In Situ Tests of Salt Deformation for Validation of a Radioactive Waste Repository Predictive Technology

To assure the safety of a radioactive waste repository, it is necessary to predict the performance of the repository far into the future. The Waste Isolation Pilot Plant (WIPP) Program is responsible for developing the technology for such performance predictions in bedded salt. An important technology development activity concerns the fielding of very large scale in situ tests to determine the time-dependent deformation of underground openings salt as a basis for validation of the predictive technology. This technology is necessary to predict repository seal performance and final closure times of rooms, and may be of value to the salt and potash mining community, as well.