Evaluation of potential surface instability using finite element methodin Kharsali Village, Yamuna Valley, Northwest Himalaya

doi:10.1007/s11629-017-4410-3

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2017 > Vol14 No.8

	Evaluation of potential surface instability using finite element methodin Kharsali Village, Yamuna Valley, Northwest Himalaya
	Imlirenla JAMIR; Vikram GUPTA; Vipin KUMAR; Glenn T. THONG
刊名	Journal of Mountain Science
	2017-08
卷号	14 期号:8 页码:1666-1676
关键词	Finite Element Method Kharsali Yamuna Valley Landslide Slope Stability Northwest Himalaya
ISSN号	1672-6316
DOI	10.1007/s11629-017-4410-3
通讯作者	Imlirenla JAMIR
文献子类	期刊论文
英文摘要	Kharsali village, located in the Northwest Himalaya near the confluence of the Yamuna River and Unta Gad, is situated on a thick (>150m) paleo-landslide deposit. The village is continuously being eroded at its base by the two rivers. Cracks are noted in most houses while the ancient Shani Temple lying to the south of the village has tilted ~5° towards the northeast. Three slope sections (S-1, S-2, S-3) were modelled and analysed to determine the displacement and shear strain patterns of the slopes. Based on surface failure conditions, potential slope instability of the Kharsali village was evaluated from 2D Finite Element Method (FEM) using Shear Strain Reduction (SSR) analysis in the Phase2 software. Results indicate a critical Stress Reduction Factor (SRF) of 1.5 for the southern edge of the village (S-1) housing the Shani Temple. The development of failure surfaces at its lower portion signifies the propagating, progressive nature of the slope. The S-2 slope section is most vulnerable to slope failure, with a critical SRF of 1.08. This has been inferred by the formation of failure surfaces with displacements of 0.05-0.08 m. The S-3 section in the northern part of the Kharsali shows highest critical SRF of 2.76.The un-metalled road section in the north of the village near S-3 has developed a failure surface with displacement of 0.003-0.004 m, and a zone of subsidence. The S-3 section is relatively stable, whereas the S-2 section is the most vulnerable portion of the village.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18954]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.8
推荐引用方式 GB/T 7714	Imlirenla JAMIR,Vikram GUPTA,Vipin KUMAR,et al. Evaluation of potential surface instability using finite element methodin Kharsali Village, Yamuna Valley, Northwest Himalaya[J]. Journal of Mountain Science,2017,14(8):1666-1676.
APA	Imlirenla JAMIR,Vikram GUPTA,Vipin KUMAR,&Glenn T. THONG.(2017).Evaluation of potential surface instability using finite element methodin Kharsali Village, Yamuna Valley, Northwest Himalaya.Journal of Mountain Science,14(8),1666-1676.
MLA	Imlirenla JAMIR,et al."Evaluation of potential surface instability using finite element methodin Kharsali Village, Yamuna Valley, Northwest Himalaya".Journal of Mountain Science 14.8(2017):1666-1676.