A joint US/FRG nuclear waste repository simulation experiment was performed at the Asse Salt Mine in the Federal Republic of Germany (FRG).The High Level Waste (HLW) disposal in boreholes was simulated by the simultaneous emplacement of electrical heaters and cobalt-60 sources at four individual test sites located in a special underground test room at the 800 m-level.In order to resolve the issues of rock mass/waste package interaction the temperature field, brine migration into the heater boreholes, borehole gas pressure and composition, and rock mass stresses and displacements were monitored during the test. In order to validate computer code predictions the acquired data were compared to calculational results. Corrosion specimens remained in the heater boreholes during the course of the experiment and were afterwards examined.

This paper compares constrained modulus and related data from a geotechnical engineering investigation of a 40,000 m 2 site in the Southeastern United States that lies within the Atlantic Coastal Plain. This study includes 47 cone penetration tests (CPTs and SCPTs) and 13 flat-plate dilatometer tests (Seismic and non-seismic DMTs) and over 80 incremental and constant rate of strain consolidation tests. This paper compares the CPT-and DMT-correlated constrained moduli and laboratory test results from co-located borings. The comparative analyses show major differences and key similarities in the correlated values; sources for these differences and similarities are discussed. This paper concludes that in contrast to the DMT, CPT/SCPT soundings and often laboratory consolidation testing underestimate key settlement parameters because of disturbance. Correlations for the investigated soil types are also presented.

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