- Faculty of Engineering
- Department of Civil Engineering
- Professor
Contact information
Univerity of Moratuwa
Katubadda
Moratuwa
Sri Lanka
Teaching and Administrative Activities
Soil Mechanics and Geology I -Undergraduate -2015
Soil Mechanics and Geology II -Undergraduate -2014
Geotechnical Engineering -Undergraduate -2014
Geotechnical Design -Undergraduate -2013
Research Project -Undergraduate -2013
Comprehensive Design Project -Undergraduate -2013
Computational Geotechnical Engineering -Undergraduate -2013
Engineering Properties of Soils -Postgraduate -2016
Ground Improvement Techniques -Postgraduate -2016
Design and Construction of Shallow Foundations -Postgraduate -2020
Design and Construction of Deep Foundations -Postgraduate -2020
Senior Treasurer -Senior Treasurer, Civil Engineering Society (2013 To 2017)
Subcommittee member -A committee member of the department accreditataion subcommittee (2014 To date)
Course coordinator -Course coordinator of M.Eng/P.G. Diploma in Foundation Engineering and Earth Retaining Systems (2013 To 2019)
Member -Member of Board of Studies (2015 To date)
Course coordinator - Course coordinator of M.Sc./P.G. Diploma in Geotechncal Engineering Course (2019 To date)
Member - Faculty Curriculum Revision Committee (2024 To 2025)
Member - Department Accreditation Subcommittee (2024 To 2025)
Research Activities
Full-time MSc students Mr. M. P. Amarasinghe Mr. Bandara A. M. D. C. Mr. C. Sanjei Mr. S. Premkumar Part-time MSc students Mr. Amil Samarasinghe Mr. Madanayaka T. A. Mr. Herath H.M.C.D. Ms. Nawarathna T. H. K. Mr. Hewagama S. K. Ms. Wijayawardhana H. M. J. T. Mr. Senarathne D. E. N. Mr. Gunasena U. G. P. P.
Soil structure interaction modelling, Soil dynamics, Retaining walls and deep excavations, Foundations
Education and Professional Affiliations
Bachelor's, 福利在线看 of Moratuwa ,2001
Masters, The 福利在线看 of Tokyo ,2004
PhD, The 福利在线看 of Tokyo ,2008
The Institution of Engineers(2011 To date)
Iinternational Society of Soil Mechanics and Geotecnical Engineering(2009 To date)
Career
Geotechnical consultant for Supporting Electricity Supply Reliability Improvement Project (SESRIP) Package 4, Construction of
33kV Tower Lines and Gantries
Geotechnical consultant for Construction of Central Expressway, Package 2 from Meerigama to Rilloluwa
Geotechnical consultant for Kandy City Waste Water Management Project, JICA Funded
Honours and Awards
Presidential award for outstanding research publication (Received 2016)
Publications*
Chiaro, G., Koseki, J.,".AN ELASTO-PLASTIC MODEL FOR LIQUEFIABLE SANDS SUBJECTED TO TORSIONAL SHEAR LOADINGS.",Springer,2012
MTR Jayasinghe, LIN de Silva, N.G.T.M. Sandamal,".Cellular Pile Raft Foundations for Lightweight Multi-Storey Buildings.",IESL Annual Transactions,Colombo,2024,539-546
L.I.N. De Silva G.D.R.A. Lakruwan,".Behaviour of Pile Groups in Layered Soil Subjected to Vertically Downward Loads.",IESL Annual Transactions,Colombo,2024,489-496
H.W.P. Gunasekara and L.I.N. De Silva,".Behaviour of Rock Socketed Pile Groups Socketed in Very Strong Bed Rock.",IESL Annual Transactions,Colombo,2024,469-474
L.T.D. Gunathilaka and L.I.N. De Silva,".Effect of Tie Beams on the Behavior of Isolated Foundation Systems.",IESL Annual Transactions,Colombo,2024,453-460
P.G. Jananga and L. I. N. De Silva S. Kopithan,".Pullout Resistance of Geo-Anchors.",IESL Annual Transactions,Colombo,2024,61-68
S. Kopithan, L.I.N. De Silva and P.G. Jananga,".Application of Geo Anchors in the Stabilization of Slopes.",IESL Annual Transactions,Colombo,2024,35-42
