Publications

  • Amarasinghe MP, De Silva LIN, Gallage C (2018), The effect of lateral confinement on the settlement characteristics of shallow foundations on sand, Int. J. GEOMATE 15 (51), 258-265.
  • Amarasinghe MP and De Silva LIN (2017), Experimental study on the effect of presence of deep embedded retaining walls on the settlement of shallow foundations, IESL Annual transactions, pp. 11 - 16.
  • Chiaro G, Koseki J, De Silva LIN, Kiyota T (2016), Modelling the monotonic undrained torsional shear response of loose and dense Toyoura sand, Proceedings of the 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Japanese Geotechnical Society Special Publication, Fukuoka, Japan, http://doi.org/10.3208/jgssp.TC101-01, pp. 407-410.
  • Dilrukshi KGS, Dewapriya MAN, Puswewala UGA (2015), Size dependency and potential field influence on deriving mechanical properties of carbon nanotubes using molecular dynamics, Theoretical and Applied Mechanics Letters 5, Elsevier, pp.167-172.
  • De Silva LIN, Koseki J, Gabriele C (2015), A stress–strain description of saturated sand under undrained cyclic torsional shear loading, Soils and Foundations, 55(3), pp.559-574.
  • Chiaro G, Koseki J, De Silva LIN, Kiyota T (2015), Calibration and performance of a newly developed cyclic model to describe the liquefaction behaviour of loose and dense sand under torsional simple shear conditions. In: Proc. of the International Conference on Geotechnical Engineering, Aug. 10-11, Colombo, Sri Lanka, pp. 137-140.
  • De Silva LIN, Koseki J, Wahyudi S (2014), Stress-dilatancy relationships of sand in the simulation of volumetric behavior during cyclic torsional shear loadings, Soils and Foundations, 54(4): pp.845-858.
  • Chiaro G, Koseki J, De Silva LIN (2013), A density- and stress-dependent elasto-plastic model for sands subjected to monotonic torsional shear loading, Geotechnical Engineering Journal, SEAGS, Special Issue on Modelling Aspects of Soil Behaviour, 44(2): pp. 18-26. 
  • Chiaro G, Koseki J, De Silva LIN (2013). A density- and stress-dependent elasto-plastic model for sands subjected to monotonic torsional shear loading. SEAGS Geotechnical Engineering Journal, 44(2): 18-26.
  • De Silva LIN, Koseki J (2012), Modelling of sand behaviour in drained cyclic shear, Proc. of the 2nd International Conference on Advances in Transportation Geotechnics ii, Taylor & Francis Group, ISBN 978-0-415-62135-9, IS Hokkaido, Japan, pp. 686-691.
  • Premkumar S, De Silva LIN (2012), Quantitative Risk Assessment of Ancient Earth dams in Sri Lanka: Preliminary Assessment of Nachchaduwa Dam as a Case Study, Proceedings of Annual Transactions of IESL, Volume 1, Part B, pp. 76-84.
  • Premkumar S, De Silva LIN (2012), Development of a Risk Assessment Framework for Safety Evaluation of Earthen Dams in Sri Lanka, Proceedings of Annual Transactions of IESL, Volume 1, Part B, pp. 85-94.
  • Chiaro G, Koseki J, De Silva LIN (2012), An elasto-plastic model for liquefiable sands subjected to torsional shear loadings, In: Proc. of 2nd International Symposium on Constitutive Modeling of Geomaterials: Advances and New Applications, Constitutive Modelling of Geomaterials, Springer Series in Geomechanics and Geoengineering, October 15-16, Beijing, China, pp.519-526.
  • Kumarasiri C, De Silva LIN, Abeykoon S (2012), Evaluation of Soil Liquefaction in Sri Lanka - Adynamic Approach Using Geotechnical Investigation Data, Proc. of CERIS 2012 Symposium, University of Moratuwa, Sri Lanka, pp. 32-37.
