Numerical Modelling of an Axially Loaded Pile in Layered Media
01 Jan 2005-
TL;DR: In this article, a simple interface finite element based on the principle of linear elasticity is used to model shear stress transfer at the pile-soil interface, where the pile material (concrete) and the surrounding soil materials are considered as linear elastic materials.
Abstract: A simple interface finite element based on the principle of linear elasticity is used to model shear stress transfer at pile-soil interface. The pile material (concrete) and the surrounding soil materials are considered as linear elastic materials. The shear stress distribution profile at the interface and the axial load variation within the pile along the pile length are determined numerically for a pile embedded in a layered medium with a weak layer of varying thickness sandwiched between competent layers at the top and bottom of the pile. Numerical predictions are obtained for a range of values for the constitutive parameter used in the interface elements to represent the interface resistance. A theoretical approach is proposed to evaluate the value for the constitutive parameter used in the interface elements to represent the interface adhesion and friction considering various factors such as soil disturbance due to installation of piles. The above study is continued with the theoretical based value for the constitutive parameter used in the interface elements to represent the interface adhesion and friction.
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Book•
01 May 1990
TL;DR: In this paper, the authors present a consistent theoretical approach to the prediction of pile deformation and load capacity, and present parametric solutions for a wide range of cases, demonstrating how such solutions can be used for design purposes, and review the applicability of these approaches to practical problems.
Abstract: This book deals with methods of analysis that may be useful in design of pile foundations. The aims are to: 1) present a consistent theoretical approach to the prediction of pile deformation and load capacity, 2) present parametric solutions for a wide range of cases, 3) demonstrate how such solutions can be used for design purposes, and 4) review the applicability of these approaches to practical problems. (TRRL)
1,415 citations
TL;DR: In this article, an approximate closed-form solution has been obtained to the problem of a vertically loaded pile in a linear elastic soil by uncoupling the load-transfer for the pile into separate shaft and base components.
Abstract: An approximate closed-form solution has been obtained to the problem of a vertically loaded pile in a linear elastic soil. This solution has been derived by uncoupling the load-transfer for the pile into separate shaft and base components. Throughout the development of the analysis, well-proven numerical techniques have been used to verify that the assumptions made are reasonable. The final form of the solution gives the load-settlement ratio of the pile in terms of the pile geometry and stiffness and soil stiffness. The analysis has been used to back-analyze pile tests, enabling immediate estimates of the soil stiffness profile to be made from the measured load-settlement curve of the pile. The application of the method to pile design is demonstrated—design curves being sketched for piles of different geometries in two typical soft clay deposits.
677 citations
Book•
01 Jan 1979TL;DR: In this article, the Mecanique des sols Reference Record was created on 2004-09-07, modified on 2016-08-08, and used for Elasticite.
Abstract: Keywords: Elasticite ; Semelle ; Fondation ; Mecanique des sols Reference Record created on 2004-09-07, modified on 2016-08-08
498 citations
Book•
01 Jan 1963
TL;DR: In this paper, the authors provide a manual of foundation design and construction methods for the practising engineer, while analytical considerations play a subordinate role and sufficient soil mechanics is included to assist the student in relating and extending his knowledge to embrace the practical considerations involved in foundation selection, design, and construction.
Abstract: The purpose of this book is to provide a manual of foundation design and construction methods for the practising engineer. Synthetic and descriptive elements predominate the book while analytical considerations play a subordinate role. Sufficient soil mechanics is included to assist the student in relating and extending his knowledge to embrace the practical considerations involved in foundation selection, design and construction. The introductory chapter deals in general with site investigation and in particular with methods of drilling sampling and in situ testing of soils. Chapter two is on the general principles of foundation design. The chapter on design in relation to ground movements due to a variety of causes such as mining subsidence, machine vibration, frost heave and ground shrinkage should provide a useful introduction for those who have to deal with these problems. About 400 pages are devoted to the design aspects of the construction of spread, box and piled foundations.
423 citations