(1) Excavation design requires the stress determination at large scale
(2) The proposed method based on
***large-scale surface stress and modulus measurements at a number of points in the excavation and then
***the back analysis for a given excavation shape
allows simultaneous reconstruction of the stress components at the scale of excavation
(3) An advantage of the proposed method over the under-excavation technique is that it does not require the prior determination of the rock mass moduli and does not interfere with the mining operations