Location

Arlington, Virginia

Session Start Date

8-11-2008

Session End Date

8-16-2008

Abstract

In this paper two case histories are addressed. The first case history describes the underpinning and reinforcement of huge retaining walls due to the crossing of the old Rossio railway station building (1886) by an underground gallery (for the Lisbon Metro). A careful study was performed for this station in order to avoid unacceptable damages. These walls sustain an embankment on which the railway platforms were built. The second case history deals with the stabilization works of a landslide in Portugal. The lessons arising from technical and non technical factors related with slides are analysed, and the anchored retaining walls founded on micropiles to stabilize the hills are described. The field and laboratory tests are referred, as well as the geological-geotechnical model. For the both case histories the design of the retaining walls was based in Eurocode 7. Some results of the global stability analyses as well as the stress-strain analyses are presented. The seismic design was based in Eurocode 8. The results of anchorages tests and micropiles to calibrate the design values are presented.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Sixth Conference

Publisher

Missouri University of Science and Technology

Publication Date

8-11-2008

Document Version

Final Version

Rights

© 2008 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Aug 11th, 12:00 AM Aug 16th, 12:00 AM

Lessons Learned from Two Case Histories of Retaining Structures

Arlington, Virginia

In this paper two case histories are addressed. The first case history describes the underpinning and reinforcement of huge retaining walls due to the crossing of the old Rossio railway station building (1886) by an underground gallery (for the Lisbon Metro). A careful study was performed for this station in order to avoid unacceptable damages. These walls sustain an embankment on which the railway platforms were built. The second case history deals with the stabilization works of a landslide in Portugal. The lessons arising from technical and non technical factors related with slides are analysed, and the anchored retaining walls founded on micropiles to stabilize the hills are described. The field and laboratory tests are referred, as well as the geological-geotechnical model. For the both case histories the design of the retaining walls was based in Eurocode 7. Some results of the global stability analyses as well as the stress-strain analyses are presented. The seismic design was based in Eurocode 8. The results of anchorages tests and micropiles to calibrate the design values are presented.