R.M.K.R. Subasingha and L.I.N. De Silva,".Applicability of Analytical Methods to Estimate the Point of Fixity of Laterally Loaded Piles on Multilayered Soils.",IESL Annual Transactions,Colombo,2024,15-22
V Silva,".Finite element analysis of a deep excavation supported using a secant pile wall: a case study.",MERcon,Moratuwa,2023,521-526
K Wijesooriya,".Study on the partial replacement of soft soils under shallow foundation.",MERcon,Moratuwa,2023,672-677
FSA Ansar,".A study on the mobilization of negative skin friction along end bearing piles installed through layered soils.",Smart Geotechnics for Smart Societies,Kazakhstan,2023,1580-1585
VSSD De Silva,".USE OF FIELD MONITORING DATA AND THE FINITE ELEMENT ANALYSIS IN THE OPTIMIZATION OF DEEP EXCAVATION SUPPORT SYSTEMS: A CASE STU.",International Conference On Sustainable Built Environment ,Kandy,2023,1249-1257
C. N. Liyanage,".A Study on Axial Performance of Helical Piles in Residual Soils.",MERCON,福利在线看 of Moratuwa,2022,
Gowshikan A.,".Effect of a shear key on the behaviour and stability of cantilever type retaining walls.",MERCON,福利在线看 of Moratuwa,2022,
C.Sanjei, L. I. N. de Silva,".Numerical modeling of geocell reinforced sand considering the actual geometry of geocell.",4thInternational Conference on New Developments in Soil Mechanics and Geotechnical Engineering,Nicosia, Cyprus,2016,599-608
C.Sanjei, L. I. N. de Silva,".Feasibility study of shallow foundation on geocell reinforced soil in Sri Lanka.",IESL Transactions,,2016,
C Sanjei, LIN De Silva,".Numerical modelling of the behaviour of model shallow foundations on geocell reinforced sand.",2016 Moratuwa Engineering Research Conference (MERCon),IEEE,2016,216-221
M. B. C. Hemadasa, U. P. Nawagamuwa,".Effect of Bentonite and Polymer Drilling Fluids on Skin Friction of Bored Piles.",Engineer Journal,Vol. 55-4, 9-15.,2022
M.T.R. Jayasinghe, C. Jayasinghe, K.K.G.K.D. Kariyawasam, and L.I.N. De Silva ,".SEMI-TIERED HOUSING FOR LATERITE EARTH SLOPING LANDS鈥擜 SUSTAINABLE SOLUTION WITH ALTERNATIVE MATERIALS AND METHODS.",Journal of Green Building,13(1),2018
MP Amarasinghe, LIN De Silva, C Gallage ,".The effect of lateral confinement on the settlement characteristics of shallow foundations on sand.",Int. J. GEOMATE ,15(51),2018
Chiaro, G., Koseki, J. & De Silva, L.I.N. ,".Modelling the Effects of Static Shear on the Undrained Cyclic Torsional Simple Shear Behavior of Liquefiable Sand.",SEAGS Geotechnical Engineering Journal,48(4),2017
K. H. S. M. Sampath . L. I. N. De Silva . M. S. A. Perera,".Effective usage of poker vibrator for compacting quarry dust: an application to ground improvement in shallow foundation design.",Geomech. Geophys. Geo-energ. Geo-resour. DOI 10.1007/s40948-016-0041-3,,2016
De Silva, L. I. N., Koseki, J. Gabriele, C. ,".A stress鈥搒train description of saturated sand under undrained cyclic torsional shear loading.",Soils and Foundations,55(3),2015
De Silva, L. I. N., Koseki, J., Wahyudi, S. ,".Stress-dilatancy relationships of sand in the simulation of volumetric behavior during cyclic torsional shear loadings.",Soils and Foundations,54(4),2014
Chiaro G., Koseki J. & De Silva L.I.N. ,".A density- and stress-dependent elasto-plastic model for sands subjected to monotonic torsional shear loading.",SEAGS Geotechnical Engineering Journal,44(2),2013
Research Publications in Refereed Journals
2. De Silva, L. I. N., Koseki, J., Sato, T. and Wang, L. (2005): 鈥淗igh capacity hollow cylinder apparatus with local strain measurements鈥�, Geotechnical Special Publication, ASCE, 156, pp. 16-28.
