Evaluation of the accuracy of continuum-based computational models in relation to field measurements in welded tuff
Conference
·
OSTI ID:59569
Developments of geologic radioactive waste repositories require validated numerical models for use in predicting rock mass response to pre- and post closure conditions. This paper represents an initial effort in geomechanical model validations by comparing in situ-based measurements in welded tuff with predictions from a numerical model. Results from mechanical, thermomechanical, and shear loading measurements are compared with output from calculations made with a 2-D dynamic relaxation finite element code (SANCHO) that utilizes descriptive normal compliance and shear parameters for a jointed rock. Data from the NNWSI-sponsored heated block experiment in G-Tunnel at the Nevada Test Site are used for the comparisons. Analyses indicate that the jointed rock based continuum model can be used to calculate quantities consistent with the measured phenomena in jointed welded tuff for the simple boundary conditions evaluated. 9 refs., 5 figs., 3 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States); RE/SPEC, Inc., Albuquerque, NM (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 59569
- Report Number(s):
- SAND--85-0261C; CONF-850614--6; CONF-8509129--1; ON: DE85015147
- Country of Publication:
- United States
- Language:
- English
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