WP1: Key properties of critical zones in sinkholes
Here, the scientific aims of this topic are to understand: what is the structural character of the subsidence areas and their surrounding? How can we survey disaggregation zones and describe them geophysically? and, how strong is their variability in space and time?
For this work package, three main research topics are defined: 1) identify and predict seismic attributes for subrosion from surface measurements, 2) define physical properties in situ and test their geothecnical application potential, and 3) render specific and sensitive parameters for long-term monitoring concept.
In order to investigate these topics, three main methods suggested in this work are: 1) combined surface (S-waves and P-waves) and borehole (VSP/MSP) seismic survey, 2) borehole and lab measurements of physical and structural parameters, and 3) tomographic and cross-hole studies (Fig. 1).