HVSR can be easily added to any site characterization project. When combined with other Vs data inputs (MASW or SCPTu or drilling with DST), an estimate of depth to till or bedrock can be performed.
Features
Frequency range = 0.1 - 200 Hz
Wireless unit monitors three orthogonal seismic sensors (N-S, E-W and Up-Down)
Advantages
Zero ground disturbance
No active seismic source required
Easy to add to any seismic site characterization project
Can be deployed simultaneously during other site investigation activities
Applications
Generating a site response spectrum
Identifying the resonant frequency (site period) and the resulting soil amplification
Modeling bulk shear wave velocity (Vs)
Rapidly estimating depth to till and/or bedrock, including very deep contacts
Seismic hazard assessments
Regional mapping
Can pair with other services to extend the depth of the investigation or determine Vs
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