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

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

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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.


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Item Type: Report (Technical Report)
Refereed: No
Item Status: Live Archive
Additional Information: USQ publication Report TR-2003-02.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 11 Oct 2007 00:16
Last Modified: 03 Sep 2013 02:10
Uncontrolled Keywords: soil anchors; anchor shape; pullout capacity; breakout factors; horizontal anchors; sand; cohesionless soil
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
12 Built Environment and Design > 1204 Engineering Design > 120499 Engineering Design not elsewhere classified
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/168

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