Working
Party Matters
Membership
| Terms of
Reference |
Task
Allocation |
Intranet
|
Geohazard Communication |
Links |
|
Landslides & Slope
Instability
Engineering Geologists | Planners & Developers | Finance & Insurance
| Member of the Public
|
Subsidence & Collapse
Hazard
Engineering Geologists | Planners & Developers | Finance & Insurance
| Member of the Public
|
Seismic Hazard
Engineering Geologists | Planners & Developers | Finance & Insurance
| Member of the Public
|
Flood Hazard
Engineering Geologists |
Planners & Developers | Finance & Insurance | Member of the Public
|
Tsunami Hazard
Engineering Geologists |
Planners & Developers | Finance & Insurance | Member of the Public
|
Volcanic Hazard
Engineering Geologists | Planners & Developers | Finance & Insurance
| Member of the Public
|
Gas Hazard
Engineering Geologists |
Planners & Developers | Finance & Insurance | Member of the Public
|
Fault Reactivation Hazard
Engineering Geologists | Planners & Developers | Finance & Insurance
| Member of the Public |
| |
Fault
Reactivation: Investigation and Mitigation |
Index |
Diagnostic Characteristics |
Geographic Occurrence |
Investigation
& Mitigation |
Key Contacts & Expert Advice
|
Photo
Gallery | Essential References &
Further Reading
Areas where fault reactivation has taken place may need to
be brought to the attention of engineering geologists, geotechnical engineers,
conveyance solicitors, insurance companies, mining engineers and landfill
operators. However, the absence of information on fault reactivation, in former
and currently active coalfields, does not necessarily imply that reactivation
has not occurred.
It would be prudent on all sites containing geological faults in active and
former mining areas, to investigate their potential affects on ground stability,
before development and construction is carried out. It is recommended that this
be undertaken at the desk study and site investigation stage of a project to
reduce the risks for unforeseen ground conditions.
It is recommended that recently active faults, and prominent lithological
contacts (which are also susceptible to shear displacements during subsidence),
be avoided for the siting of engineered structures, houses, landfill, waste
sites, reservoirs, dams, roads, motorways, railways, tunnels and utilities. If
alternative sites can not be found then site investigations are recommended to
identify the associated potential hazards and to assess their risks, liabilities
and consequences, or to determine any necessary ground treatment. This
information may be required by geologists, engineers and planners so that the
ground can be suitably treated, or appropriate foundations designed, prior to
any construction.
The results from a desk study and site investigation may then enable suitable
mitigation measures to be designed. The options available will depend on the
geology and past mining but may include grouting, the emplacement of reinforced
geotextile mattresses or the monitoring of ground movements if a reactive,
rather than proactive approach is decided.
Index |
Diagnostic Characteristics |
Geographic Occurrence |
Investigation
& Mitigation |
Key Contacts & Expert Advice
|
Photo
Gallery | Essential References &
Further Reading
|