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3D Analysis of Steep Slopes Subjected to Seismic Excitation
Design of slopes and analysis of existing slopes are carried out routinely using approximations of plane strain and substitution of quasi-static load for the seismic excitation. A three-dimensional analysis of slopes is used here, based on the kinematic theorem of limit analysis. A 3D rotational mechanism with a failure surface passing through the slope toe was developed, applicable to steep slopes. A quasi-static approach is used and an example of charts for the assessment of the factor of safety for slopes with predefined width of the failure mechanism is shown. Critical acceleration is also calculated for 3D slopes, and a sliding block analysis is carried out to develop a solution for displacements of slopes subjected to seismic excitation.
3D Analysis of Steep Slopes Subjected to Seismic Excitation
Design of slopes and analysis of existing slopes are carried out routinely using approximations of plane strain and substitution of quasi-static load for the seismic excitation. A three-dimensional analysis of slopes is used here, based on the kinematic theorem of limit analysis. A 3D rotational mechanism with a failure surface passing through the slope toe was developed, applicable to steep slopes. A quasi-static approach is used and an example of charts for the assessment of the factor of safety for slopes with predefined width of the failure mechanism is shown. Critical acceleration is also calculated for 3D slopes, and a sliding block analysis is carried out to develop a solution for displacements of slopes subjected to seismic excitation.
3D Analysis of Steep Slopes Subjected to Seismic Excitation
Nadukuru, S. S. (author) / Martel, T. (author) / Michalowski, R. L. (author)
Geo-Frontiers Congress 2011 ; 2011 ; Dallas, Texas, United States
Geo-Frontiers 2011 ; 3546-3555
2011-03-11
Conference paper
Electronic Resource
English
3D Analysis of Steep Slopes Subjected to Seismic Excitation
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