|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Pile foundations in laterally spreading soil: mechanisms of response and guidance for design
If you have a question about this talk, please contact Anama Lowday.
Pile foundations are typically used to support engineering structures where the surface soil is of poor quality. Often this soil is highly liquefiable when subject to seismic shaking. Lateral spreading, a phenomenon associated with earthquake-induced soil liquefaction, can impose particularly large lateral loads on pile foundations through the gross horizontal movement of liquefied soil. The interaction between the soil, piles, and superstructure, both during and after an earthquake, is inherently complex and many fundamental aspects of this interaction are not yet fully understood. This seminar explores the relationships between several fundamental design parameters (including pile spacing, and pile tip/cap fixity), the mechanism of soil-pile interaction, and the resulting foundation performance.
Centrifuge testing of idealised pile groups is the primary method by which the problem has been explored. The experimental programme was underway at the time of the recent major earthquakes in Christchurch, affording a unique opportunity to incorporate observations from the field into the design of the centrifuge models. This seminar compares the mechanisms of pile-laterally spreading soil interaction observed in the field and the centrifuge tests, considers the validity of common assumptions made in the design of physical models for piles in laterally spreading soil and indicates some potential consequences for seismic foundation design.
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 listsStories Behind the Stitches: Schoolgirl Samplers of the 18th and 19th Centuries Martin Centre Research Seminar Series – 44th Annual Series of Lunchtime Lectures Talks related to atmosphere and ocean dynamics and climate science
Other talksBootstrapped Inference for Degree Distributions in Large Sparse Networks TBA Annual General Meeting Dr Frank Waldron-Lynch: Immune Cell Responses in Participants with Type 1 Diabetes after doses of Interleukin-2 in adaptive-response clinical trials Variational autoencoders with latent graphical models A life-course investigation of influences on physical inactivity stability and change: findings from the 1958 British Birth Cohort