桩基设计的若干建议

Some Proposals about the Design of the Pile Foundation

筒式柴油打桩锤，由于打击能量大，最终贯入度，取最后三锤的平均值，而对导杆式柴油打桩锤及蒸汽锤落锤采用最后十锤的平均值。

For the can - pile machine whose hammer has big energy, we take the average of last three hits as its last entrance;but for the lever - pile machine or the steam - pile machine, we take the average of last three hits as its last entrance; but for the lever - pile machine or the steam - pile machine, we take the average of the last ten hits as its last entrance