Slope instability

Soil or rock masses with sloping surfaces are subject to forces associated with gravity and seepage which cause instability. Resistance to failure results mainly from a combination of slope geometry and the shear strength of the soil or rock itself. Different types of instability can be characterised by spatial considerations, particle size and speed of movement.

Capabilities of Natural Hazards New Zealand in this area:

  • Damage and Loss Assessment Methodology (e.g. scenario planning; simulations modelling; government policy; economic impact studies)
  • Emergency Recovery and Management (e.g. strengthening emergency & risk management processes; land & risk information management; improvement of building standards & review of building codes; community-based disaster management)
  • Information technology for Disaster Management (e.g. natural hazards & data integration; GIS modelling & visualisation)
  • Microzonation and Hazard Vulnerability Studies (e.g. activities required to develop hazard vulnerability studies, urban risk analysis, & microzonation studies; tools & technical capability to implement disaster management projects including appropriate disaster mitigation measures associated with land use planning & building regulations)
  • Prevention and Mitigation Measures (e.g. structural and non-structural solutions)
  • Risk Transfer and Insurance (e.g. risk information & analysis; designing risk transfer & insurance systems; risk communications)

Click here to view some NHNZ slope instability projects

Natural Hazards Inc. members and their key experts with experience on slope instability:

GNS Science

Geoconsulting Ltd

Testing Support Institute