Geotechnical engineering for disaster prevention and rehabilitation : proceeding of 3rd International Conference on Geotechnical Engineering combined with 9th yearly meeting of the Indonesian Society for Geotechnical Engineering (ISGE) member of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE), August 3-4,2005 , Graha Santik - Phoon Kok Kwang (The International conference on geotechnical Engineering, 2005)