Laboratory Studies of Containment in Underground Nuclear Tests.
Abstract
As part of the DNA containment program for underground nuclear testing, laboratory experiments were performed with small explosive charges cast in compressed grout spheres to assess the effects on containment of the residual stress field surrounding an exploded cavity. A comparison of constant flow-rate hydrofracture pressures in unvented exploded and unexploded cavities revealed the existence of a residual stress field that was beneficial to containment. Parameters were varied to provide an understanding of mechanisms controlling containment. The effects on containment of geological and test site features were examined. The data provide results suitable for development of containment theories and for correlation with predictions of existing computer codes. Unexploded cavity hydrofracture records were interpreted in terms of classical fracture mechanics theory. A simple analysis was applied to examine post test pore water migration and consequent stress relaxation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1980
- Accession Number
- ADA104689
Entities
People
- A. L. Florence
- J. C. Cizek
Organizations
- SRI International