Abstract
Because the soil material has a viscous property, the energy consumption required in the process of soil densification depends on the loading ratio. To find the most efficient loading method, which minimize energy consumption within some limited period, the variational method is applied to the time-dependent stress-strain models of soil. Maxwell-Voigit model and Sekiguchi model are chosen as a representative time-dependent model. Also densification tests are conducted at various strain rates in laboratory. The test results show that the Sekiguchi model predicts the soil behavior well, and the parameter of the efficient loading is procured. The proposing loading method based on this model reduces the energy consumption for soil densification.
