Engineering & Earthquake Recovery

By using the latest technologies, such as Multichannel Analysis of Surface Waves (MASW) and Ground Penetrating Radar (GPR), we can provide engineers with:

• Shear wave velocities
• Depth to bedrock
• Void/cavity location
• Vibration monitoring
• Utility mapping
• Pile length and integrity testing
• Windturbine site surveys
• Subsurface information on liquefaction areas and other post-earthquake ground information.

We are specialists in the application of MASW (Multi-channel Analysis of Surface Waves), a geophysical technique which is useful when characterizing ground conditions, especially in Canterbury, but also in other parts of New Zealand. In Canterbury, liquefiable deposits often contain layers of gravel deposits (which are relatively stiff) and therefore CPT testing by itself may not penetrate deep enough to achieve the depth of ground characterisation required in the post-earthquake recovery period of rebuilding and when establishing new building sites.