Permeability Behavior of High-Moisture Content Dredged Slurries

Abstract

In order to understand permeability behavior of high-moisture content dredged slurry in a storage yard, this article utilizes two modified oedometers to conduct consolidation and permeation tests on various kinds of high-moisture content dredged slurries in China. Experimental results show that although initial moisture content exerts a significant impact on the compression properties of dredged slurries, its impact on permeability property is relatively small, and the permeability coefficient has a one-to-one correspondence with the void ratio. In the coordinate system of e ∼ logk, the permeability coefficient of dredged slurry shows a nonlinear variance with void ratio. The permeability coefficient variability index C k is mainly distributed within 0.3 ∼ 0.7e and approximates to 0.5e. But in the coordinate system of loge ∼ logk, the permeability coefficient of dredged slurry shows a linear variance with the void ratio. Lastly, a e ∼ k quantitative method adapted to high-moisture content dredged slurry is proposed based on the normalized parameter e/e L .