3. Chiaro, G., Koseki, J. & De Silva, L.I.N. (2013): 鈥淎 density- and stress-dependent elasto-plastic model for sands subjected to monotonic torsional shear loading鈥�, Geotechnical Engineering Journal, SEAGS, Special Issue on Modelling Aspects of Soil Behaviour, 44(2): pp. 18-26.
4. De Silva, L. I. N., Koseki, J. Gabriele, C.(2015): 鈥淎 cyclic elasto-plastic model to describe liquefaction behavior of saturated sand鈥�, Soils and Foundations, 55(3), pp.559-574
5. De Silva, L. I. N., Koseki, J. Gabriele, C.: 鈥淎 cyclic constitutive model to describe drained cyclic behaviour of saturated sand鈥�, will be submitted for possible publication in Geotechnique Journal.
Research Publications in Refereed Conferences/Symposia
2. L. I. N. De Silva & J. Koseki (2012):鈥滿odelling of sand behavior in drained cyclic shear 鈥�, 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.
3. De Silva, L. I. N., Koseki, J., Sato, T., Kiyota, T. and Honda, T.(2008): 鈥淨uasi-elastic bulk modulus of sand based on volume change and local deformation measurement of hollow cylindrical specimen鈥�, Proc. of the 4th International Symposium on Deformation Characteristics of Geomaterials (IS-Atlanta 2008), USA, pp. 105-111.
4. De Silva, L. I. N., Koseki, J., Sato, T.(2006): 鈥淓ffects of different pluviation techniques on deformation property of hollow cylinder sand specimens鈥�, Proc. of the International Symposium on Geomechanics and Geotechnics of Particulate Media, Taylor & Francis Group, ISBN 0-415-41097-5, Ube, Yamaguchi, Japan, pp. 29-33.
5. Kiyota, T., De Silva, L. I. N., Sato, T. and Koseki, J. (2006): 鈥淪mall strain deformation characteristics of granular materials in torsional shear and triaxial tests with local deformation measurements鈥�, Soil Stress - Strain Behavior: Measurement, Modeling and Analysis, A collection of Papers of the Geotechnical Symposium in Rome, Series: Solid Mechanics and its Applications, Vol. 146, pp. 557-566.
6. Tsutomu NAMIKAWA, Junichi KOSEKI ,Laddu Indika Nalin DE SILVA (2011): 鈥淭hree-dimensional Modelling of Stress-Strain Relationship of Sand Subjected to Large Cyclic Loading鈥�, Proceedings of 5th International Conference on Earthquake Geotechnical Engineering, Santiago, Chile, January 2011, published in CD-ROM
7. L. I. N. De Silva and Junichi Koseki (2011): 鈥淢odelling of Drained and Undrained Cyclic Shear Behavior of Sand鈥�, Proceedings of 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ISSMGE, Hong Kong, China, published in CD-ROM.
8. De Silva, L. I. N. (2011): 鈥淒evelopment of High Capacity Torsional Shear Apparatus for the Measurement of Small Strain Deformation Properties of Soils鈥�, Geotechnical Journal, Sri Lanka Geotechnical Society, ISSN 1391-6149, Volume 5, Number 1, December, pp. 1-8.
9. Chiaro, G., De Silva, L. I. N., Kiyota, T., and Koseki, J.(2011): 鈥淎n elasto-plastic model to describe the undrained cyclic behavior of saturated sand with initial static shear鈥�, Proc. of 5th International Symposium on Deformation Characteristics of Geomaterials (IS-Seoul 2011), Seoul, South Korea, September 1-3, Volume 2, pp. 1026-1033.
10. Premkumar, S., De Silva, L. I. N. (2012): 鈥淨uantitative Risk Assessment of Ancient Earth dams in Sri Lanka: Preliminary Assessment of Nachchaduwa Dam as a Case Study鈥�, Proceedings of Annual Transactions of IESL, Volume 1, Part B, pp. 76-84.
