In the excavation work on soft ground, the soil improvement method by quicklime piles is likely to be employed in order to obtain the safety of the earth retaining structure. Due to the driving of the quicklime piles, the adjacent ground is moved horizontally and vertically. Sometimes the ground movement during soil improvement work damages to adjacent ground facilities. In this paper, based on the measured ground displacement in detail, the prediction method of the ground movement and the prevention method of the ground movement are presented.