  • Dilrukshi KGS, Dewapriya MAN, Puswewala UGA, Rajapakse RKND (2012), Characterisation of carbon nanotubes using molecular dynamic simulations, Proceedings, First National Nanotechnology Conference, Mt. Lavinia, Sri Lanka, pp. 73-76.
  • Namikawa T, Koseki J, De Silva LIN (2011), Three-dimensional Modelling of Stress-Strain Relationship of Sand Subjected to Large Cyclic Loading, Proceedings of 5th International Conference on Earthquake Geotechnical Engineering, Santiago, Chile, January 2011, published in CD-ROM
  • De Silva LIN, Koseki J (2011), Modelling of Drained and Undrained Cyclic Shear Behaviour of Sand, Proceedings of 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ISSMGE, Hong Kong, China, published in CD-ROM.
  • De Silva LIN (2011), Development of High Capacity Torsional Shear Apparatus for the Measurement of Small Strain Deformation Properties of Soils, Geotechnical Journal, Sri Lanka Geotechnical Society, ISSN 1391-6149, Volume 5, Number 1, December, pp. 1-8.
  • Chiaro G, De Silva LIN, Kiyota T, Koseki, J (2011), An elasto-plastic model to describe the undrained cyclic behaviour of saturated sand with initial static shear, Proc. of 5th International Symposium on Deformation Characteristics of Geomaterials (IS-Seoul 2011), Seoul, South Korea, September 1-3, Volume 2, pp. 1026-1033.
  • Chiaro G, Koseki J, De Silva LIN (2011), Modelling the cyclic undrained behaviour of sand with initial static shear stress”, Bulletin of Earthquake Resistance Structures, Institute of Industrial Science, University of Tokyo, Volume 44, March 2011, pp. 87-99.
  • Nilminie WNRPN, Puswewala UGA (2011), Finite Element Modelling of Deformation Characteristics of Soft soils in Colombo OCH Project, Proc. 17th Annual Symposium, ERU, University of Moratuwa, pp. 117-120.
  • Chiaro G, Kiyota T, De Silva LIN, Sato T, Koseki J (2010), Undrained cyclic torsional shear behaviour of saturated sand with static shear, Bulletin of Earthquake Resistant Structures, Institute of Industrial Science, University of Tokyo, Volume 43, pp. 161-172.
  • Wahyudi S, Chiaro G, De Silva LIN, Koseki J (2010), Stress-Dilatancy Behaviour of Loose Sand during Drained Cyclic Torsional Shear Loading, Submitted for the possible publication in the proceedings of 12th International Summer Symposium, Japan Society of Civil Engineers, Hokkaido, Japan, pp. 183-186.
  • Maduranga HR, Puswewala UGA (2010), Numerical Modelling of Effect of Underground Cavities on Foundations, Proceedings of the National Symposium on Building Research to Face Future Challenges, NBRO and Ministry of Disaster Management, pp. 24-31.
  • Chiaro G, Kiyota T, De Silva LIN, Sato T, Koseki J (2009), Extremely large post-liquefaction deformations of saturated sand under cyclic torsional shear loading, Proc. of Earthquake Geotechnical Engineering Satellite Conference, 17th ICSMGE, Alexandria, Egypt, CD-ROM, Paper-ID:03, October 2-3, pp. 1-10.
  • Chiaro G, Kiyota T, De Silva LIN, Sato T, Koseki J (2009), Effect of static shear stress on undrained cyclic behavior of saturated sand, Bulletin of Earthquake Resistant Structures, Institute of Industrial Science, University of Tokyo, Volume 42, 2009, pp. 63-71.
  • De Silva LIN, Koseki, J, Sato T, Kiyota T, Honda T (2008), Quasi-elastic bulk modulus of sand based on volume change and local deformation measurement of hollow cylindrical specimen, Proc. of the 4th International Symposium on Deformation Characteristics of Geomaterials (IS-Atlanta 2008), USA, pp. 105-111.
