Journal
COMPUTERS AND GEOTECHNICS
Volume 80, Issue -, Pages 138-151Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2016.07.001
Keywords
Deep excavation; Loose to medium dense sand; Wall deflection; Three-dimensional effect; Plane strain ratio (PSR)
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Funding
- Ministry of Science and Technology, Taiwan [100-2622-E-151-021-CC3]
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This paper presents a study that evaluates the three-dimensional effects of a deep excavation on wall displacements in loose to medium dense sands. A finite element (FE) analysis is then conducted to verify the performance of 3D FE models in predicting wall displacements and results indicate that the use of the Mohr-Coulomb model with the soil modulus obtained from in-situ dilatometers for loose to medium dense sands yields reasonable predictions of the excavation-induced wall displacements. Based on the parametric study, the plane strain ratio (PSR), was determined for excavations in loose to medium dense sand. (C) 2016 Elsevier Ltd. All rights reserved.
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