Journal article
Effect of footing shape on penetration in sand overlying clay
P Hu, SA Stanier, D Wang, MJ Cassidy
International Journal of Physical Modelling in Geotechnics | ICE PUBLISHING | Published : 2016
Abstract
This paper reports on a series of centrifuge model tests investigating the effect of shape on the penetration resistance of spudcan and conical footings on sand overlying clay. The effect of footing shape and geometry on single-layer soil has been studied intensely. However, there is still limited understanding for conical footings on sand over clay. In the present study, digital images were captured during penetration of various shapes of half-footing held against a transparent window of a strongbox. The images were then analysed using particle image velocimetry techniques. Experimental evidence has shown that, irrespective of the conical angle of the underside within the range of 7-21°, wh..
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Awarded by Lloyd's Register Foundation
Funding Acknowledgements
This work forms part of the activities of the Centre for Offshore Foundation Systems (COFS), which is supported by the Lloyd's Register Foundation as a Centre of Excellence and now forms one of the primary nodes of the Australian Research Council (ARC) Centre of Excellence for Geotechnical Science and Engineering. Lloyd's Register Foundation invests in science, engineering and technology for public benefit, worldwide. This project has received additional support from the Australia-China Natural Gas Technological Partnership Fund and the ARC Discovery program (DP1096764). The authors are grateful for this support and also to drum centrifuge technicians Mr Bart Thompson and Mr Gregory Outridge for their assistance during the experimental work.