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Geotechnical investigation

SIEAT provide professional services of Geotechnical engineering standards are instrumental in specifying, testing, and investigating the physical/mechanical properties and characteristic behaviors of surface and subsurface earth materials that are relevant to a construction project. Such earth materials include soil, dimension stones, slate, soil-cement mixtures, ground water, bituminous geomembranes, slurry, rock mass, aquifers, and geotextiles.

These geotechnical engineering standards allow civil engineering firms and construction companies to examine the elastic characteristics, flow, and erosion behavior of the said earth materials to ensure safety and prevent unforeseen hazards related to the erection of civil structures. These geotechnical engineering standards allow civil engineering firms and construction companies to examine the elastic characteristics, flow, and erosion behavior of the said earth materials to ensure safety and prevent unforeseen hazards related to the erection of civil structures. Geotechnical Investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil and rock around a site to design earthworks and foundations for proposed structures and for repair of distress to earthworks and structures caused by subsurface conditions.

Geotechnical Investigations are also used to measure the thermal resistivity of soils or backfill materials required for underground transmission lines, oil and gas pipelines, radioactive waste disposal, and solar thermal storage facilities.
A geotechnical investigation will include surface exploration and subsurface exploration of a site. Sometimes, methods are used to obtain data about sites. Subsurface exploration usually involves soil sampling and laboratory tests of the soil samples retrieved. To obtain information about the soil conditions below the surface, some form of subsurface exploration is required. Methods of observing the soils below the surface, obtaining samples, and determining physical properties of the soils and rocks include test pits, trenching (particularly for locating faults and slide planes), boring, and in situ tests.

FIELD SERVICES:
  • SPT (Manual & Automatic)
  • Field Vane Shear Test
  • Cone Penetration Test – DCPT, SCPT, DPSH
  • Field CBR
  • Field Permeability Test
  • Pocket Penetrometer
  • Field Density Test
  • Plate Load Test
  • Pile Load Test (Lateral, Vertical, Pull out)
  • Trial Pit
LABORATORIES TEST SERVICES:
  • Sieve Analysis – Dry and Wet
  • Atterberg Limits
  • Specific Gravity
  • Natural Moisture content
  • Consolidation
  • Free Swell Index
  • Direct Shear Test
  • Triaxial Compression Test
  • Vane Shear Test
  • Unconfined Compressive Strength Test for Soil and Rock.
  • California Bearing Ratio.
  • Density of Rock
  • Chemical Analysis of Sulphates, chlorides and pH in Soil and Water.