Experimental study of footings on reinforced earth slopes

Mittal, Satyendra; Shah, Mohammad Yousuf; Verma, Naveen

doi:10.3328/ijge.2009.03.02.251-260

Cited by 31 publications

(13 citation statements)

References 4 publications

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“…An understanding of the behavior of reinforced slopes loaded with surface footings is of practical importance to geotechnical engineers. Although several works on reinforced flat grounds exist (Fragaszy, lawton 1984;Milligan et al 1986;Mittal et al 2009), investigations of footings on reinforced slopes are rather limited (Selvadurai, Gnanendran 1989;Manjunath, dewaikar 1994;huang et al 1994;lee, Manjunath 2000;Jahanandish, Keshavarz 2005;El Sawwaf 2005).…”

Section: Introductionmentioning

confidence: 97%

Behavior of Strip Footing on Reinforced Sand Slope

Altalhe

Taha

Abdrabbo

2015

Journal of Civil Engineering and Management

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this study evaluated the effects of single, double, and triple reinforcing layers on the bearing capacity ratio (BCR) of strip footing on a sand slope system. Seventy-two laboratory-loading tests were conducted on a stripfooting model on a reinforced sand slope. Moreover, this study illustrated the effects of the different parameters of two reinforcing layers on the bearing capacity of a double-reinforced sand slope. the BCR increased from 1.06 to 3.00 for single-reinforced slope soils, 1.09 to 7.73 for double-reinforced slope soils, and up to 8.00 for three-layered reinforced systems. For double-reinforced soil slopes, the most effective spacing between the two reinforcing layers is 0.3 B.

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Section: Introductionmentioning

confidence: 97%

Behavior of Strip Footing on Reinforced Sand Slope

Altalhe

Taha

Abdrabbo

2015

Journal of Civil Engineering and Management

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“…Although several studies have been reported on the behaviour of footing constructed on stabilized sand slopes (Selvadurai and Gnanendran 1989, Huang et al 1994, Lee and Manjunath 2000, Yoo 2001, EI Sawwaf 2007, Alamshahi and Hataf 2009, Mittal et al 2009, but limited studies are available in the literature on load-carrying capacity behaviour of footing resting on reinforced fly ash/coal or pond ash slopes (Choudhary and Verma 2001, Gill et al 2011, 2012. The load-bearing capacity determination technique is an important part for a safe and economical design of footings on reinforced slopes.…”

Section: Introductionmentioning

confidence: 98%

Large Model Footing Load Test on Multi-Layer Reinforced Coal Ash Slope

Gill¹,

Choudhary

Jha

et al. 2013

Geo-Congress 2013

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Use of Coal ash as structural fills to support footings in low-lying areas can be a cost-effective solution to ash disposal problems. In some applications, especially when footings are constructed near the crest of the ash fill slope, this ash disposal solution may not meet the foundation requirements due to poor load-bearing capacity. Inclusion of horizontal geosynthetic reinforcements within the fill may be one of the most viable solutions in improving the loadbearing capacity of coal ash slope. Most information available in the literature for reinforced soil slope is based on small-scale laboratory model tests but field tests on prototype foundations give more realistic results. In view of the difficulties in accurately modeling full-scale behavior with small-scale laboratory models, practitioner generally does not adopt this result in the field. Therefore in the present investigation, large-scale model footing tests on reinforced coal ash slope were conducted in the laboratory. Prototype geogrid was used as reinforcement. The variables were number of reinforcement and edge distance of footing from the slope crest. The aim of this investigation was to find out the efficacy of multilayer reinforcements in improving the load-bearing capacity of coal ash slope. The results were found to be encouraging and may have practical applications.

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“…To design a footing on a reinforced sloped fill requires a thorough understanding of both the bearing capacity behaviour of the footing and mechanical behaviour of the reinforced slope. Limited studies on bearing capacity behaviour of strip footings on a reinforced slope have been reported in the literature [1][2][3][4][5][6][7]. For the first time, Shukla et al [8] presented a comprehensive overview of geosynthetic-reinforced slopes, including suitability of geosynthetics, modes of failure, methods of slope stability analysis and design, model studies, and typical slope stabilization methods and some specific recommendations.…”

Section: Introduction mentioning

confidence: 99%

Load-Bearing Capacity of the Footing Resting on a Reinforced Fly Ash Slope

Gill¹,

Choudhary²,

Jha³

et al. 2012

JCEA

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In several parts of the world, disposal of waste materials such as fly ash is a great problem. Application of waste materials as structural fills in foundations is one of the best solutions to disposal problems, because wastes can be used in large volumes in such applications. There may be difficulty due to poor load-bearing capacity of fly ash, especially when footing rests on the top of the fly ash fill slope. Inclusion of polymeric reinforcements as horizontal sheets within the fill may be one of the most viable solutions to improving the load-bearing capacity of reinforced fly ash slope, and it is particularly important for the situations where foundations need to be located either on the top of a slope or on slope itself. The present work is aimed at investigating the efficacy of a single layer of reinforcement in improving the load-bearing capacity when it gets incorporated within the body of a model fly ash embankment slope. An increase in load bearing capacity due to the incorporation of reinforcement in the model slope was found by conducting laboratory tests. Experimental results were compared by numerical values obtained using software GEO5 and PLAXIS.

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Experimental study of footings on reinforced earth slopes

Cited by 31 publications

References 4 publications

Behavior of Strip Footing on Reinforced Sand Slope

Behavior of Strip Footing on Reinforced Sand Slope

Large Model Footing Load Test on Multi-Layer Reinforced Coal Ash Slope

Load-Bearing Capacity of the Footing Resting on a Reinforced Fly Ash Slope

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