The Steps of a Geotechnical Evaluation

Geotechnical drilling

A geotechnical evaluation is an engineering site assessment that determines what the foundation conditions are and recommends options for foundation design.  It is performed by a geotechnical engineer, and is required for most engineered structures including buildings, bridges, roads, and towers. The four main components of a geotechnical evaluation are: Planning Field Work Laboratory Analysis […]

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How to Determine the Atterberg Limits

The Atterberg limits, created by swedish chemist Albert Atterberg, are the moisture content, in percent, at which the soil changes state. They are defined as: Plastic Limit (solid to plastic) Liquid Limit (plastic to liquid) Some textbooks often refer to a third Atterberg limit, the “shrinkage limit” which defines the boundary between “solid” and a […]