Geosurveys innovation

Dr Andi Pfaffhuber

The presentation will use a range of case studies to illustrate how geophysical methods are being used innovatively to deliver geotechnical efficiency. The presentation illustrates:

• How radar satellite data is used to track infrastructure- and slope settlement to millimetre resolutions. Illustrations include a hydro dam and an urban example,
• How a multi-risk hazard assessment can be carried out along linear infrastructure,
• How lidar can be applied in tunnelling to control and document rock properties, shotcrete and rock support,
• How terrestrial photo/lidar/radar methods can be combined for geohazard assessment and urban infrastructure settlement,
• How airborne geophysics can be used to:
  • Perform soil investigations for geotechnical design of surface infrastructure,
  • Find major weakness zones along tunnel alignments
  • Classify hazardous quick clay
  • Find the base of massive debris- and rock slides
• How geophysical and geotechnical data combine to amplify the efficiency of ground investigations

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