Who are we?

NGI Houston engineers work in collaboration with our main office and main laboratory in Oslo, Norway. NGI is the largest center for geotechnical engineering in Norway, and, one of the world's leading centers for geotechnical expertise.

Our ability to combine top competence from different specialties within geosciences enables us to supply a wide range of services. Our experience from challenging projects, in conjunction with the latest development in construction methods and equipment, give us a unique basis to provide our clients with state-of-the-art solutions.

Geotechnical engineers require relevant data on ground conditions that describe the soil material behavior, in order to make cost effective foundation design. The quality of laboratory testing of the strength and deformation properties of soil has given NGI's laboratory international acclaim.

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In-house laboratory

Our NGI Houston Laboratory perform both standard and advanced tests on soil samples to obtain soil properties for geotechnical engineering use. Our lab is fully equipped to perform all manner of soil tests typically required for geotechnical site investigations.

This include all standard index property tests as well as advanced tests used to study the effects of cyclic or dynamic loading on soil in areas prone to wave loading or seismic events. NGI Houston's lab is equipped with electronic measuring devices including load cells, LVDTs, pressure transducers, accelerometers and others, calibrated to NIST traceable standards on a regular basis.

NGI's geotechnical laboratories in Oslo and Houston cooperate closely, exchanging know-how, experience and capacity, in order to provide the best services to our clients. This ensures our vision – to be on safe ground.

Among others, we perform the following standard and advanced laboratory tests:

  • moisture content
  • sieve analysis
  • hydrometer analysis
  • miniature vane shear
  • electrical resistivity
  • thermal conductivity
  • specific gravity
  • organic content
  • percent calcium carbonate
  • soil pH
  • UU triaxial
  • tilt table tests
  • controlled rate of strain consolidation (CRS)
  • direct shear
  • direct simple shear (DSS) – static and cyclic tests
  • direct simple shear creep
  • cyclic triaxial testing
  • Ko consolidated undrained triaxial compression and extension (CKoU)
  • resonant column tests