Three dimensional lower bound solutions for the stability of plate anchors in sand

Technical report


Merifield, Richard S., Sloan, Scott W. and Lyamin, Andrei V.. 2003. Three dimensional lower bound solutions for the stability of plate anchors in sand. Toowoomba, Australia. University of Southern Queensland.
Title

Three dimensional lower bound solutions for the stability of plate anchors in sand

Report TypeTechnical report
AuthorsMerifield, Richard S. (Author), Sloan, Scott W. (Author) and Lyamin, Andrei V. (Author)
Institution of OriginUniversity of Southern Queensland
Number of Pages23
Year2003
PublisherUniversity of Southern Queensland
Place of PublicationToowoomba, Australia
ISBN1877078042
ISSN1446-1846
Web Address (URL)http://www.usq.edu.au/engineering/techrep/2003/tr-2003-02.pdf
Abstract

Soil anchors are commonly used as foundation systems for structures that require uplift or lateral resistance. These types of structures include transmission towers, sheet pile walls and buried pipelines. Although anchors are typically complex in shape (e.g. drag or helical anchors), many previous analyses idealise the anchor as a continuous strip under plane strain conditions. This assumption provides numerical advantages and the problem can solved in two dimensions. In contrast to recent numerical studies, this
paper applies three dimensional numerical limit analysis and axi-symetrical displacement finite element analysis to evaluate the effect of anchor shape on the pullout capacity of horizontal anchors in sand. The anchor is idealised as either square or circular in shape. Results are presented in the familiar form of breakout factors based on various anchor shapes and embedment depths, and are also compared with existing numerical and empirical solutions.

Keywordssoil anchors; anchor shape; pullout capacity; breakout factors; horizontal anchors; sand; cohesionless soil
ANZSRC Field of Research 2020400510. Structural engineering
401001. Engineering design
401706. Numerical modelling and mechanical characterisation
Public Notes

File reproduced in accordance with the copyright policy of the publisher/author.

Byline AffiliationsDepartment of Agricultural, Civil and Environmental Engineering
Faculty of Engineering and Surveying
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