Geotechnical instrumentation, in situ testing; hydrogeological testing, characterization, measuring systems; data acquisition and monitoring systems; data visualization, data management systems; Hidcon, high deformable concrete elements for tunneling.
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geotechref
A Wiki-based collection of geotechnical engineering information, tutorials, resources, and downloads. Visit geotechref
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Soil Retention Systems, Inc.
Western US contractor based in CA specializing in construction segmental retaining walls for 20 years. Visit Soil Retention Systems, Inc.
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Geophysical Survey Systems
Geophysical Survey Systems, Inc. (GSSI), is the world leader in the development and manufacture of commercial ground penetrating radar (GPR) systems and electromagnetic induction instruments (EM). Visit Geophysical Survey Systems