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Advanced & Dynamic Triaxial Tests

To attain soil parameters pertinent to the designs of offshore structures and constructions in earthquake prone areas

Advanced Testing
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Direct Simple Shear

Direct Simple Shear aims to investigate the static and cyclic properties of soils at small strains, such as cyclic stress-strain loops, maximum shear modulus, secant shear modulus, and the equivalent damping ratio.

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Cyclic Triaxial Tests

Cyclic Triaxial Tests determine the modulus and damping properties of soils in either undisturbed or reconstituted states by either load or stroke controlled cyclic triaxial techniques. The cyclic triaxial properties of soil are evaluated relative to a number of factors including: strain level, density, number of cycles, material type, saturation, and effective stresses.

Resonant Column

Resonant Column Test is used to determine the shear elastic modulus and damping properties of soils. The method is based on torsional or flexural vibration of the sample and using the results for solving the equation of wave propagation using the theory of elasticity.

Bender Element Testing

Bender element test allows us to measure the maximum shear modulus (Gmax) of a soil sample and from this data to evaluate the stiffness of a soil. Gmax is generally associated with shear strain levels of about 0.001% and is a key parameter in small strain dynamic analysis, such as those to predict soil behaviour or soil structure interaction during earthquakes, explosion or machine and traffic vibrations.

Bauxite Testing

Bauxite Testing

Tests were done on Bauxite samples to determine the permeability so that when the samples were shipped from the source to the intended destination, the cargo would not be top heavy as it would capsize the vessel during rough weather. Unconventional permeability apparatus catering to specimen measurements of 240mm diameter by 1m height was fabricated specifically for this project.

Innovations over the years

  • Rowe Cell tests up to 2500 kPa vertical stress.

  • Simple Shear Tests with back pressure to aid saturation process to 200 kPa and normal stress up to 2000 kPa 

  • Measurement of axial strain with accuracy of + 2 microns thus delivering qualitative test results for CRS consolidation and other triaxial tests.

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