...GEOTECHNICAL MEASUREMENTS FOR SAFETY ASSESSMENTS IN DIFFERENT DEVELOPMENT PHASES OF RADIOACTIVE WASTE REPOSITORIES IN SALT N. Diekmann 1, H. Schnier 1 and Th. Spies 1 ABSTRACT Geotechnical monitoring is an indispensable part of geoscientific investigation for all phases of the development...

... of elastostatics is represented by an additional boundary integral. The scope of the method is illustrated by analysing a heated repository buried in a three-layer semi-infinite medium. Three factors combine to make the method an attractive option for the solution of transient thermoelasticity: the Laplace...

... to commercial/industrial. The remediation strategy involves developing specific clean up goals based on the future use of each part of the site, excavation and replacement of contaminated soil to meet these goals and placement of contaminated soil in an engineered on-site repository. The potentially complex...

... currently regarded by the scientific and engineering community as viable is deep disposal in stable geologic formations. National and international repository concepts are being developed for this option. A further – and more urgent – challenge is presented by the need to deal with the many tonnes...

... ABSTRACT: The Swedish Final Repository for Low and Intermediate reactor waste (SFR) is the first facility for final radioactive waste disposal in the world. The SFR is located under the sea. The site investigations, research and documentation programmes carried out parallel to excavation...

... ABSTRACT: Variations in actual rock mass properties and inaccuracies in measuring these properties require that the design of underground supports for a nuclear waste repository be based upon statistical "probability of failure" calculations. A review of the material properties of the basalt...

... Abstract: A central repository for low and medium level radioactive waste from the Swedish nuclear power plants is under construction at Forsmark, Sweden. The most active waste will be disposed of in a rock cavern, designed as a silo 69 m in height and 30 m in diameter. The rock stability...

... ABSTRACT: Hydraulic fracturing tests designed to characterize the state of in situ stress were conducted in four deep boreholes. These tests are part of a site investigation program to assess the feasibility of constructing a nuclear waste repository in a basalt formation underneath...

... SUMMARY: The planned isolation of nuclear waste in mined rock repositories poses unusual requirements for rock mass characterization. This paper describes recently developed block test methods for characterizing and quantifying the thermal, mechanical and hydraulic properties of rock masses...

... SUMMARY: In the Federal Republic of Germany it is provided to dispose of the radioactive wastes from nuclear power plants in a repository within a salt dome. Because of the radioactive decay heat the salt dome will be heated, which a. o. results in thermal stress-strainfields. Therefore...

... repository reactor tunnel underground chain containment system nuclear power production rock mass Sweden NUCLEAR POWER PRODUCTION IN AN UNDERGROUND CHAIN Kernenergieproduktion in einer unterirdischen Anlage Production d'énergie nucléaire dans une installation souterraine OVE STEPHANSON STEN...

... SUMMARY: Computer calculations concerning a nuclear waste repository will require a high accuracy in the predictions of the deformations and the stability of the repository over very long times and therefore a hight level of sophistication in geomechanical modeling. For the Waste Isolation...