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Durability of partial saturation to counteract liquefaction

Published version
Peer-reviewed

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Type

Article

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Authors

Zeybek, A 
Madabhushi, GSP 

Abstract

Recently, artificially introducing gas/air into liquefiable soils has been presented as a method for reducing the risks from liquefaction. Although this method offers a simple and cheap solution, its use in practical applications is still very limited. This might be primarily ascribed to the concerns of practising engineers about the durability of gas/air bubbles in soils over time. This paper discusses the durability of entrapped air bubbles under various simulated field conditions that may potentially cause the dissolution, diffusion, compression and escape of air bubbles. Multiple series of 1g vertical sand column and high-g centrifuge tests were undertaken to provide insights into the problem. Air-induced partially saturated soils were prepared using an air-injection technique. The test results showed that the majority of entrapped air bubbles in soils can persist under several simulated field conditions for a sufficient period of time, indicating the long-term reliability of the mitigation accomplished.

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Keywords

dynamics, geotechnical engineering, models (physical)

Journal Title

Proceedings of the Institution of Civil Engineers - Ground Improvement

Conference Name

Journal ISSN

1755-0750
1755-0769

Volume Title

170

Publisher

ICE Publishing
Sponsorship
Ministry of Education, Turkey