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Our engineering geophysics work generally centers around the use of our GeoGauge and our "Smartseis" seismograph. The GeoGauge directly measures the soil strength as a function of stiffness in kilo-pounds per inch and soil modulus in kilo-pounds per square inch. The soil modulus requires either an assumption or measurement of the Poisson's ratio for the soil. We use both compression and shear wave refraction with our seismograph. The shear wave refraction helps us to understand the dynamic wave properties of the soil. The discussion below provides and overview on how this information is applied to geotechnical engineering:
1. Subsurface Characterization: depth-to-bedrock, stratographic soil layering, groundwater depth, soil strength measurements. 2. Engineering Soil Properties: soil elastic/strength properties, soil properties distribution, moisture content, rippability-constructability. 3. Sesimic soil properties in the event of vibrations or earthquakes including liquifaction. |
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