CUED Publications database

Effect of soil conditions on uplift of underground structures in liquefied soil

Chian, SC and Madabhushi, SPG (2012) Effect of soil conditions on uplift of underground structures in liquefied soil. Journal of Earthquake and Tsunami, 6. ISSN 1793-4311

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Abstract

In an earthquake, underground structures located in liquefiable soil deposits are susceptible to floatation following an earthquake event due to their lower unit weight relative to the surrounding saturated soil. Such uplift response of the buoyant structure is influenced by the soil it is buried in. In the case of a liquefiable soil deposit, the soil can lose its shear strength significantly in the event of an earthquake. If the soil liquefies fully, the buoyant structure can float towards the soil surface. However, a partly liquefied soil deposit retains some of its initial shear strength and resists the uplift. This paper discusses the different soil conditions and their influence on the uplift response of buoyant structures. © 2012 World Scientific Publishing Company.

Item Type: Article
Uncontrolled Keywords: Centrifuge modeling hydraulic conductivity liquefaction successive earthquakes underground structures uplift
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:42
Last Modified: 08 Dec 2014 02:27
DOI: 10.1142/S1793431112500200