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NOISE AND VIBRATION FREE PILE DRIVING AND LONGITUDINALLY DIVIDED SLIDABLE CYLINDER USED IN THE SAME AND UNIT DIVIDED CYLINDER PIECE
NOISE AND VIBRATION FREE PILE DRIVING AND LONGITUDINALLY DIVIDED SLIDABLE CYLINDER USED IN THE SAME AND UNIT DIVIDED CYLINDER PIECE
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机译:相同和单元划分的汽缸件中使用的噪声和振动自由桩驱动和纵向划分的可滑动缸
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摘要
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 P-S are pushed into the hole 201 one at a time. Then the hole 201 is further excavated, and the unit divided pieces P-S 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.
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