Design and practice of settlement-reduced pile in soft clay ground

Settlement of multi-storied building with natural shallow foundation constructed on soft ground exceeds the permitted limimits,though the bearing capacity of the ground is enough.The calculated center settlement of the foundation is as much as 254.4mm,which will be reduced to 135mm when some settlement-reducing pile are set beneath the foundation.It is proved that composite foundation with settlement-reducing pile can reduce the settlement of multi-storied building.In this case,engineering costs save as much as 33 percents of that of pile foundation.