ABSTRACT
The shear strength and swelling-shrinkage characteristic of a typical expansive soil from Yichang, Hubei province, China is systematically investigated. The correlation between the shear strength parameters, swelling pressure, expansion ratio under various loading pressures, shrinkage degree, shrinkage index and initial water content of unsaturated compacted expansive soil is established. The mechanism of some of the above mentioned parameters existing critical point is analyzed.
