Numerical study of basal reinforced embankments supported on floating/end bearing piles considering pile–soil interaction

Bhasi, Anjana; Rajagopal, K.

doi:10.1016/j.geotexmem.2015.05.003

Cited by 64 publications

(16 citation statements)

References 20 publications

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“…By comparison, numerous studies (Liu et al 2007;Jenck et al 2009;Ariyarathne et al 2012;Zhang et al 2013;Bhasi and Rajagopal 2015) have modelled the construction and postconstruction GRCSE performance with DDCs as "wished into place" structural elements (either a plate element or linear-elastic material), with gross cross-sectional properties (i.e., uncracked material properties) and have numerically simulated embankment construction starting with the LTP construction. This approach ignores installation effects, equilibration, and the potential for columnar cracking, and as a result overestimates the lateral resistance provided by the installed columns.…”

Section: Implications On the Numerical Modelling Of Grcses Under Servmentioning

confidence: 99%

“…A review of numerous studies that have investigated the globalscale behaviour of GRCSEs (Masse et al 2004;Liu et al 2007;Jenck et al 2009;Chatte and Lauzon 2011;Ariyarathne et al 2012;Zhang et al 2013;Bhasi and Rajagopal 2015) indicates that numerical analysis techniques are by far the preferred method of analysis for assessing serviceability behaviour. The study of global-scale GRCSE mechanisms through full-scale case studies as well as laboratory-scale physical modelling and centrifuge modelling is far less common.…”

Section: Introductionmentioning

confidence: 99%

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Geosynthetic reinforced column supported embankments and the role of ground improvement installation effects

King

Bouazza

Gniel³

et al. 2018

Can. Geotech. J.

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For geosynthetic reinforced column supported embankments (GRCSE) supporting a high embankment, lateral forces associated with lateral sliding and embankment stability often govern the acceptability of a given design under serviceability conditions. Frequently, the complex soil–structure–geosynthetic interaction, the size, and the three-dimensional nature of a GRCSE necessitate the use of numerical analysis to assess embankment performance relative to serviceability criteria. However, traditional finite element method techniques used to model serviceability behaviour are limited in their ability to model the geotechnical mechanisms associated with column installation, equilibration, and group installation effects. These installation effects are examined herein based on a GRCSE field case study located in Melbourne, Australia, that has been extensively instrumented. The role that these installation effects have on the performance of the GRCSE is highlighted and the behaviour of the columns supporting the embankment is emphasized. It is shown that cracking of the unreinforced columns supporting the embankment is likely inevitable and that the reduction of lateral resistance provided by the columns should be accounted for in design. The suitability of various numerical approaches currently used in design to model the columns supporting the GRCSE, and the embankment itself, are discussed and recommendations are made.

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Section: Implications On the Numerical Modelling Of Grcses Under Servmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Geosynthetic reinforced column supported embankments and the role of ground improvement installation effects

King

Bouazza

Gniel³

et al. 2018

Can. Geotech. J.

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“…Because the shear resistance in the embankment fill is significant in the soil arching effect, the grain size distribution should be well designed to prevent erosion caused by water flow (Premkumar et al, 2016). Some scholar (Bhasi and Rajagopal, 2015) have also considered the difference between the endbearing and floating columns and studied their influence on the soil arching effect. The endbearing columns may be of various types, such as concrete piles, semi-deep soil-mixing columns, stone columns, and so on.…”

Section: Introductionmentioning

confidence: 99%

A closed-form solution for column-supported embankments with geosynthetic reinforcement

Zhao

Zhou

Geng

et al. 2019

Geotextiles and Geomembranes

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“…Researchers also showed that, pressure on foundation soil increased as fill height increased, which is contrarily behavior to British standard, BS8006. Due to this contradiction, researchers proposed a modification to British standard [5]. Lai et al demonstrated soil arching within geogrid-reinforced and unreinforced pile supported embankment by using discrete element method.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Model on Geosynthetic Reinforced Pile Supported Embankments

Onur

Balaban

2018

Anadolu University Journal of Science and Technology-a Applied Sciences and Engineering

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Reinforced pile embankments were started to be used more commonly because they allow fast construction of highways. When geosynthetics are adopted to piled fills, this kind of structures are then called as geosynthetic reinforced piled structures. When the geosynthetics are used, area of pile caps is reduced because geosynthetic transfers fill load to piles by its membrane effect. In this study, effect of multilayer reinforcement is investigated using 2D finite element method. For this purpose, settlements, pressures, excess pore water pressures and horizontal displacements are analyzed. Results showed that using two and three layers of reinforcement significantly decreases settlements on foundation soil and embankment surface. Placement of an additional layer has great effect on settlements, pressures, excess pore water pressure and horizontal displacements. It is also found out that, two layers of reinforcement is more effective when only settlements are considered.

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Numerical study of basal reinforced embankments supported on floating/end bearing piles considering pile–soil interaction

Cited by 64 publications

References 20 publications

Geosynthetic reinforced column supported embankments and the role of ground improvement installation effects

Geosynthetic reinforced column supported embankments and the role of ground improvement installation effects

A closed-form solution for column-supported embankments with geosynthetic reinforcement

A Numerical Model on Geosynthetic Reinforced Pile Supported Embankments

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