能量法确定桩的承载力和沉陷

Energy method in determination of load-bearing capacity and settlements of piles

为了推导出桩的承载力和沉陷值之间的关系,应用能量法,由收锤时桩的贯入度以及由桩的静压实验提供的载荷Q/沉陷s关系曲线得到相应的计算方法。为了证明本文方法的正确性,在实际工程中应用了据此制定的收锤标准。实践证明,这种方法对节省桩长、工时以及工程费用有一定的实践意义。

Based on the depth of pile in earth when pile driving ceased and the load （ Q）/settlements relation curve given by the static load experiment, an energy method was introduced to derive the relationship between load-bearing capacity and settlements of piles. In order to prove the validity of this method, appropriate ceasing criteria of pile driving established by this method was used in practical projects. The results show that this method is practical to save engineering expense such as the length of piles and man-hour etc.