  • De Silva LIN, Sato T, Koseki J (2008), Modelling of drained cyclic shear behaviour of sand”, Proc. of the 10th International Summer symposium, JSCE, Tokyo, Japan, pp. 73-76.
  • Koseki J, De Silva LIN (2008), Improved modelling of cyclic shear stress-strain relations of sand and its effect on accumulation of volumetric strains (in Japanese), Proc. of the 43rd Annual Conference of JGS, Japan (2008).
  • Koseki J, De Silva LIN (2008), Modelling of dilatancy property and simulation of undrained cyclic shear behaviour of dense Toyoura sand (in Japanese), Proc. of the 63rd Annual Conference of the Japan Society of Civil Engineers, JSCE, Japan, in CD ROM.
  • Madurapperuma MAKM, Puswewala UGA (2008), Numerical Implementation of a Constitutive Model for Soil Creep, Journal of Mechanics of Materials and Structures, Vol. 3, No. 10, pp. 1857-1874.
  • Ketheeswaravenayagan R, Puswewala UGA (2007), Numerical Modelling of Deformation in Pre-loaded Embankment over Weak Soil, Engineer Journal, Vol. XXXX, No. 4, pp. 94-101.
  • Kiyota T, De Silva LIN, Sato T, Koseki J (2006), Small strain deformation characteristics of granular materials in torsional shear and triaxial tests with local deformation measurements, Soil Stress - Strain Behaviour: Measurement, Modelling and Analysis, A collection of Papers of the Geotechnical Symposium in Rome, Series: Solid Mechanics and its Applications, Vol. 146, pp. 557-566.
  • De Silva LIN, Sato T, Koseki J (2006), Variations of shear strain along height and perimeter of hollow cylinder specimens during cyclic torsional shear loadings, Proc. of the 8th International Summer symposium, JSCE, Nagoya, Japan, pp. 143-146.
  • Ketheeswaravenayagan R, Puswewala UGA, Fernando MBS (2006), Finite Element Prediction of Settlement and Pore Pressure for Soft Soil from Colombo-Katunayaka Expressway, Transactions 2006, The Institution of Engineers Sri Lanka, pp. 127-134.
  • De Silva LIN, Koseki J, Sato T, Wang L (2005), High capacity hollow cylinder apparatus with local strain measurements, Geotechnical Special Publication, ASCE, 156, pp. 16-28.
  • Kiyota T, De Silva LIN, Sato T, Koseki J (2005), Small deformation characteristics of gravel in torsional shear and triaxial tests with local deformation measurements, Proc. of the 40th Annual Conference of JGS, Japan, CD-ROM.
  • Koseki J, Sato T, De Silva LIN (2005), Improvement of local deformation measurement for hollow cylindrical specimens in torsional shear and triaxial tests, Proc. of the 40th Annual Conference of JGS, Japan, CD-ROM.
  • Puswewala UGA, Madurapperuma MAKM (2005), Numerical Implementation of a Constitutive Model for Soil Creep, Proceedings, 16th International Conference on Soil Mechanics and Geotechnical Engineering, International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE), Osaka, Japan, pp. 947-950.
  • Madurapperuma MAKM, Puswewala UGA (2005), Sensitivity Analysis of Soil Creep by using a Constitutive Soil Creep Model, Proceedings, 11th Annual Symposium, ERU, University of Moratuwa, pp. 273-283.
  • De Silva LIN, Sato T, Koseki J, Wang L (2004), Local and external measurement of quasi-elastic deformation properties of dry Toyoura sand in torsional shear and triaxial tests, Proc. of the 6th International Summer Symposium, JSCE, Saitama, Japan, pp. 221-224.
  • Kulathilaka SAS, Muhunthan A (2005), Numerical Simulation of the Use of Lightweight Fill in Construction of Embankments on Soft Peaty Clays, 16th International Conference on Soil Mechanics and Geotechnical Engineering, Osaka, Japan.
