Abstract
Damage resulting from severe earthquakes are commonly caused by liquefaction of loose and saturated sands and strong ground motions. For two decades, researchers have sought for parameters that might better explain the liquefaction potential of a soil deposit. The use of the energy concept to define the liquefaction potential of a soil is discussed in this paper and has been validated in laboratory tests on sand specimens. Numerous tests were conducted at various confining pressures, relative densities, and strain amplitudes to determine energy per unit volume required for liquefaction. Relationships were developed between the energy per unit volume and the varying test parameters. The dissipated-energy-per-unit-volume approach shows promise and is accommodating to nonuniform loading typical of earthquakes.
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