Search

The purpose of this study is to evaluate the influence of freezing direction on the permeability of freeze-thawed soils. In this study, the permeability of both ice lens (IL) and IL orthogonal directions in the freeze-thawed soil were experimentally investigated. As a result, the permeability of IL direction was greater than IL orthogonal direction. Especially, the permeability of open-system freeze-thawed soils increased remarkably and it received not only the overburden pressure but also the influenced of both condition of pre-consolidation pressure and the number of freeze-thaw cycles. The permeability of closed-system freeze-thawed soils was lower than that of open-system. It was concluded that the permeability of freeze-thawed soil of IL direction is greater because of the remarkably greater void ratio in the colder temperature side of freezing.