ACOUSTIC EMISSION MONITORING: A TOOL FOR THE SELECTION AND NONDESTRUCTIVE CHARACTERIZATION OF SITES FOR THE DEEP DISPOSAL OF RADIOACTIVE WASTE

摘要

1. The results of laboratory and field experiments have demonstrated good performance characteristics of the acoustic emission/micro-seismic activity method for monitoring the stress state in rocks;rn2. physical models based on the kinetic concept of the rock fracture process allow the possibility for the monitoring and long-term prediction of the behaviour of a rock mass;rn3. the monitoring systems deployed in some mines in the former Soviet Union have shown good operational parameters for the efficient prediction of rockbursts and strong motion events;rn4. the proposed software and system design concept may be applied to the monitoring of stress state in the host rock and structural components of a radioactive waste repository;rn5. the approach could also be used to monitor fracture processes in the near-field, e.g. in blocks of vitrified and solidified radioactive waste.