11. Premkumar, S., De Silva, L. I. N. (2012): 鈥淒evelopment of a Risk Assessment Framework for Safety Evaluation of Earthen Dams in Sri Lanka鈥�, Proceedings of Annual Transactions of IESL, Volume 1, Part B, pp. 85-94.
12. Chiaro, G., Koseki, J. & De Silva, L.I.N. (2012): 鈥淎n elasto-plastic model for liquefiable sands subjected to torsional shear loadings鈥�, In: Proc. of 2nd International Symposium on Constitutive Modeling of Geomaterials: Advances and New Applications, October 15-16, Beijing, China, pp.519-526.
13. Gopinath Kathiravelu, Bavendan P., Warnapura S. P., De Silva L. I. N.(2012): 鈥淟ateral Displacements of Commonly Found Gravity Retaining Aalls in Sri Lanka due to Seismic Action鈥�, Proc. of the 2nd International Conference on Sustainable Built Environment, Kandy, Sri lanka.
14. Madanayaka A., De Silva L. I. N., Dharmarathne P. G. R. (2012): 鈥淪tudy on Ground Vibration Due to Rock Blasting of Metal Quarry: A Case Study鈥�, Proc. of CERIS 2012 Symposium, 福利在线看 of Moratuwa, Sri Lanka, pp. 26-31.
15. Kumarasiri , C., De Silva L.I.N., Abeykoon, S. (2012): 鈥淓valuation of Soil Liquefaction in Sri lanka- Adynamic Approach Using Geotechnical Investigation Data鈥�, Proc. of CERIS 2012 Symposium, 福利在线看 of Moratuwa, Sri Lanka, pp. 32-37.
16 . Koorala S. K. D. C. P., Kumara M. K. S. N., Edirisinghe E. A. L., De Silva, L. I. N.(2012): 鈥淚nvestigation on Uplift Capacity of Shallow Foundations on Cohesionless Soil鈥�, Proc. of CERIS 2012 Symposium, 福利在线看 of Moratuwa, Sri Lanka, pp. 22-25.
17. Kumarasiri, H. C., De Silva, L. I. N., Abayakoon, S. B. S. (2011): 鈥淟iquefaction Potential in Sri Lanka-Preparing A Liquefaction Hazard Map Using Geotechnical Investigation Data, Proceedings of Annual Transactions IESL, Volume 1, Part B, pp. 110-117
18. Chiaro, G., Koseki, J. and De Silva, L. I. N. (2011): 鈥淢odeling the cyclic undrained behavior of sand with initial static shear stress鈥�, Bulletin of Earthquake Resistance Structures, Institute of Industrial Science, 福利在线看 of Tokyo, Volume 44, March 2011, pp. 87-99.
19. Premkumar, S., De Silva, L. I. N.(2011): 鈥淓valuation of Liquefaction Potential of Western and Eastern Coastal Areas in Sri Lanka鈥�, Proceedings of IESL-SSMS Joint International Symposium on Social Management Systems, Colombo, Sri Lanka, September 14 鈥� 16, pp. 703-709.
20. Chiaro, G., Kiyota, T., De Silva, L. I. N., Sato, T. and Koseki, J.(2010): 鈥淯ndrained cyclic torsional shear behavior of saturated sand with static shear鈥�, Bulletin of Earthquake Resistant Structures, Institute of Industrial Science, 福利在线看 of Tokyo, Volume 43, pp. 161-172.
21. Chiaro, G., Kiyota, T., De Silva, L. I. N., Sato, T. and Koseki, J.(2009): 鈥淓xtremely large post-liquefaction deformations of saturated sand under cyclic torsional shear loading鈥�, Proc. of Earthquake Geotechnical Engineering Satellite Conference, 17th ICSMGE, Alexandria, Egypt, CD-ROM, Paper-ID:03, October 2-3, pp. 1-10.
22. Chiaro, G., Kiyota, T., De Silva, L. I. N., Sato, T. and Koseki, J. (2009): 鈥淓ffect of static shear stress on undrained cyclic behavior of saturated sand鈥�, Bulletin of Earthquake Resistant Structures, Institute of Industrial Science, 福利在线看 of Tokyo, Volume 42, 2009, pp. 63-71.
