Recent case histories on monitoring settlement and load sharing of piled rafts in Japan

Piled raft foundations have been frequently used in many countries because they are recognized to be able to offer a cost-effective alternative to conventional pile foundations (Randolph 1994, 2003, Poulos, 2001, Poulos et al. 2001). In Japan piled rafts have been used for more than 60 buildings including high-rise buildings of over 100 m in height since it was first applied for the four-story office building in Urawa in 1987 (Yamashita & Kakurai, 1991).