Abstract
The authors have studied the liquefaction characteristics of decomposed granite soil called Masado. Masado is reclaimed ground material on Kobe artificial island, which liquefied during the 1995 Hyogo-ken Nanbu earthquake. To evaluate liquefaction resistance of soil from ductility viewpoint, the energy dissipation capacity obtained from cyclic triaxial test under strain controlled condition was used. Comparing the energy dissipation capacity of Masado with that of fine clean sand such as Toyoura sand, it was found that the energy dissipation capacity of Masado has a small dependency on its relative density comparing to clean sand. It was also found that fines existing around coarse soil particles play an important role on liquefaction resistance of soil.
