Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

Abstract

The seismic damage to embankments and retaining walls caused by the Hyogoken-nambu Earthquake (1995) was reviewed, rather focusing on railway structures. Nearly eight kilometers of damaged retaining structures were divided into five structural types, such as gravity-type walls, leaning-type walls, embankments, geo-textile-reinforced earth walls, and reinforced concrete walls, and into three categories of the damage, such as collapse, tilt, and crack. It was observed that the damage to gravity-type and leaning-type walls was greater than that to embankments, geo-textile-reinforced earth walls, and reinforced concrete walk, when they are lower than five meters. But some leaning-type walls higher than seven meters remained un-collapsed. In a smaller limited section, damage analyses of stone masonry walls of gravity type were carried out including undamaged ones. The percentage of heavy damage to stone masonry walls with slopes was nearly twice larger than that without slopes. Moreover, two-dimensional dynamic non-linear finite element analyses were performed on a gravity-type wall, a leaning-type wall, and a geo-textile-reinforced earth wall. As the results, it was pointed out that the gravity-type and leaning-type walls developed slide or gap against the backfill. But the gee-textile-reinforced earth wall developed tension in the reinforced material and it prevented the wall from leaning or sliding.

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

Share

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

A Field Study and Dynamic Finite Element Analysis of Railway Retaining Structures Damaged by the Hyogoken-Nambu Earthquake (1995)

San Diego, California

The seismic damage to embankments and retaining walls caused by the Hyogoken-nambu Earthquake (1995) was reviewed, rather focusing on railway structures. Nearly eight kilometers of damaged retaining structures were divided into five structural types, such as gravity-type walls, leaning-type walls, embankments, geo-textile-reinforced earth walls, and reinforced concrete walls, and into three categories of the damage, such as collapse, tilt, and crack. It was observed that the damage to gravity-type and leaning-type walls was greater than that to embankments, geo-textile-reinforced earth walls, and reinforced concrete walk, when they are lower than five meters. But some leaning-type walls higher than seven meters remained un-collapsed. In a smaller limited section, damage analyses of stone masonry walls of gravity type were carried out including undamaged ones. The percentage of heavy damage to stone masonry walls with slopes was nearly twice larger than that without slopes. Moreover, two-dimensional dynamic non-linear finite element analyses were performed on a gravity-type wall, a leaning-type wall, and a geo-textile-reinforced earth wall. As the results, it was pointed out that the gravity-type and leaning-type walls developed slide or gap against the backfill. But the gee-textile-reinforced earth wall developed tension in the reinforced material and it prevented the wall from leaning or sliding.