8MEILANI I, RAHARDJO H, LEONG E. Pore-water pressure and water volume of an unsaturated soil under infiltration conditions[J]. Can Geotech J, 2005, 42:1509 - 1531.
9BARDEN L, MADEDOR A O, SIDES G R. Volume change characteristics of unsaturated clay[J]. J Soil Mech Found Div, 1969, 95(SMI): 33 - 52.
10FUTAI M M, ALMEIDA M S, CONCIANI W. Experimental and theoretical evaluation of maximum collapse[C]// 11th Panamerican Conf Soil Mech Geotech Eng, ISSMGE, Brazil, 1999: 8-12:267 - 274.
