Testing Study on the Permeability Characteristics of Unsaturated Soils
The coefficient of permeability of unsaturated soil is an important parameter which is used to analyze moisture migration. For complexity and diversity of unsaturated soil behaviors, it is difficult to perform test of unsaturated soil because of many factors. With GDS system, the permeability characteristics of unsaturated soil are tested and studied in this paper which makes it possible to directly measure the coefficient of permeability at various combinations of net normal stresses and matric suction values. The research shows the coefficient of permeability of unsaturated soil is the function of suction and cell pressure.
Y. Cui and L. C. Miao, "Testing Study on the Permeability Characteristics of Unsaturated Soils", Advanced Materials Research, Vols. 261-263, pp. 1773-1777, 2011