We have the capacity to perform geotechnical analysis of the InSAR monitoring data. This involves a two-stage assessment;
- The first step is to assess whether the pattern of movements that has been measured corresponds to a pattern of movements of a known failure mechanism. There are many different types of subsidence, creeping or failure mechanisms, each of which has a unique pattern of movement signature that corresponds with the mode of failure take that takes place.
- The second step is to assess whether the deformational area of interest (AOI) being considered is exhibiting any time dependent rate of change of movement which would suggest that the failure or collapse is likely to take place in the future. This would usually need to be assessed by comparing measured deformation across a set of InSAR monitoring periods. The three principal types of rate of change of movement are regressive, creeping, or progressive behaviour.
The diagram below illustrates the usual workflows involved in geotechnical Analysis of InSAR Data:
To find out more about our Geospatial Services – contact Ken.