Location

St. Louis, Missouri

Session Start Date

3-11-1991

Session End Date

3-15-1991

Abstract

The paper considers how, for the limit analysis approach to the seismic design of earth retaining structures, both the magnitude of soil force and the center of pressure vary with the type of displacement of the structure in translation or rotation. Two approaches are used. The first assumes that for a rotating wall the apparent internal friction angle of the backfill will vary for purely geometrical reasons. The second considers the effect of the peaked form of the stress-strain curve for a dense cohensionless soil. Both approaches show that, compared with a wall rotating about its base, the center of pressure will rise for translational displacement and even more for rotation about the top. The paper gives figures showing the magnitudes of the shifts in center of pressure, and discusses the interrelationship between the two approaches.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Second Conference

Publisher

University of Missouri--Rolla

Publication Date

3-11-1991

Document Version

Final Version

Rights

© 1991 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 11th, 12:00 AM Mar 15th, 12:00 AM

Comparison of Limit-State Seismic Earth Pressure Theories

St. Louis, Missouri

The paper considers how, for the limit analysis approach to the seismic design of earth retaining structures, both the magnitude of soil force and the center of pressure vary with the type of displacement of the structure in translation or rotation. Two approaches are used. The first assumes that for a rotating wall the apparent internal friction angle of the backfill will vary for purely geometrical reasons. The second considers the effect of the peaked form of the stress-strain curve for a dense cohensionless soil. Both approaches show that, compared with a wall rotating about its base, the center of pressure will rise for translational displacement and even more for rotation about the top. The paper gives figures showing the magnitudes of the shifts in center of pressure, and discusses the interrelationship between the two approaches.