|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Floatation of Underground Structures in Liquefiable Soils
If you have a question about this talk, please contact Zelda Stuck.
Underground infrastructure has been a widespread alternative in redeveloping urban spaces to ease congestion pressure arising from land scarcity. It has often served as vital lifelines for transport, utility and storage purposes. They include subway train and highway tunnels, gas, electrical, water and sewage pipelines. However, in the event of an earthquake, the functionality of these lifelines could be put into jeopardy especially in soils susceptible to liquefaction.
Historically and recent earthquake events have proven the floatation susceptibility of underground structures. Such structures passing through liquefiable soil deposits are susceptible to floatation due to their lower unit weight as compared to the surrounding saturated soil. Centrifuge test results will be presented to describe the soil-structure interaction involved in floating tunnels and pipes in liquefied soil deposits.
The influence of the 1)mass, 2)buried depth, and 3)diameter of the structure, as well as the 4)type, 5)relative density, 6)permeability of the sand will be covered in the presentation. The soil deformation around the soil would also be illustrated with the use of PIV analysis. A simplified mechanism of the floatation will be shown and applied to predict uplift displacement of buoyant structures.
This talk is part of the Engineering Department Geotechnical Research Seminars series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsmiTalks history ICE Research Seminar Series
Other talksModels, models everywhere and not a one to want: some reflections on costing availability as an advanced service Trophoblast-microbiota interaction: a new paradigm on immune regulation during pregnancy Ebola virus evolution in the 2014 Guinea epidemic, 11 months on A vitamin B12 dependent mutualism between a microalga Lobomonas rostrata and a rhizobium – Mesorhizobium loti On the possibility of "quick solutions " to persistent problems of student' learning in mathematics 'Harnessing hypoxia signalling in cancer'