23. Kulathilaka, S. A. S. and De Silva, L. I. N.(2003): 鈥淥ptimum geometrical shapes for gravity retaining structures鈥�, Proceedings of the 97th Annual Session of the Institute of Engineers, Sri Lanka, pp. 101-110.
Research Publications in Non - Refereed Conferences/Symposia
1. De Silva, L. I. N., Sato, T. and Koseki, J. (2008):鈥滿odeling of drained cyclic shear behavior of sand鈥�, Proc. of the 10th International Summer symposium, JSCE, Tokyo, Japan, pp. 73-76.
2. De Silva, L. I. N., Sato, T., Kiyota, T., Honda, T. and Koseki, J. (2007): 鈥淯se of electronic balance in measurement of small volumetric strain of hollow cylinder sand specimens鈥�, Proc. of the 9th International Summer Symposium, JSCE, Yokohama, Japan, pp. 167-170.
3. De Silva, L. I. N., Sato, T. and Koseki, J. (2006): 鈥漋ariations of shear strain along height and perimeter of hollow cylinder specimens during cyclic torsional shear loadings鈥�, Proc. of the 8th International Summer symposium, JSCE, Nagoya, Japan, pp. 143-146.
4. De Silva, L. I. N., Sato, T., Koseki, J. and Wang, L.(2004): 鈥滾ocal and external measurement of quasi-elastic deformation properties of dry Toyoura sand in torsional shear and triaxial tests鈥�, Proc. of the 6th International Summer Symposium, JSCE, Saitama, Japan, pp. 221-224.
5. Koseki, J., De Silva, L. I. N. (2008): 鈥淚mproved modeling of cyclic shear stress-strain relations of sand and its effect on accumulation of volumetric strains (in Japanese)鈥�, Proc. of the 43rd Annual Conference of JGS, Japan(2008).
6. Koseki, J., De Silva, L. I. N. (2008): 鈥淢odeling of dilatancy property and simulation of undrained cyclic shear behavior of dense Toyoura sand (in Japanese) 鈥�, Proc. of the 63rd Annual Conference of the Japan Society of Civil Engineers, JSCE, Japan, in CD ROM.
7. Mulmi, S., Nakajima, S., De Silva, L. I. N., and Koseki, J. (2007): 鈥淪hear stress-strain response analysis of backfill soil of model retaining wall using shaking table鈥�, Proc. of the 9th International Summer symposium, JSCE, Yokohama, Japan, pp. 151-154.
8. Kiyota, T., De Silva, L. I. N., Sato, T. and Koseki, J. (2005): 鈥淪mall deformation characteristics of gravel in torsional shear and triaxial tests with local deformation measurements鈥�, Proc. of the 40th Annual Conference of JGS, Japan, CD-ROM.
9. Koseki, J., Sato, T. and De Silva, L. I. N. (2005): 鈥淚mprovement of local deformation measurement for hollow cylindrical specimens in torsional shear and triaxial tests鈥�, Proc. of the 40th Annual Conference of JGS, Japan, CD-ROM.
10. Seto Wahyudi, Gabriele Chiaro, L. I. N. De Silva and Junichi Koseki (2010): 鈥淪tess-Dilatancy Behavior of Loose Sand during Drained Cyclic Torsional Shear Loading鈥�, Submitted for the possible publication in the proceedings of 12th International Summer Symposium, Japan Society of Civil Engineers, Hokkaido, Japan, pp. 183-186..
11. De Silva., L. I. N., Premkumar, S., Sujeevan, N., Nainanayaka, N. P. A. R. K. (2010): 鈥淟iquefaction Potential of Sand Deposits in Sri Lanka鈥�, Proceedings of 16th ERU Symposium, Sri Lanka, pp. 15 -17.
Research Monographs
1. Deformation Characteristics of Sand Subjected to Cyclic Drained and Undrained Torsional Loadings and Their Modelling, PhD Thesis, 福利在线看 of Tokyo, Japan (2008).
2. Locally measured quasi-elastic deformation properties of geomaterials under torsional shear and triaxial loadings, Master of Engineering thesis, 福利在线看 of Tokyo, Japan (2004).
3. Optimum Geometric Shapes for Gravity type Retaining Structures, Undergraduate project report, 福利在线看 of Moratuwa (2002).