Noise and vibration free pile driving and longitudinally divided slidable cylinder used in the same and unit divided cylinder piece
专利汇可以提供Noise and vibration free pile driving and longitudinally divided slidable cylinder used in the same and unit divided cylinder piece专利检索，专利查询，专利分析的服务。并且PURPOSE: To permit a compact construction-equipment to drive a foundation pile by a noise and vibration free pile driving in which concrete is placed in the wall constructed by successively pushing divided pieces of a circular cylinder comprising longitudinally divided pieces into a ground one at a time.
CONSTITUTION: A circular cylinder 1 comprises a plurality of divided-well pieces P, Q, R and S looking like the pieces obtained by longitudinally dividing a conventional circular tube. Moreover, the cylinder 1 is constituted by axially connecting a plurality of unit divided cylinder pieces 2, each lowest one of which is provided with a bent edge 13. The cylinder 1 is constructed as, a shallow hole 201 having a diameter smaller than the cylinder 1 is excavated by using an auger, and the unit divided pieces PWS are pushed into the hole 201 one at a time. Then the hole 201 is further excavated, and the unit divided pieces PWS are pushed one upon another, which is successively repeated. After the cylinder 1 is driven in, the auger is drawn out, and as concrete is being placed, the cylinders 1 are successively drawn out by the operation by the procedure in a seversed sequence as stated above.
COPYRIGHT: (C)1981,JPO&Japio，下面是Noise and vibration free pile driving and longitudinally divided slidable cylinder used in the same and unit divided cylinder piece专利的具体信息内容。
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