critical moisture
3.However, for the same river, the obvious regularity exists in critical starting condition and the physical and mechanical indexes: the critical starting condition of the muddy cohesive soil increases with the decrease of the shear strength and decreases with the increase of the moisture content; the critical starting condition of silty clay is the minimum, and the relation of the clay, the shear strength and the moisture content is nonlinear; and the critical starting condition of the cohesive soil increases with the increase of the shear strength and the moisture content.

