Location

Arlington, Virginia

Session Start Date

8-11-2008

Session End Date

8-16-2008

Abstract

This paper presents a case history of trench collapse occurred during trench excavation in soft ground. The development of settlement and horizontal displacement, the generation of pore water pressure during the construction and mechanism of trench collapse are investigated by means of centrifuge modeling and numerical analysis. It is found that the combination of centrifuge modeling and in-flight sand hopper can provide dramatic result for simulation of the trench collapse. Based on the results, it is verified that the occurrence of trench collapse is mainly caused by the excessive surcharge load of excavated material stockpiled on top of the trench.

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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Case History and Numerical Analysis of Trench Collapse in Japan

Arlington, Virginia

This paper presents a case history of trench collapse occurred during trench excavation in soft ground. The development of settlement and horizontal displacement, the generation of pore water pressure during the construction and mechanism of trench collapse are investigated by means of centrifuge modeling and numerical analysis. It is found that the combination of centrifuge modeling and in-flight sand hopper can provide dramatic result for simulation of the trench collapse. Based on the results, it is verified that the occurrence of trench collapse is mainly caused by the excessive surcharge load of excavated material stockpiled on top of the trench.