Accession Number:
ADA109000
Title:
Laboratory Verification of Blast-Induced Liquefaction Mechanism
Descriptive Note:
Final rept. Jan-Jul 81
Corporate Author:
SAN DIEGO STATE UNIV CA DEPT OF CIVIL ENGINEERING
Personal Author(s):
Report Date:
1981-10-01
Pagination or Media Count:
60.0
Abstract:
A mechanism for blast-induced liquefaction was tested in a series of high pressure undrained, isotropic compression tests on saturated samples of Eniwetok beach sand and Ottawa sand. Theory, based on inelastic volume compressibility of sand, was shown to be valid for the case of quasi-static, isotropic loading. Specimens of Eniwetok sand subjected to an initial effective stress of 1 MPa were liquefied by a single cycle of loading of 34 MPa. Specimens of Ottawa sand, tested in the same manner, generated excess pore pressure but not enough to completely liquefy the soil. The errors introduced by flexibility of the testing systems were analyzed and found to be insignificant. Suggestions for future research were made. Author
Descriptors:
- *SAND
- *SOIL DYNAMICS
- *BLAST
- STRESSES
- CONVERSION
- VOLUME
- LABORATORY TESTS
- STATIC LOADS
- HIGH PRESSURE
- CRATERING
- SOIL MECHANICS
- NUCLEAR EXPLOSION SIMULATION
- SATURATION
- ISOTROPISM
- BLAST LOADS
- EARTH MOVEMENTS
- PORE PRESSURE
- INDUCED ENVIRONMENTS
- COMPRESSIVE PROPERTIES
- FLUID MECHANICS
- ENEWETAK ATOLL
- BULK MODULUS
Subject Categories:
- Soil Mechanics
- Test Facilities, Equipment and Methods
- Explosions