Toward compaction of overmoistured clay soil

Abstract

Various complicated processes, including physical and chemical, occur in clay soils, which finally determine their strength and stress-and-strain properties. In order to use clay soils as a subgrade, it is necessary to increase their strength primarily through a compaction. In clay soil compaction, the main role belongs to physically bound water, which gathers around soil particles forming water envelopes and making the compaction difficult. The paper considers compaction of overmoistured clay soils along with vibration, that provides an intensive transition of bound water to a free state. In this case, the envelopes of physically bound water become smaller, thereby increasing the possibility of the particle bonding under pressure. This improves the contact between the soil particles and the soil compaction.