Shake Table Experiments of Bridge Foundations in Liquefied Soils: An International Collaboration

Abstract and project information last updated: 17 September 2012. Project updates are dated below.

One man stands on the side of a large blue box while two men stand atop the box.

Credit: Joey Yang

Dr. Xianzhang Ling of Harbin Institute of Technology in China (left) conducts a shake table test of soil-pile interaction with two technicians. The work is part of a project researching liquefaction and associated ground failures common in major earthquakes across Alaska.

AUTC
Project
Number
410015
Principal
Investigator
Zhaohui (Joey) Yang (UAA)
Funding
Agency

US Department of Transportation (RITA)

Alaska Department of Transportation & Public Facilities

Project
Budget
88986
Start
Date
1 August 2010
Estimated
End Date
30 September 2012

Abstract

Liquefaction and associated ground failures have been common in major earthquakes across Alaska, causing extensive damage to infrastructures. Lateral spreading is particularly damaging if a non-liquefiable crust rides on top of liquefied soil during an earthquake. The physical properties of frozen ground crust change drastically in winter; stiffness and strength increase, and permeability decreases. The impact on a bridge foundation by frozen ground crust resting on a liquefied soil layer and the loads generated during a winter earthquake are unknown. This project, an outgrowth of another AUTC project, will benefit from collaboration with Professor Xianzhang Ling, an engineer at the Harbin Institute of Technology, China. Ling is interested in liquefaction-induced geotechnical engineering problems in cold regions and is willing to share the cost of two large-scale shake table tests, which makes it feasible to integrate physical testing with our ongoing simulation project. This project aims to conduct physical experiments to gain insight into liquefaction-induced ground failures and consequences on highway bridge substructures, as well as to validate the results of computer modeling. The knowledge gained from this project will lead to improvements in seismic design of highway bridge foundations in Alaska, as well as in other northern regions with seismic activity.

Final Report

Seismic Performance and Design of Bridge Foundations in Liquefiable Ground with Frozen Crust
2 Jul 2013

Seismic Performance and Design of Bridge Foundation in Liquefiable Ground with a Frozen Crust
Zhaohui "Joey" Yang, Ph.D. Xiaoyu Zhang
309010.410015.Yang_.pdf

Related Project Activity

2 July 2013

Seismic Performance and Design of Bridge Foundations in Liquefiable Ground with Frozen Crust

by

309010.410015.Yang