ACOUSTIC MEASUREMENT IN GEOMECHANICAL MODELING EXPERIMENT OF ARCH DAM ABUTMENT ROCKMASS STABILITY FOR ERTAN HYDROELECTRIC

In order to obtain the variation and distribution properties of stress and strain at the key parts of a model, especially at the safe area from an external burden, we first apply the acoustic testing to the comparatively large model experiment using the small-size sensors developed by ourselves. We obtained the testing results during the whole experiment process. The results and those from other testing methods are complement and verification to each other. The identical expecting results are obtained.