Affiliation: | (1) Via Tolstoj 86, 20098 San Giuliano Milanese (MI) – Italy e-mail: pietro.aleotti@snamprogetti.eni.it Fax: +39 02 52052586, IT;(2) University of Wollongong, Department of Civil Mining and Environmental Engineering, Northfield Avenue, Wollongong, New South Wales, 2522, Australia, AU |