EVALUATION OF LIQUEFACTION OF DECOMPOSED GRANITE SOILS BY MEANS OF FLOW LIMIT AND DISSIPATION ENERGY

Abstract

Deformation characteristics of decomposed granite soils during liquefaction process ware experimentally discussed from results of cyclic tri-axial test. As a result, the accumulated dissipation energy at occurrence of liquefaction depends on the void ratio and flow limit value of the sample of decomposed granite soil, and the approximate liquefaction resistance can be easily estimated from the values of the accumulated dissipation energy. Furthermore, the decrease process of shear modulus during liquefaction is closely related with flow limit value, and has a hyperbolic relation to the accumulated dissipation energy.