U.S. Department of EnergyOffice of Scientific and Technical Information
Operation Hardtack. Project 3. 2. Response of earth-confined flexible-arch structures in high-overpressure regions
Abstract
The purpose of this project was to determine structural responses and failure criteria of earth-confined corrugated-steel flexible arches subjected to high overpressure blast loading from nuclear detonations. A flexible arch is considered as an arch structure whose ultimate supporting capacity is dependent upon confinement within a surrounding earth configuration. A collateral objective was to determine the radiation-shielding effectiveness of such structures with a minimum cover of five feet of coral sand. Because the soil and ground-water conditions at Eniwetok did not permit the placing of the steel arches below natural-grade level, the structures were confined within massive non-drag sensitive earthwork configurations of coral sand. Empirical determinations were made of the responses of (1) three earth-confined prefabricated corrugated-steel flexible arches when subjected to relatively long-duration blast loadings from a megaton range detonation; and (2) one similar earth-confined flexible-arch when subjected to relatively short-duration blast loadings from a kiloton-range detonation.
- Authors:
- Publication Date:
- Research Org.:
- Naval Civil Engineering Lab., Port Hueneme, CA (USA)
- OSTI Identifier:
- 7110389
- Report Number(s):
- AD-A-995386/0/XAB
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; FALLOUT SHELTERS; BLAST EFFECTS; SHIELDING; HARDTACK PROJECT; MECHANICAL STRUCTURES; NUCLEAR EXPLOSIONS; DETONATIONS; GROUND WATER; SAND; EXPLOSIONS; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; SHELTERS; WATER; 450202* - Explosions & Explosives- Nuclear- Weaponry- (-1989)
Citation Formats
LeDoux, J C, and Rush, P J. Operation Hardtack. Project 3. 2. Response of earth-confined flexible-arch structures in high-overpressure regions. United States: N. p., 1985.
Web.
LeDoux, J C, & Rush, P J. Operation Hardtack. Project 3. 2. Response of earth-confined flexible-arch structures in high-overpressure regions. United States.
LeDoux, J C, and Rush, P J. 1985.
"Operation Hardtack. Project 3. 2. Response of earth-confined flexible-arch structures in high-overpressure regions". United States.
@article{osti_7110389,
title = {Operation Hardtack. Project 3. 2. Response of earth-confined flexible-arch structures in high-overpressure regions},
author = {LeDoux, J C and Rush, P J},
abstractNote = {The purpose of this project was to determine structural responses and failure criteria of earth-confined corrugated-steel flexible arches subjected to high overpressure blast loading from nuclear detonations. A flexible arch is considered as an arch structure whose ultimate supporting capacity is dependent upon confinement within a surrounding earth configuration. A collateral objective was to determine the radiation-shielding effectiveness of such structures with a minimum cover of five feet of coral sand. Because the soil and ground-water conditions at Eniwetok did not permit the placing of the steel arches below natural-grade level, the structures were confined within massive non-drag sensitive earthwork configurations of coral sand. Empirical determinations were made of the responses of (1) three earth-confined prefabricated corrugated-steel flexible arches when subjected to relatively long-duration blast loadings from a megaton range detonation; and (2) one similar earth-confined flexible-arch when subjected to relatively short-duration blast loadings from a kiloton-range detonation.},
doi = {},
url = {https://www.osti.gov/biblio/7110389},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Sep 01 00:00:00 EDT 1985},
month = {Sun Sep 01 00:00:00 EDT 1985}
}