemented conglomerate on sliding surface. Affected by rainfall, snow melting, and temperature, the water trapped in tensile cracks froze to ice in winter to accelerate the development of cracks and melt into water in spring and summer to accelerate the weathering process. The process led to forming a sliding surface of mud rock with gravel by weathering the argillaceous cemented conglomerate along the cracks, which was confirmed by field investigation after occurrence of the landslide. For this special failure type, calculation formula on considering rolling friction, sliding friction, and bottom shear stress was proposed, and the influence of shear stress on sliding surface on landslide stability under the seepage caused by rainfall and summer melt water when landslide occurred was discussed. The calculation results of three-dimensional numerical simulation and improved Sarma's method on considering the hydrodynamic action on relaxation slope stability are consistent with the actual situation.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000772881400004
WOS关键词	SLOPE STABILITY ; LANDSLIDE ; ROCK ; MECHANISMS ; FAILURE
WOS类目	Geochemistry & Geophysics ; Geology
WOS研究方向	Geochemistry & Geophysics ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393756
推荐引用方式 GB/T 7714	Zhang, Xuan,Zhu, Chun,Li, Zinan,et al. Research Article Influences of Hydrodynamic Force on Deep Relaxation Rockslide in Cold and Arid Areas of Langjia Reservoir in China[J],2022,2021.
APA	Zhang, Xuan,Zhu, Chun,Li, Zinan,Ling, Wansheng,&Zhang, Faming.(2022).Research Article Influences of Hydrodynamic Force on Deep Relaxation Rockslide in Cold and Arid Areas of Langjia Reservoir in China.LITHOSPHERE,2021.
MLA	Zhang, Xuan,et al."Research Article Influences of Hydrodynamic Force on Deep Relaxation Rockslide in Cold and Arid Areas of Langjia Reservoir in China".LITHOSPHERE 2021(2022).