TY - GEN
T1 - Sensitivity analysis of slope stability based on orthogonal designs
AU - Shuku, T.
AU - Nishimura, S.
AU - Shibata, T.
PY - 2015
Y1 - 2015
N2 - This study has investigated sensitivity of input parameters in stability analysis of earthen embankments to its factor of safety (Fs) using an experimental design approach. Computer experiments based on orthogonal designs were carried out to achieve efficient experiments, and a linear regression model was applied to analyze the results of the experiment. The Standardized Regression Coefficients (SRCs) obtained from the regression analysis was employed as indexes of the sensitivity of the input parameters to the F s. The results of the sensitivity analysis showed that the parameters about the geometry of embankments such as height and slope gradient are more sensitive to Fs, although the parameters about hydraulic characteristics of embankment materials are less sensitive to the Fs. In addition, interaction effects between input parameters were also analyzed, and its sensitivity to Fs was discussed.
AB - This study has investigated sensitivity of input parameters in stability analysis of earthen embankments to its factor of safety (Fs) using an experimental design approach. Computer experiments based on orthogonal designs were carried out to achieve efficient experiments, and a linear regression model was applied to analyze the results of the experiment. The Standardized Regression Coefficients (SRCs) obtained from the regression analysis was employed as indexes of the sensitivity of the input parameters to the F s. The results of the sensitivity analysis showed that the parameters about the geometry of embankments such as height and slope gradient are more sensitive to Fs, although the parameters about hydraulic characteristics of embankment materials are less sensitive to the Fs. In addition, interaction effects between input parameters were also analyzed, and its sensitivity to Fs was discussed.
UR - http://www.scopus.com/inward/record.url?scp=84907340234&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907340234&partnerID=8YFLogxK
U2 - 10.1201/b17435-182
DO - 10.1201/b17435-182
M3 - Conference contribution
AN - SCOPUS:84907340234
SN - 9781138001480
T3 - Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
SP - 1043
EP - 1048
BT - Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
PB - Taylor and Francis - Balkema
T2 - 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
Y2 - 22 September 2014 through 25 September 2014
ER -