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At Tonkin + Taylor, we specialise in engineering geology, assessing and managing geological and geotechnical hazards, such as landslides and earthquakes, and providing recommendations on site selection, excavation techniques, and construction materials.

Our engineering geologists conduct geological investigations, field studies, and laboratory tests to gather data and provide essential insights to our clients. We work collaboratively with other professionals, including civil engineers, environmental scientists, planners, and architects, to ensure infrastructure projects’ safe and sustainable development.

We understand that the expertise of an engineering geologist is crucial for the success of infrastructure projects and are committed to delivering high-quality, tailored services that meet the unique needs of each project.

Services

  • Rock mass classification and strength
  • Engineering geological mapping
  • Excavatability
  • On-site geological section development
  • Discontinuity mapping
  • Stereonet & Kinematic stability analysis
  • Oriented coring
  • Aerial photo interpretation and mapping
  • Onsite geological section development
  • Drilling and bored drains
  • Piezometer construction and monitoring
  • Inclinometer installation
  • Drilling and bored drains
  • Onsite geological section development
  • Limit equilibrium stability modelling
  • Geophysical surveys
  • Geological model and sections
  • Piezometer construction and monitoring
  • Dilatometer/pressure meter and permeability testing
  • Construction risk assessments
  • Geotechnical baseline reports
  • Rock mass classification
  • Discontinuity mapping
  • Onsite section development
  • Anchor installation
  • Bored drains
  • Stereonet & Kinematic stability analysis
  • Drilling and excavatability
  • Geological section
  • Piezometer and anchor installation
  • Inclinometer installation and monitoring
  • Downhole logging
  • Engineering geological mapping
  • Onsite section development
  • Drilling and test pitting
  • Piezometer installation and monitoring
  • Permeability testing
  • Stereonet analysis
  • Construction material sources
  • Dilatometer/pressure meter and downhole logging
  • Rock mass classification
  • Geological sections
  • Face mapping
  • Piezometer installation and monitoring
  • Permability testing
  • Downhole geophysics
  • Stereonet analysis
  • Buried services and drilling
  • Geological sections
  • Piezometer installation and monitoring
  • Groundwater and geophysical surveys
  • Permeability testing
  • Onsite section development
  • Rock mass classification
  • Risk analysis

Recent Projects

City Rail Link

City Rail Link

Northern Expressway, Pūhoi to Warkworth

Northern Expressway, Pūhoi to Warkworth

Northern Canterbury Transport Infrastructure Recovery

Northern Canterbury Transport Infrastructure Recovery

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Sectors

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