Initial results researched the suffusion and quicksand in river dyke foundation by in-situ testing method
Abstract
The suffusion and quicksand are the typical permeable deformation forms occured on "discharge oppening" areas where underground seepage flows infiltrate through with the permeable pressure gradient overs limited permeable pressure gradient of soil. In order to forcasting the danger of permeable deformation for dyke ground foundation, it needs to be exactly determined the limited permeable pressure gradient caused suffusion (Ix gh) and the limited permeable pressure gradient caused quicksand (Ic gh). In the paper, the researched results for determining the permeable deformation characteristics (Ix gh & Ic gh) of the fine - silt sand layers belong to Thai Binh and Hai Hung fomations distribute on Red river dyke ground foundation by in-situ test.
