Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

Abstract

This paper reports failure of retaining structures related to the 1999 Chi-Chi earthquake. On September 21 of 1999, an earthquake with a magnitude of 7.3 on the Richter scale struck Taiwan. At the site near Tou-Sheh, overturning failure was observed on a 2.5 m-high gravity wall located near the epicenter. At the site near the Temple of Ten-thousand Buddha, a masonry wall constructed with cobble was damaged. Upper part of wall shifted outward about 0.2 m with respect to its lower part. At the site of Cinema-Culture Town, a gravity wall built on top of the Che-Lung-Pu fault was severely damaged. The heel of the wall was uplifted by the fault rupture. At the parking lot of the Lalu Resort, the retaining wall constructed on a slope moved down the slope during the earthquake. A circular sliding surface can be observed in the collapsed backfill. At the entrance of National Chi-Nan University, a geogrid-reinforced wall was severely damaged during the earthquake. Reinforcing strips were pulled out under the seismic load and fill materials fell out.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

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

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-26-2001

Document Version

Final Version

Rights

© 2001 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 26th, 12:00 AM Mar 31st, 12:00 AM

The Behavior of Retaining Walls Under 1999 Chi-Chi Earthquake

San Diego, California

This paper reports failure of retaining structures related to the 1999 Chi-Chi earthquake. On September 21 of 1999, an earthquake with a magnitude of 7.3 on the Richter scale struck Taiwan. At the site near Tou-Sheh, overturning failure was observed on a 2.5 m-high gravity wall located near the epicenter. At the site near the Temple of Ten-thousand Buddha, a masonry wall constructed with cobble was damaged. Upper part of wall shifted outward about 0.2 m with respect to its lower part. At the site of Cinema-Culture Town, a gravity wall built on top of the Che-Lung-Pu fault was severely damaged. The heel of the wall was uplifted by the fault rupture. At the parking lot of the Lalu Resort, the retaining wall constructed on a slope moved down the slope during the earthquake. A circular sliding surface can be observed in the collapsed backfill. At the entrance of National Chi-Nan University, a geogrid-reinforced wall was severely damaged during the earthquake. Reinforcing strips were pulled out under the seismic load and fill materials fell out.