Geotechnical In Situ Specialty Testing (GIST)

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Too often we see vast amounts of time and money spent on intricate finite-element soil behavior models using overly conservative or unconservative design parameters that are not applicable, resulting in excessively over-designed or infeasible projects. 

It is our experience that when planning, designing, and constructing critical infrastructure, using a cutting-edge approach to understand the subsurface conditions and acquire the right type of data will help our clients achieve a sucessful project outcome—one that is both feasible and effectively engineered. 

For over 10 years, Sanborn Head has been collaborating with the University of New Hampshire, combining over 35 years of in situ specialty testing experience to help our clients understand—not only what is the appropriate investigative approach—but also when the cutting-edge is necessary and carries significant potential for project and bottom-line benefits.  These test methods are particularly valuable for challenging subsurface projects such as obtaining accurate and reliable geologic profiling, strength and deformation data on soft and loose soils, and for acquiring rock mass properties.  Our specialty testing services typically include:

  • Self Boring Pressuremeter Testing
  • Dilatometer Testing
  • Drilling Parameter Recorder
  • Field Vane Testing
  • Cone Penetrometer Testing
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