I primerily work on ground improvement using Geocell Reinforcement. Several series of tests conducted establishes that geocell is a superior form of reinforcement over the conventional ones i.e. planar geogrid and randomly oriented fibers. Owing to three dimensional confinements, it can sustain heavy contact pressures making it worthy of application in sensitive geotechnical structures such as railways, highways and airfield pavements etc. Findings from these studies provide important guidelines for design and construction of geocell reinforced foundations for civil engineering infrastructures. I also work on application of stone columns and chemical stabilisation, for performance improvement of weak soils.
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Influence of geosynthetic encasement on the performance of stone columns floating in soft clay Dash, S.K. and Bora M.C. By Canadian Geotechnical Journal 50 754-765 (2013)
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Bearing capacity of strip footings supported on geocell-reinforced sand Dash, S.K., Krishnaswamy, N.R. and Rajagopal, K. By Geotextiles and Geomembranes, Journal of International Geosynthetics Society 19 235-256 (2001)
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Improved Performance of Railway Ballast under Impact Loads using shock mats Nimbalkar S., Indraratna, B., Dash, S.K. and Christie, D. By Journal of Geotechnical and Geoenvironmental Engineering, ASCE 138 281-294 (2012)
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Lime Stabilization of Soils: Reappraisal Dash, S.K. and Hussain, M. By Journal of Materials in Civil Engineering, ASCE 22 707-714 (2012)
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Effect of geocell type on load carrying mechanism of geocell reinforced sand foundations. Dash, S.K. By International Journal of Geomechanics, ASCE 12 537-548 (2012)
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Influence of relative density of soil on performance of geocell reinforced foundations Dash, S.K. By Journal of Materials in Civil Engineering, ASCE 22 533-538 (2010)
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Bearing capacity of circular footing on geocell-sand mattress overlying clay bed with void Sireesh, S., Sitharam, T.G. and Dash, S.K. By Geotextiles and Geomembranes, Journal of International Geosynthetics Society 27 89-98 (2009)
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Behaviour of geocell reinforced sand beds under strip loading Dash, S. K., Rajagopal, K. and Krishnaswamy, N.R. By Canadian Geotechnical Journal 44 905-916 (2007)
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Performance of different geosynthetic reinforcement materials in sand foundations. Dash, S.K., Rajagopal, K. and Krishnaswamy, N.R. By Geosynthetics International, Journal of International Geosynthetics Society 11 35-42 (2004)
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Model studies on circular footing supported on geocell reinforced sand underlain by soft clay Dash, S.K., Sireesh, S. and Sitharam, T.G. By Geotextiles and Geomembranes, Journal of International Geosynthetics Society 21 197-219 (2003)
- Co-Principal Investigator
Ph. D. Students
Ajaya Kumar Samal
Area of Research: Track Engineering
Dharmendra Barman
Area of Research: Stabilisation of expansive soil
Rupam Saikia
Area of Research: Geotechnical Engineering
Saurabh Kumar
Area of Research: Reinforced Soil Structure
