Sensitivity analysis in stability evaluation of earthen embankments

Takayuki Shuku; Shin Ichi Nishimura

doi:10.3208/jgssp.JPN-034

Sensitivity analysis in stability evaluation of earthen embankments

Takayuki Shuku, Shin Ichi Nishimura

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

Abstract

This study has investigated sensitivities of input parameters in stability analysis of embankments to safety factor Fs based on experimental deign. In addition to the geotechnical parameters, parameters about geometry such as height, width, and slope gradient of embankments were also considered in the analysis. This study applied regression analysis based on orthogonal design to the sensitivity analysis. The geotechnical parameters required for the stability analysis were used in the sensitivity analysis, and the sensitivity of these parameters to Fs was investigated. The results of the sensitivity analysis showed that the parameters about geometry of embankments such as height and slope gradient are more sensitive to Fs, although the parameters about hydraulic characteristics of embankment material are less sensitive to the Fs.

Original language	English
Pages	1723-1726
Number of pages	4
DOIs	https://doi.org/10.3208/jgssp.JPN-034
Publication status	Published - 2015
Event	15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 - Fukuoka, Kyushu, Japan Duration: Nov 9 2015 → Nov 13 2015

Other

Other	15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015
Country	Japan
City	Fukuoka, Kyushu
Period	11/9/15 → 11/13/15

Keywords

Experimental design
Sensitivity analysis
Slope stability

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Soil Science

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Cite this

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title = "Sensitivity analysis in stability evaluation of earthen embankments",

abstract = "This study has investigated sensitivities of input parameters in stability analysis of embankments to safety factor Fs based on experimental deign. In addition to the geotechnical parameters, parameters about geometry such as height, width, and slope gradient of embankments were also considered in the analysis. This study applied regression analysis based on orthogonal design to the sensitivity analysis. The geotechnical parameters required for the stability analysis were used in the sensitivity analysis, and the sensitivity of these parameters to Fs was investigated. The results of the sensitivity analysis showed that the parameters about geometry of embankments such as height and slope gradient are more sensitive to Fs, although the parameters about hydraulic characteristics of embankment material are less sensitive to the Fs.",

keywords = "Experimental design, Sensitivity analysis, Slope stability",

author = "Takayuki Shuku and Nishimura, {Shin Ichi}",

note = "Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 ; Conference date: 09-11-2015 Through 13-11-2015",

year = "2015",

doi = "10.3208/jgssp.JPN-034",

language = "English",

pages = "1723--1726",

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T1 - Sensitivity analysis in stability evaluation of earthen embankments

AU - Shuku, Takayuki

AU - Nishimura, Shin Ichi

PY - 2015

Y1 - 2015

N2 - This study has investigated sensitivities of input parameters in stability analysis of embankments to safety factor Fs based on experimental deign. In addition to the geotechnical parameters, parameters about geometry such as height, width, and slope gradient of embankments were also considered in the analysis. This study applied regression analysis based on orthogonal design to the sensitivity analysis. The geotechnical parameters required for the stability analysis were used in the sensitivity analysis, and the sensitivity of these parameters to Fs was investigated. The results of the sensitivity analysis showed that the parameters about geometry of embankments such as height and slope gradient are more sensitive to Fs, although the parameters about hydraulic characteristics of embankment material are less sensitive to the Fs.

AB - This study has investigated sensitivities of input parameters in stability analysis of embankments to safety factor Fs based on experimental deign. In addition to the geotechnical parameters, parameters about geometry such as height, width, and slope gradient of embankments were also considered in the analysis. This study applied regression analysis based on orthogonal design to the sensitivity analysis. The geotechnical parameters required for the stability analysis were used in the sensitivity analysis, and the sensitivity of these parameters to Fs was investigated. The results of the sensitivity analysis showed that the parameters about geometry of embankments such as height and slope gradient are more sensitive to Fs, although the parameters about hydraulic characteristics of embankment material are less sensitive to the Fs.

KW - Experimental design

KW - Sensitivity analysis

KW - Slope stability

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T2 - 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015

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