Alternative Title

Paper No. 3.11

Location

St. Louis, Missouri

Date

11 Mar 1998, 1:30 pm - 4:00 pm

Abstract

The behavior of longitudinal strain of buried pipes subjected to ground spread was investigated by scale model tests using a large centrifuge test facility. The longitudinal strain of buried pipes subjected to longitudinal ground spread is found to be generated by the energy of movement but not the displacement of the spreading soil. First, the remarkable strain appears at the initial transient phase of the spread, reaches its maximum and finally decays during the time the displacement of the spread proceeds. Next, it can be indicated that the induced pipe strains may have linear relationships with the square of velocities of the spread. When the roughness of the pipe is higher the maximum strain becomes larger and the duration time of large strain phase seems to become longer.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

4th Conference of the International Conference on Case Histories in Geotechnical Engineering

Publisher

University of Missouri--Rolla

Document Version

Final Version

Rights

© 1998 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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On the Behavior of Longitudinal Strain of a Buried Pipe Subjected to Ground Spread Caused by Liquefaction Observed in Centrifuge Model Tests

St. Louis, Missouri

The behavior of longitudinal strain of buried pipes subjected to ground spread was investigated by scale model tests using a large centrifuge test facility. The longitudinal strain of buried pipes subjected to longitudinal ground spread is found to be generated by the energy of movement but not the displacement of the spreading soil. First, the remarkable strain appears at the initial transient phase of the spread, reaches its maximum and finally decays during the time the displacement of the spread proceeds. Next, it can be indicated that the induced pipe strains may have linear relationships with the square of velocities of the spread. When the roughness of the pipe is higher the maximum strain becomes larger and the duration time of large strain phase seems to become longer.