scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Behaviour of sand confined with single and multiple geocells

01 Jun 1999-Geotextiles and Geomembranes (Elsevier)-Vol. 17, Iss: 3, pp 171-184
TL;DR: In this article, a large number of triaxial compression tests were performed on granular soil encased in single and multiple geocells to investigate the effect of the stiffness of the geocell on the overall performance of geocell-soil composite.
About: This article is published in Geotextiles and Geomembranes.The article was published on 1999-06-01. It has received 212 citations till now. The article focuses on the topics: Geosynthetics.
Citations
More filters
Journal ArticleDOI
TL;DR: In this article, the authors present the results from laboratory-model tests on a strip footing supported by a sand bed reinforced with a geocell mattress and show that failure was not observed even at a settlement equal to 50% of the footing width and a load as high as 8 times the ultimate bearing capacity of the unreinforced sand.

280 citations


Cites background from "Behaviour of sand confined with sin..."

  • ...Rajagopal et al. (1999) have also observed similar influence of the pocket size on the behaviour of geocell-reinforced sands....

    [...]

  • ...25 by Rea and Mitchell (1978). Krishnaswamy et al....

    [...]

Journal ArticleDOI
TL;DR: In this article, the authors investigated the qualitative and quantitative improvement in load capacity of the stone column by encasement through a comprehensive parametric study using the finite element analysis and found that the encased stone columns have much higher load carrying capacities and undergo lesser compressions and lesser lateral bulging as compared to conventional stone columns.

264 citations


Cites background from "Behaviour of sand confined with sin..."

  • ...(2) shown below (Bathurst and Karpurapu (1993); Rajagopal et al. (1999); Latha et al. (2006))....

    [...]

Journal ArticleDOI
TL;DR: In this paper, the effects of reinforcement form on strength improvement of geosynthetic-reinforced sand through triaxial compression tests were analyzed to understand the strength improvement due to reinforcement in different forms.

209 citations

Journal ArticleDOI
TL;DR: In this article, the potential benefits of providing geocell reinforced sand mattress over clay subgrade with void have been investigated through a series of laboratory scale model tests, and the results indicate that substantial improvement in performance can be obtained with the provision of geocell mattress, of adequate size, over the clay sub grade with void.

176 citations

Journal ArticleDOI
TL;DR: In this paper, the performance of a single geocell-reinforced base depended on the elastic modulus of the geocell sheet and the quality of the infill material.

175 citations

References
More filters
Journal ArticleDOI
TL;DR: In this paper, the results of a series of large-scale triaxial tests carried out on 200mm-high isolated geocell-soil composite specimens and unreinforced soil specimens were described.
Abstract: The paper describes the results of a series of large-scale triaxial tests carried out on 200-mm-high isolated geocell-soil composite specimens and unreinforced soil specimens. Two different aggregate soils were used in the test program. The reinforced specimens were tested with a height-to-diameter ratio of unity, which matches the dimensions of these systems in a typical base reinforcement application. The results illustrate the stiffening effect and strength increase imparted to the soil by the enhanced confinement effect. Comparison of reinforced and unreinforced soil specimens shows that the frictional resistance described by the peak friction angle of the soil infill is applicable to the composite structure as well. A simple elastic membrane model can be used to estimate the additional apparent cohesion present in the composite structure.

196 citations

Journal ArticleDOI
TL;DR: In the undrained triaxial compression test the rubber membranes enclosing the specimens give rise to an apparent increase in strength as mentioned in this paper, and the results of tests to determine the magnitide of this effect together with an approximate theoretical treatment.
Abstract: Synopsis In the undrained triaxial compression test the rubber membranes enclosing the specimens give rise to an apparent increase in strength. This article presents the results of tests to determine the magnitide of this effect together with an approximate theoretical treatment. Triaxial tests on remoulded London clay, employing rubber membranes of three different thicknesses, when compared with unconfined compression tests at the same moisture content show that the strength contributed by the rubber membrane is:— independent of specimen strength proportional to the stiffness of the membrane independent of cell pressure. In compression tests, with the specimen enclosed in a rubber membrane but with no lateral pressure, the effect is smaller than in the normal triaxial test. Filter paper drains, used to accelerate consolidation, add further to the compression strength and consequently a larger correction must be applied to the measured strength. A method for estimating the rubber correction from a simple ...

129 citations

Journal ArticleDOI
TL;DR: In this paper, the authors describe the unique features of a geocell foundation mattress formed from polymer grid reinforcement and show how increased bearing capacity can be developed in a soft foundation using slip line fields and taking advantage of these unique features.

104 citations

Journal ArticleDOI
TL;DR: In this paper, the results of the instrumentation monitoring and the performance of the geocell mattress foundation during the construction of the embankment were presented, which indicated that the mattress had behaved as a raft foundation to the road.

102 citations

01 Jul 1979
TL;DR: In this paper, the authors investigated the behavior of grid cell systems, with particular reference to failure mechanisms and analytical approaches to design, and found that the possible grid cell failure modes analyzed included (1) cell penetration of the subgrade, (2) cell bursting, (3) cell wall buckling, (4) bearing capacity, (5) bending, (6) durability failure, and (7) excessive rutting.
Abstract: : The full-scale field tests conducted at the U.S. Army Engineer Waterways Experiment Station (WES) have shown that interconnected shallow, thin-walled cells placed over a soft subgrade, with the cell axes oriented vertically, and filled with sand can provide significantly greater load-carrying capacity than can the compacted soil alone. Laboratory model tests have established some of the influences of (1) the ratio of loaded area radius to cell width, (2) the ratio of cell depth to cell width, (3) the subgrade thickness, and (4) repeated loading. The results of these investigations demonstrated clearly that grid cell systems may provide an economical, easily constructed, and effective expedient pavement structure. Accordingly, this study was undertaken to investigate in further detail the behavior of grid cell systems, with particular reference to failure mechanisms and analytical approaches to design. The possible grid cell failure modes analyzed included (1) cell penetration of the subgrade, (2) cell bursting, (3) cell wall buckling, (4) bearing capacity, (5) bending, (6) durability failure, and (7) excessive rutting. (Author)

39 citations