Abstract

Geotechnical research into the field of Unsaturated soils started in the 50’s with some funding papers including Croney, Coleman and Bishop’s pioneering contributions and its development started to be significant 20 years ago, following the venue of the UNSAT’95 - First International Conference on Unsaturated Soils held in Paris in 1995, as a consequence of a series of successful Conferences on Swelling soils with the last one held in Dallas (1992).