Journal ArticleDOI
The ultimate pullout capacity of anchors in frictional soils
R. S. Merifield,Scott W. Sloan +1 more
TLDR
In this article, the authors present the results of a rigorous numerical study to estimate the ultimate pullout load for vertical and horizontal plate anchors in frictional soils, which is based on finite element formulations of the upper and lower bound theorems of limit analysis.Abstract:
During the last 30 years various researchers have proposed approximate techniques to estimate the uplift capacity of soil anchors. As the majority of past research has been experimentally based, much current design practice is based on empiricism. Somewhat surprisingly, very few numerical analyses have been performed to determine the ultimate pullout loads of anchors. This paper presents the results of a rigorous numerical study to estimate the ultimate pullout load for vertical and horizontal plate anchors in frictional soils. Rigorous bounds have been obtained using two numerical procedures that are based on finite element formulations of the upper and lower bound theorems of limit analysis. For comparison purposes, numerical estimates of the break-out factor have also been obtained using the more conventional displacement finite element method. Results are presented in the familiar form of break-out factors based on various soil strength profiles and geometries and are compared with existing numerical ...read more
Citations
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Journal ArticleDOI
Geotechnical stability analysis
TL;DR: In this paper, the authors describe recent advances in stability analysis that combine the limit theorems of classical plasticity with finite elements to give rigorous upper and lower bounds on the failure load.
Journal ArticleDOI
The uplift resistance of pipes and plate anchors buried in sand.
TL;DR: In this paper, a limit equilibrium solution for the uplift resistance of pipes and plate anchors buried in sand is proposed, and validated using a database of 115 model tests on pipes and strip anchors assembled from the published literature.
Journal ArticleDOI
Vertical uplift capacity of horizontal anchors using upper bound limit analysis and finite elements
TL;DR: In this paper, the vertical uplift capacity of strip anchors embedded horizontally at shallow depths in sand is examined by using an upper bound limit analysis in conjunction with finite elements and linear progr
Journal ArticleDOI
Associated computational plasticity schemes for nonassociated frictional materials
TL;DR: A new methodology for computational plasticity of nonassociated frictional materials is presented, inspired by the micromechanical origins of friction and results in a set of governing equations similar to those of standard associated plasticity.
Journal ArticleDOI
Investigating pipeline–soil interaction under axial–lateral relative movements in sand
TL;DR: In this article, an experimental and numerical study on axial-lateral interaction of pipes with dense sand is presented, with a series of centrifuge tests conducted with a rigid pipeline.
References
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Journal ArticleDOI
Extended limit design theorems for continuous media
TL;DR: In this paper, the safe loads for a Prandtl-Reuss material subject to surface tractions or displacements which increase in ratio are extended to any perfectly plastic material and any history of loading.
Journal ArticleDOI
Lower bound limit analysis using finite elements and linear programming
TL;DR: In this article, a technique for computing lower bound limit loads in soil mechanics under conditions of plane strain is described, where a perfectly plastic soil model is assumed, which may be either purely cohesive or cohesive-frictional, together with an associated flow rule.
Journal ArticleDOI
The Ultimate Uplift Capacity of Foundations
G G Meyerhof,J I Adams +1 more
TL;DR: In this article, the ultimate uplift capacity of foundations with special reference to transmission tower footings is evaluated and a number of model uplift tests made by the authors and by others are studied and evaluated.
Journal ArticleDOI
Upper bound limit analysis using discontinuous velocity fields
Scott W. Sloan,P.W. Kleeman +1 more
TL;DR: In this article, a method for computing rigorous upper bounds under plane strain conditions is described, based on a linear three-noded triangular element, which has six unknown nodal velocities and a fixed number of unknown multiplier rates, and uses the kinematic theorem to define a kinematically admissible velocity field as the solution of a linear programming problem.
Journal ArticleDOI
The behaviour of anchor plates in sand
R. K. Rowe,E. H. Davis +1 more
TL;DR: In this paper, the authors describe a theoretical investigation into the behavior of anchor plates in sand, considering the effects of anchor embedment, friction angle, dilatancy, initial stress and initial stress on the anchor.