Estimation of Design Parameters for Braced Excavation: Numerical Study
Publication: International Journal of Geomechanics
Volume 13, Issue 3
Abstract
This paper discusses the development of a numerical model for a braced excavation to estimate the various design parameters that significantly influence the excavation's behavior. The results of the numerical model were compared with those of a reported case study of a braced excavation in sand, and close agreement between the results was observed. The developed model is used for parametric study to show the influence of different design parameters, such as strut stiffness, wall thickness, strut arrangement and the embedded depth of the wall on strut force, maximum moment developed in the wall, maximum lateral displacement of the wall, and maximum vertical displacement of ground surface. It was found that, among all the combinations studied, a particular type of strut arrangement for a particular ratio of embedded depth and excavation depth produces the best possible result. A design guideline is also presented based on the results of this numerical study.
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Information & Authors
Information
Published In
International Journal of Geomechanics
Volume 13 • Issue 3 • June 2013
Pages: 234 - 247
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Aug 2, 2011
Accepted: Jan 12, 2012
Published online: Jan 14, 2012
Published in print: Jun 1, 2013
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