Uncertainty of rainfall-induced landslides considering spatial variability of parameters

Jing Sen Cai; Tian Chyi Jim Yeh; E. Chuan Yan; Yong Hong Hao; Shao Yang Huang; Jet Chau Wen

doi:10.1016/j.compgeo.2017.02.009

Uncertainty of rainfall-induced landslides considering spatial variability of parameters

Jing Sen Cai, Tian Chyi Jim Yeh, E. Chuan Yan, Yong Hong Hao, Shao Yang Huang, Jet Chau Wen

Hydrology and Water Resources

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

A cross-correlation analysis is conducted to determine the impacts of the heterogeneity of hydraulic conductivity K_s, soil cohesion c′ and soil friction angle (tan φ′) on the uncertainty of slope stability in time and space during rainfall. We find the relative importance of tan φ′ and c′ depends on the effective stress. While the sensitivity of the stability to the variability of K_s is small, the large coefficient of variation of K_s may exacerbate the variability of pore-water pressure. Therefore, characterizing the heterogeneity of hydraulic properties and pore-water distribution in the field is critical to the stability analysis.

Original language	English (US)
Pages (from-to)	149-162
Number of pages	14
Journal	Computers and Geotechnics
Volume	87
DOIs	https://doi.org/10.1016/j.compgeo.2017.02.009
State	Published - Jul 1 2017

Keywords

Cross correlation
Hydraulic conductivity
Rainfall infiltration
Shear strength
Slope stability uncertainty
Spatial variability

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Computer Science Applications

Access to Document

10.1016/j.compgeo.2017.02.009

Fingerprint Dive into the research topics of 'Uncertainty of rainfall-induced landslides considering spatial variability of parameters'. Together they form a unique fingerprint.

Cite this

@article{256e7f9c2e3344a0b11ee1349b04a0a6,

title = "Uncertainty of rainfall-induced landslides considering spatial variability of parameters",

abstract = "A cross-correlation analysis is conducted to determine the impacts of the heterogeneity of hydraulic conductivity Ks, soil cohesion c′ and soil friction angle (tan φ′) on the uncertainty of slope stability in time and space during rainfall. We find the relative importance of tan φ′ and c′ depends on the effective stress. While the sensitivity of the stability to the variability of Ks is small, the large coefficient of variation of Ks may exacerbate the variability of pore-water pressure. Therefore, characterizing the heterogeneity of hydraulic properties and pore-water distribution in the field is critical to the stability analysis.",

keywords = "Cross correlation, Hydraulic conductivity, Rainfall infiltration, Shear strength, Slope stability uncertainty, Spatial variability",

author = "Cai, {Jing Sen} and Yeh, {Tian Chyi Jim} and Yan, {E. Chuan} and Hao, {Yong Hong} and Huang, {Shao Yang} and Wen, {Jet Chau}",

note = "Funding Information: This work was supported by the China Scholarship Council (Grant No. 201406410032); the National Natural Science Foundation of China (Grant Nos. 41172282, 41672313, 51409029, and 51479014); the Strategic Environmental Research and Development Program (Grant No. ER-1365); the Environmental Security and Technology Certification Program (Grant No. ER201212); the National Science Foundation-Division of Earth Sciences (Grant No. 1014594). The second author also acknowledges the Outstanding Oversea Professorship award through Jilin University from Department of Education, China as well as the Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City.",

year = "2017",

month = jul,

day = "1",

doi = "10.1016/j.compgeo.2017.02.009",

language = "English (US)",

volume = "87",

pages = "149--162",

journal = "Computers and Geotechnics",

issn = "0266-352X",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Uncertainty of rainfall-induced landslides considering spatial variability of parameters

AU - Cai, Jing Sen

AU - Yeh, Tian Chyi Jim

AU - Yan, E. Chuan

AU - Hao, Yong Hong

AU - Huang, Shao Yang

AU - Wen, Jet Chau

N1 - Funding Information: This work was supported by the China Scholarship Council (Grant No. 201406410032); the National Natural Science Foundation of China (Grant Nos. 41172282, 41672313, 51409029, and 51479014); the Strategic Environmental Research and Development Program (Grant No. ER-1365); the Environmental Security and Technology Certification Program (Grant No. ER201212); the National Science Foundation-Division of Earth Sciences (Grant No. 1014594). The second author also acknowledges the Outstanding Oversea Professorship award through Jilin University from Department of Education, China as well as the Global Expert award through Tianjin Normal University from the Thousand Talents Plan of Tianjin City.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - A cross-correlation analysis is conducted to determine the impacts of the heterogeneity of hydraulic conductivity Ks, soil cohesion c′ and soil friction angle (tan φ′) on the uncertainty of slope stability in time and space during rainfall. We find the relative importance of tan φ′ and c′ depends on the effective stress. While the sensitivity of the stability to the variability of Ks is small, the large coefficient of variation of Ks may exacerbate the variability of pore-water pressure. Therefore, characterizing the heterogeneity of hydraulic properties and pore-water distribution in the field is critical to the stability analysis.

AB - A cross-correlation analysis is conducted to determine the impacts of the heterogeneity of hydraulic conductivity Ks, soil cohesion c′ and soil friction angle (tan φ′) on the uncertainty of slope stability in time and space during rainfall. We find the relative importance of tan φ′ and c′ depends on the effective stress. While the sensitivity of the stability to the variability of Ks is small, the large coefficient of variation of Ks may exacerbate the variability of pore-water pressure. Therefore, characterizing the heterogeneity of hydraulic properties and pore-water distribution in the field is critical to the stability analysis.

KW - Cross correlation

KW - Hydraulic conductivity

KW - Rainfall infiltration

KW - Shear strength

KW - Slope stability uncertainty

KW - Spatial variability

UR - http://www.scopus.com/inward/record.url?scp=85014128976&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85014128976&partnerID=8YFLogxK

U2 - 10.1016/j.compgeo.2017.02.009

DO - 10.1016/j.compgeo.2017.02.009

M3 - Article

AN - SCOPUS:85014128976

VL - 87

SP - 149

EP - 162

JO - Computers and Geotechnics

JF - Computers and Geotechnics

SN - 0266-352X

ER -