Department of Civil Engineering



GEOTECHNICAL LABORATORY



  • Site investigation & feasibility studies
  • Design of earth structures, foundations
  • Special foundations
  • Slope stabilization
  • Ground improvement techniques
  • Instrumentation and monitoring
  • Model testing
  • Computer aided design and analysis
  • Soil classification and physical tests (Particle size, Atterberg Limits, Specific Gravity, Shrinkage, Insitu density)
  • Shear strength tests: (Direct shear, Triaxial tests (CU,CD,UU))
  • Compressibility & drainage tests: (1D consolidation, compaction, CBR, Permeability)
  • Rock tests: (uniaxial comp./tensile tests, triaxial, LAAV, Absorption, Point load, ultrasonic properties, soundness)
  • Field tests: (Plate load, Vane shear, Static/Dynamic cone Penetration, SPT, Vibration measurements, rock direct shear )
  • Drilling & sampling: (wash boring, rotary drilling, mechanized auger drilling, hollow stem auguring, Soil and Rock sampling using thin walled Piston sampler, Shelby tube, Denison sampler)
  • Geophysical exploration: (resistivity, seismic refraction tests)
  • Field instrumentation & monitoring: (settlement measurements, water level indicators, piezometers, extensometers, GPS instruments)
  • Investigations for landslides, quarries and construction materials

Triaxial Testing Machine


Direct Shear Testing Machine


Automatic Soil Compactor


Field Density Test Set



Consolidation Testing Apparatus


One-chamber diffusion apparatus for soil-gas diffusivity measurements


Drilling


Point Load Testing Apparatus


Plate load testing



Static Cone Penetration Testing


Rock shear testing


Monitoring movement using extensometers



  • Soil improvement -chemical stabilization
  • Alkali activated Geopolymers as borehole well cement
  • Mechanical integrity of well cement
  • Mechanical method of ground improvement
  • Feasibility of using pozzolanic materials (fly ash, silica fume, etc.) for geotechncial applications
  • Geotechnical characteristics and modelling of municipal solid waste dump sites
  • Shear strength characteristics and degradation of ballast in railroads
  • Use of geomats for reinforcing earth
  • Soil-gas diffusivity measurements and modeling in differently-characterized soils
  • Diffusivity-based characterization of porous media for earth and space-based applications
  • Modeling multiphase transport of multicomponent gases in heterogeneous porous media

With the advent of this Environmental Engineering Laboratory which is affiliated to the top seated university of Sri Lanka, University of Peradeniya, it is opened an avenue not only to research personnel but also to the industry as an independent and high principled analytical service establishment.

  • Laboratory testing of soils and rocks
  • Site investigation
  • Analysis and design of foundations, slopes and retaining structures.
  • Monitoring of slopes
  • Evaluation of proposals
  • Technical assistance for national projects
  • Applicability of washed sand in construction industry: Geotechnical perspectivesojects
Academic Staff
  • Prof. S.B.S. Abayakoon
  • Prof. U. de S. Jayawardena
  • Dr. L.C. Kurukulasuriya
  • Dr. (Mrs) D. de S. Udakara
  • Dr. Chamindu Deepagoda T.K.K.
  • Dr. M.C.M. Nasvi (Lecturer in-charge)
  • Dr. S.K. Navaratnarajah
Nonacademic Staff
  • Mr. A.G.D.L.Wijerathne
  • Ms. N. W. G. R. V. Hathurusinghe
  • Mr.W.M.D.T.Bandara
  • Mr.P.G.I.Lal Bandara
  • Mr. N.L.C.A.K.Nanayakkara
  • Mr. B.G.Jayatissa


Inquiries

Laboratory Telephone number:Mr.A.D.G.L.Wijerathne +94 81 239 3510


Department of Civil Engineering