This paper presents a series of centrifuge tests examining the performance of unreinforced piledembankments constructed over a soft subsoil in terms of stress acting on the subsoil, and differential movementat the surface of the embankment. The effect of a 'working platform' below pile cap level and thus directlyloading the subsoil is also considered. The normalised embankment height appears to be a critical parameter.Furthermore, a 'Ground Reaction Curve' concept can potentially be used to quantify variation of arching in theembankment with settlement. This would then allow the compatible contribution of the subsoil (and any geogrid)to also be considered in design.
展开▼
