Session Start Date

6-1-1988

Abstract

During construction of the first one of a twin dam in the Oosterschelde basin several instabilities occurred. Design of the construction plan of the dam was based on classical methods of analysis of stability and usually applied safety criteria. Back analysis of the failures consisted of a probabilistic analysis, indicating high overall probabilities of failure, and FEM analysis, indicating areas of large plastic deformation of the subsoil, caused by the steep setup of the sandfill in 'the initial construction stage, resulting in too concentrated surcharge. Based on these results, it was decided to apply these methods of analysis from the beginning in the design of the construction plan for the second dam. This plan has successfully been carried out.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Second Conference

Publisher

University of Missouri--Rolla

Publication Date

6-1-1988

Document Version

Final Version

Rights

© 1988 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Jun 1st, 12:00 AM

The Probability of Failure of an in Stages Constructed Embankment on Soft Soil

During construction of the first one of a twin dam in the Oosterschelde basin several instabilities occurred. Design of the construction plan of the dam was based on classical methods of analysis of stability and usually applied safety criteria. Back analysis of the failures consisted of a probabilistic analysis, indicating high overall probabilities of failure, and FEM analysis, indicating areas of large plastic deformation of the subsoil, caused by the steep setup of the sandfill in 'the initial construction stage, resulting in too concentrated surcharge. Based on these results, it was decided to apply these methods of analysis from the beginning in the design of the construction plan for the second dam. This plan has successfully been carried out.