A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Blast Induced Liquefaction of Soils: Laboratory and Field Tests
Our field, laboratory and theoretical research indicate that the destruction potential of an explosion may be greatly magnified if detonated in water saturated granular soils. While blast-induced liquefaction may not necessarily damage a facility structurally, it may render it unusable. Empirical models are given that can be used to estimate liquefaction potential as a function of density, effective stress and applied compressive strain. One of the models uses an empirical scaling law for explosive loadings to predict the extent of porewater pressure increase in the field from buried, contained charges in saturated soils. A numerical analysis that considers the saturated soil as a two-phase medium is presented. The analysis accounts for the nonlinear, inelastic behavior of the soil skeleton and has shown that liquefaction is dependent upon the constrained modulus of the soil skeleton. Keywords: Liquefaction; Porewater Pressure; Dynamic testing, Blast loading; Soil mechanics; Laboratory testing; Field testing; Material modeling; Explosive loading; Saturated sand. (JES)
Blast Induced Liquefaction of Soils: Laboratory and Field Tests
Our field, laboratory and theoretical research indicate that the destruction potential of an explosion may be greatly magnified if detonated in water saturated granular soils. While blast-induced liquefaction may not necessarily damage a facility structurally, it may render it unusable. Empirical models are given that can be used to estimate liquefaction potential as a function of density, effective stress and applied compressive strain. One of the models uses an empirical scaling law for explosive loadings to predict the extent of porewater pressure increase in the field from buried, contained charges in saturated soils. A numerical analysis that considers the saturated soil as a two-phase medium is presented. The analysis accounts for the nonlinear, inelastic behavior of the soil skeleton and has shown that liquefaction is dependent upon the constrained modulus of the soil skeleton. Keywords: Liquefaction; Porewater Pressure; Dynamic testing, Blast loading; Soil mechanics; Laboratory testing; Field testing; Material modeling; Explosive loading; Saturated sand. (JES)
Blast Induced Liquefaction of Soils: Laboratory and Field Tests
W. A. Charlie (author)
1988
198 pages
Report
No indication
English
Soil Sciences , Detonations, Explosion Effects, & Ballistics , Blast loads , Soil mechanics , Behavior , Blast , Compressive properties , Destruction , Dynamic tests , Elastic properties , Explosions , Explosives , Field tests , Induced environments , Laboratory tests , Liquefaction , Materials , Models , Nonlinear systems , Numerical analysis , Sand , Saturation , Scaling factors , Skeleton , Soils , Strain(Mechanics) , Two phase flow
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