Xdisp – Can Xdisp be used to model movements in rock arising from tunnelling operations?
Xdisp could be used for calculating ground movements in soft or weathered rocks (for example mudstones or chalk). Appropriate case studies should be back analysed to verify the gaussian method and justify appropriate k and volume losses given the ground conditions for the proposed tunnelling type.
The mines method is more appropriate where a seem of rock is extracted. This would usually be the form of excavation rather than a cylindrical tunnel form. The user should refer back to the Ren et al paper to check the applicability of the method to the proposed problem they intend to analyse and seek case study data to confirm the appropriate numbers for the various input data.