Location

San Diego, California

Presentation Date

29 Mar 2001, 7:30 pm - 9:30 pm

Abstract

The failure of sand lenses during earthquake loadings has caused many damages to the ground and yet its mechanism has not been investigated extensively. In this paper the results of an analytical studies involving the mechanism of crack development of a sand lens due to liquefaction, are presented. A single loose and saturated sand lens embedded inside a stiff clay deposit, which will liquefy due to the earthquake loading, is modeled by finite element method. The principles of fracture mechanics were used and the soil behavior was considered as a non-linear elasto-plastic material. The computer package of NISA was used and the failure mechanism of the lens was analysed by this package. Finally, the crack development and the angle of developed crack from the tip of the lens to the horizontal was calculated and discussed.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Publisher

University of Missouri--Rolla

Document Version

Final Version

Rights

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

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

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 Crack Development Due to Liquefaction of Sand Lenses During Earthquake Loading

San Diego, California

The failure of sand lenses during earthquake loadings has caused many damages to the ground and yet its mechanism has not been investigated extensively. In this paper the results of an analytical studies involving the mechanism of crack development of a sand lens due to liquefaction, are presented. A single loose and saturated sand lens embedded inside a stiff clay deposit, which will liquefy due to the earthquake loading, is modeled by finite element method. The principles of fracture mechanics were used and the soil behavior was considered as a non-linear elasto-plastic material. The computer package of NISA was used and the failure mechanism of the lens was analysed by this package. Finally, the crack development and the angle of developed crack from the tip of the lens to the horizontal was calculated and discussed.