  • Rathnasiri RM, Peiris TA, Puswewala UGA (2003), Deformation Analysis in Model Soil Slope Studies ,  9th Annual Symposium, ERU, University of Moratuwa.
  • Gunatilaka IRP, Puswewala UGA (2001), Influence of tunnel shape, liner thickness and rock stiffness on the stress and deformation in rock surrounding elliptical tunnels, Transactions 2001, The Institution of Engineers Sri Lanka, Vol.1, Part B, pp. 170-185.
  • Kodagoda SSI, Puswewala UGA (2001), Numerical modelling of rock-socketed piles , Proc. 7th Annual Symposium, ERU, University of Moratuwa, November, pp. B1-B12.
  • Weerasinghe KM, Gunaratne M, Ratnaweera HGPA, Puswewala UGA, Arambepola NMSI (2001), Analytical determination of landslide potential using fuzzy sets and other statistical techniques, Proc. 7th Annual Symposium, ERU, University of Moratuwa, November, pp. B23-B31.
  • Puswewala UGA, Gunatilaka IRP, Hapuarachchi CL, Nandasena RM (2000), Influence of linings on stress and deformations in rock around tunnels, Proc. 6th Annual Symposium, ERU, Univ. of Moratuwa, pp. 154-167.
  • Puswewala UGA, Rajapakse RKND (1993), Computational analyses of creep in ice and frozen soil based on Fish’s unified model, Canadian Journal of Civil Engineering, Vol 20, pp. 120-132.
  • Puswewala UGA, Rajapakse RKND, Domaschuk L, Shields DL (1993), Creep response of laterally loaded piles in ice and permafrost, Geotechnique, Vol 43, No 2, 1993, pp. 223-240.
  • Puswewala UGA, Rajapakse RKND, Domaschuk L, Lach R (1992), Finite element modelling of pressure meter tests and footings on frozen soils, International Journal for Numerical and Analytical Methods in Geomechanics, Vol 16, pp. 351-375.
  • Puswewala UGA, Rajapakse RKND (1991), Penetration rates of a rigid core in an ice plate, Constitutive Laws for Engineering Materials: Recent Advances and Industrial and Infrastructural Applications, (ed. C.S. Desai et. al.), ASME Press, New York, NY, pp. 763-766.
  • Puswewala UGA, Rajapakse RKND (1991), A finite element code to evaluate creep of footings on frozen soils, Proceedings, 13th Canadian Congress of Applied Mechanics, Winnipeg, Manitoba, pp. 798-799.
  • Puswewala UGA, Rajapakse RKND (1990), Numerical modelling of structure-ice/frozen soil interaction, Journal of the Cold Regions Engineering, American Society of Civil Engineers, Vol 4, No 3, pp. 133-151.
  • Rajapakse RKND, Puswewala UGA (1989), Response of a rigid plate anchor in a poro-elastic medium, Proceedings, Annual Conference and the 9th Canadian Hydrotechnical Conference, Canadian Society for Civil Engineering, Vol 3, St. John’s, Newfoundland, pp. 270-282.
  • Puswewala UGA, Rajapakse RKND (1988), Axisymmetric fundamental solutions for a completely saturated porous elastic solid, International Journal of Engineering Science, Vol 26, No 5, pp. 419-436.
  • Puswewala UGA, Rajapakse RKND (1988), Axisymmetric load and flow sources in the interior of a poroelastic half space, The Applied Mechanics and Engineering Sciences Conference, Berkeley, California.
  • Karasudhi P, Puswewala UGA (1987), A finite element by singular contraction for saturated elastic half-spaces, Proceedings, 11th Canadian Congress of Applied Mechanics, Edmonton, Alberta, pp. 220-221.
  • Karasudhi P, Karunasena WM, Puswewala UGA (1987), An infinite element algorithm for multilayered saturated half spaces, Proceedings, U.S.-Korea Joint Seminar/Workshop on Critical Engineering Systems, Vol 1 (ed. C.-K. Choi and H.-S. Ang), Seoul, Korea, pp. 207-216.

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