CUED Publications database

Large scale testing facilities – Use of high gravity centrifuge tests to investigate soil liquefaction phenomena

Madabhushi, GSP (2018) Large scale testing facilities – Use of high gravity centrifuge tests to investigate soil liquefaction phenomena. In: Geotechnical, Geological and Earthquake Engineering. UNSPECIFIED, pp. 359-386.

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Abstract

Soil liquefaction following earthquake events causes severe damage to Civil Engineering Infrastructure as witnessed in many of the recent earthquake events. High gravity centrifuge tests are able to simulate earthquake induced liquefaction in saturated soils and allow us to study the physics behind liquefaction phenomena and the behaviour of structures that are located on such sites. In this paper, the use of large scale testing facilities in studying the problems in geotechnical earthquake engineering will be highlighted. Soil liquefaction problems are used as a vehicle to illustrate the use of these large scale testing facilities. Some of the recent investigations that were carried out at University of Cambridge will be presented. These include the novel testing that was carried out which involved creation of triaxial chambers within centrifuge models to delineate drainage effects on liquefiable soils. Direct comparisons are made between free-field soil and the soil enclosed within the triaxial chamber. Similarly the reduction in settlement of foundations on liquefiable soils due to air injection a priori to earthquake loading will be presented. The differences in the failure mechanisms of shallow foundations caused by the injected air are presented.

Item Type: Book Section
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 05 Dec 2020 00:15
Last Modified: 02 Sep 2021 05:52
DOI: 10.1007/978-3-319-75741-4_16