Geotechnical survey is extremely important in all kinds of construction in underwater, from constructions of peers, oil rigs to cable and pipeline lying. Depending on the survey specifications gravity core or vibrocore samplers may be used for collecting samples from desired depth. Grab Sampler is used to get sediment samples from the sea floor

Samples subjected to required tests such as grain size, atterberg, unconfined compression, triaxial strength, unconfined shear, water content, specific gravity natural unit weight, consolidation by accredited laboratories in order to evaluate the geotechnical design criteria of the survey site.

Collected data correlated with geophysical survey results in order to make interpretation of all geotechnical and geophysical data of the survey site.

Derinsu is Capable of performing

COHESIONLESS MATERIAL

• Determination of:

• Natural unit weight

• Water content

• Specific gravity of grains

• Max. and min. density

• Relative density

• Carbonate content

• Organic content

• Permeability

• Grain size analysis

• Cyclic triaxial test

COHESIVE MATERIAL

• Natural unit weight

• Water content

• Specific gravity of grains

• Atterberg limits

• Carbonate content

• Organic content

• Grain size analysis

• Index shear strength tests

• Determination of:

• Undrained shear strength

• Sensitivity

• Constant rate of strain consolidation test

• Triaxial test

• Cyclic Direct Simple Shear Tests

ROCK

• Unit weight

• Unconfined uniaxial compression test

• Point load test