A STEEL PILE-STRUCTURE AND WORKING METHOD OF STEEL PILE

摘要

The steel pile structure comprises a steel pipe (1), a bore piling tip member (2) slidably free-fitted into the bottom bore of the steel pipe and an aux. striking pipe (3) which is slidably inserted into the tip member through the inside of the steel pipe and delivers the striking energy from a top spacer to the tip member; the top spacer covering the top ends of both the steel pipe and the aux. striking pipe and being struck by a hammer. The piling tip member is formed by welding a thick steel plate to one end of a steel pipe piece having an outer diam. smaller than the inner diam of the steel pipe. The tip member may be piled deeper than the steel pipe and filled with concrete mixture after removing the aux. striking pipe.