WIPP Intermediate Scale Borehole Test. A pretest analysis
A three-dimensional finite element structural analysis of the Intermediate Scale Borehole Test at the WIPP has been performed. The analysis provides insight into how a relatively new excavation in a creeping medium responds when introduced into an existing pillar which has been undergoing stress redistribution for 5.7 years. The stress field of the volume of material in the immediate vicinity of the borehole changes significantly when the hole is drilled. Closure of the hole is predicted to be larger in the vertical direction than in the horizontal direction, leading to an ovaling of the hole. The relatively high stresses near the hole persist even at the end of the simulation, 2 years after the hole is drilled.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 10133803
- Report Number(s):
- SAND-90-2423; CONF-910728-3; ON: DE92009562
- Resource Relation:
- Conference: 32. US symposium on rock mechanics,Norman, OK (United States),10-12 Jul 1991; Other Information: PBD: Sep 1991
- Country of Publication:
- United States
- Language:
- English
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WIPP Intermediate Scale Borehole Test
Pretest 3D finite element analysis of the WIPP Intermediate Scale Borehole Test