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

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

Subject Categories:

  • Soil Mechanics
  • Test Facilities, Equipment and Methods
  • Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE