Gypsum is a soluble material, and it one of the problematic components in soil west Iraq. Al-Najaf governorates Iraq which suffers from gypsum content different levels. The city mainly sand-sized particles bonded by percentages gypsum. main problem this component dissolution upon wetting process. This paper investigates effect decreasing matric suction (wetting) on deformation under specific st...

Field infiltration tests were conducted at a hillside near the ship lock of the Three Gorges Dam in Hubei Province, China. The test site consists of residual soil and decomposed granite. The infiltration rate is estimated from the in situ tests to be 1.465–2.778×10−6 m s−1, depending on the initial water content. The rate at which the infiltration front moves down through the soil matrix within...