Interactions of Stress Waves with Deeply-Buried Tunnels in Geologies with Cracks and Discontinuities.
Abstract
The purpose of this study was to examine the response of deeply-buried tunnels to the effects of high stress dynamic loading. In the Phase I portion of the study, attention was concentrated on the effects of geologic discontinuities (e.g., joints) on tunnels, with particular emphasis on the interactions between joints and backpacking. In phase II, emphasis was on the response of integral tunnels in hard and soft rock geologies, and on the implementation of a coupled finite element/finite difference method (called LAP, for Linked Analysis Program) for analyzing the response of thin liners to dynamic loading in geologic media. In this report, a summary is provided of the Phase I work, and a more detailed discussion is given of the Phase II effort. Recommendations are made as to work which might be conducted in an on-going program. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1976
- Accession Number
- ADA052610
Entities
People
- G. E. Eggum
- K. N. Kreyenhagen
- M. Rosenblatt
- Y. M. Ito