Open AccessJournal Article
An Experimental Investigation on Interference of Piled Rafts in Soft Soil
S.P. Bajad,R. B. Sahu +1 more
TLDR
In this article, the interference effect on the vertical load-deformation behavior of a number of equally spaced rafts and piled rafts, placed in the artificially consolidated soft clay was investigated.Abstract:
By using small scale model tests, the interference effect on the vertical load-deformation behavior of a number of equally spaced rafts and piled rafts, placed in the artificially consolidated soft clay was investigated. The effect of spacing (s) among foundations on the results was explored. A new experimental setup was proposed in which uniform load was applied by using steel beam of adequate flexural strength and ball bearings to transfer the vertical load equally on both the foundations. The bearing capacity decreases continuously with decrease in spacing among the foundations. The interference effect becomes further prominent with piled raft foundation. In contrast to decrease in the bearing capacity, with decrease in spacing of foundations, an increase in the foundations settlement associated with the ultimate state of shear failure was observed. The present experimental observations were compared to the results obtained by using PLAXIS. The results of this laboratory investigation will be helpful in finding the minimum spacing between the rafts and piled raft foundation for better performance. Keywords: Piled raft; Model test; soft clay; Interference effect; spacing; PLAXISread more
Citations
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Evaluation of Foundation Settlement under Various Added Loads in Different Locations of Iraq Using Finite Element
TL;DR: In this article, field and laboratory tests were conducted for twenty three sites in three different regions in Iraq (Mosul, Baghdad, and Basrah) and the results adopted for two sites from each region depended on the maximum and minimum bearing capacity values.
References
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Book
Foundation analysis and design
TL;DR: In this paper, Fondation de soutenagement et al. presented a reference record for Dimensionnement Reference Record created on 2004-09-07, modified on 2016-08-08.
Book
Pile Foundation Analysis and Design
Harry G. Poulos,E.H. Davis +1 more
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.
Journal ArticleDOI
Interference Between Foundations, with Special Reference to Surface Footings in Sand
TL;DR: In this paper, a theoretical solution to the problem of bearing capacity changes in the case of two foundations at or near the surface of a sand is described, and the results compared with the theory.
Journal ArticleDOI
Piled raft foundations on stiff clays—a contribution to design philosophy
TL;DR: In this article, the authors present the results of model tests on unpiled rafts, free-standing piles and piled rafts of various sizes, which are used as a framework to which field measurements carried out by the Building Research Establishment and settlement observations are used.
Journal ArticleDOI
The analysis of flexible raft-pile systems
S. J. Hain,I. K. Lee +1 more
TL;DR: In this paper, an analysis was developed to predict the behavior of a raft-pile foundation system, where a flexible elastic plate supported on a group of compressible friction piles is represented as an elastic homoeneous or non-homogeneous material.