Design and construction of geocell foundation to support the embankment on settled red mud

Sitharam, T. G.; Hegde, A.

doi:10.1016/j.geotexmem.2013.08.005

Cited by 108 publications

(21 citation statements)

References 49 publications

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“…The interconnected cells in the geocell form a slab that behaves like a large pad that spreads the applied load over a wider area. Many researchers in the past have highlighted the advantages of using the geocells in geotechnical engineering applications (Moghaddas Tafreshi and Dawson, 2010;Pokharel et al, 2010;Lambert et al, 2011;Yang et al, 2012;Thakur et al, 2012;Sitharam and Hegde, 2013;Mehdipour et al, 2013;Hegde and Sitharam, 2014a, b;Moghaddas Tafreshi et al, 2014;Hegde et al, 2014;Indraratna et al, 2014). Tavakoli et al (2013) highlighted the beneficial use of geocells in protecting the buried pipelines in their studies.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Hegde

Sitharam

2015

Geotextiles and Geomembranes

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Hegde

Sitharam

2015

Geotextiles and Geomembranes

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“…Thus, a non-dimensional term called the improvement factor (Dash et al 2003;Ornek et al 2012a;Sitharam and Hegde 2013) is used to compare the load carrying capacity between the reinforced and unreinforced soil systems. No distinct failure point is observed in any of the load-settlement curves.…”

Section: Resultsmentioning

confidence: 99%

“…Various numerical and analytical studies have been carried out by several researchers to evaluate the bearing capacity and settlement characteristics of geosynthetic-reinforced sand layers overlying soft soil under strip loading (Giroud and Noiray 1981;Love et al 1987;Madhav and Poorooshasb 1988;Bourdeau 1989;Burd and Houlsby 1989;Houlsby et al 1989;Milligan et al 1989;Poorooshasb 1989;Ghosh and Madhav 1994;Chandra 1994, 1995;Yin 1997;Lee et al 1999;Deb et al 2005Deb et al , 2007aDeb et al , 2007bSitharam and Hegde 2013;Shivashankar and Jayaraj 2014). Natural river sand is the most common granular material used for this purpose in India.…”

Section: Introductionmentioning

confidence: 99%

Effects of aspect ratio of footings on bearing capacity for geogrid-reinforced sand over soft soil

Roy

Deb

2017

Geosynthetics International

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Model plate load tests of rigid rectangular footings of different aspect ratios resting on sand overlying soft soil with or without a layer of geogrid at the interface are presented. The width (B) and length (L) of the footings are chosen so that the L/B ratio (aspect ratio) is varied as 1.0, 1.5, and 2.0. The study aims to investigate the effects of the aspect ratio of the rectangular footings and the thickness of the sand layer on bearing capacity, settlement characteristics, load-spread angle, and sizes of geogrid layer (at optimum sand thickness). The strain distribution along the reinforcement is also studied. Based on the test results, an analytical method is proposed to calculate the load carrying capacity of rectangular footings resting on reinforced or unreinforced sand over soft soil. It is found that the optimum sand thickness to footing width ratio is not dependent on the aspect ratio of the rectangular footings. However, the optimum sizes of geogrid reinforcement increase with an increase in aspect ratio of the footings. Also, the load-spread angle increases with an increase in aspect ratio. It is also observed that the load-spread angle in the lengthways direction of a footing is smaller than that in the widthways direction, and it is more pronounced in the case of reinforced soil compared to unreinforced soil.

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“…Research by Sitharam and Hedge [18,34] describes a case history of the construction of a 3 m embankment of a NPA geocell-reinforced foundation over soft clay mud in Orissa, India, and model plate load tests and numerical simulations of the NPA geocell reinforced soft clay beds. These results showed an increase in load carrying capacity by fivefold.…”

Section: Literature Review Of Npa Geocellsmentioning

confidence: 99%

High-Modulus Geocells for Sustainable Highway Infrastructure

Kief¹,

Schary²,

Pokharel³

2014

Indian Geotech J

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Technological innovation in geosynthetics such as high modulus (stiff) geocells (cellular confinement systems) can help achieve a more sustainable highway infrastructure. Research, testing, field trails, and case studies demonstrate how geocells increase pavement performance on one hand, while achieving sustainable goals on the other. Recent published research and testing of highmodulus Novel Polymeric Alloy (NPA) geocell-reinforced bases are briefly reviewed in this paper. NPA geocells improved strength and rigidity of flexible pavements as indicated by: increased modulus of structural layers, reduced stresses to the lower layers and decreased surface degradation. Field trials validate that NPA geocells improve the modulus of road base layers, even while reducing the structural thickness and utilizing on-site or recycled materials for structural infill. Sustainable roads can be built with less virgin resources and a smaller environmental footprint, while extending the pavement service life and decreasing maintenance.

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Design and construction of geocell foundation to support the embankment on settled red mud

Cited by 108 publications

References 49 publications

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Experimental and numerical studies on protection of buried pipelines and underground utilities using geocells

Effects of aspect ratio of footings on bearing capacity for geogrid-reinforced sand over soft soil

High-Modulus Geocells for Sustainable Highway Infrastructure

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