Engineering

Seismic Refraction for

• Geology
• Engineering Properties (rippability, liquefaction)
• 2D Velocity profiles (bedrock topography)
• Water Table

Seismic Reflection for

• Deep 2D Geologic structures
• Fault and fracture zone studies

Surface wave studies for

• Average velocity structure over a site
• Deep velocity profiling (over 1,000 ft)
• Vs30 or Vs100 site class
• Earthquake site response
• Liquefaction studies

Borehole geophysics for

• Calibrating surface geophysics
• Accurate high-resolution 1D velocity profiles (Suspension)
• Defining rock structure attitude and orientation (Televiewer)
• Using Resistivity, Conductivity and Natural Gamma to help interpret stratigraphy (ELog and Induction)

Vibration Studies for

• Characterizing sites before siting sensitive equipment. GEOVision can measure motion starting at the micron level, from seconds to kilohertz
• Monitoring strong motion, such as pile driving or blasting
• Mitigating damage to historic structures