Location
St. Louis, Missouri
Presentation Date
12 Mar 1991, 10:30 am - 12:00 pm
Abstract
A two dimensional (2D) dynamic wall-soil computational model is proposed. The model accounts for wall and soil resonance, nonlinear wall-backfill soil interaction, simultaneous wall base sliding and rotation, nonlinear soil properties and possible pore pressure buildup. A bending beam with a base yielding rotational spring and a base translational slide element represents the wall. A 2D shear beam represents the soil system. The wall and supporting soil interaction through a Winkler type nonlinear no-tension spring system. An elasto-plast1c path-dependent hysteretic model accounts for nonl1near so1l behavior and possible pore pressure buildup. The seismic response of a 15m high cantilever wall is studied in detail. Wall translational and rotational failure mechanisms are discussed. The computed results indicate the importance of including seismically induced moments in dynamic wall stability evaluation. It is also found that retaining walls with loose saturated backfill soils may accumulate excess1ve permanent displacements well beyond the strong shaking phase of an earthquake.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1991 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Alampalli, Sreenivas and Elgamal, Ahmed-W., "Retaining Walls; Computation of Seismically Induced Deformations" (1991). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 7.
https://scholarsmine.mst.edu/icrageesd/02icrageesd/session04/7
Included in
Retaining Walls; Computation of Seismically Induced Deformations
St. Louis, Missouri
A two dimensional (2D) dynamic wall-soil computational model is proposed. The model accounts for wall and soil resonance, nonlinear wall-backfill soil interaction, simultaneous wall base sliding and rotation, nonlinear soil properties and possible pore pressure buildup. A bending beam with a base yielding rotational spring and a base translational slide element represents the wall. A 2D shear beam represents the soil system. The wall and supporting soil interaction through a Winkler type nonlinear no-tension spring system. An elasto-plast1c path-dependent hysteretic model accounts for nonl1near so1l behavior and possible pore pressure buildup. The seismic response of a 15m high cantilever wall is studied in detail. Wall translational and rotational failure mechanisms are discussed. The computed results indicate the importance of including seismically induced moments in dynamic wall stability evaluation. It is also found that retaining walls with loose saturated backfill soils may accumulate excess1ve permanent displacements well beyond the strong shaking phase of an earthquake.
