| 摘要 |
PROBLEM TO BE SOLVED: To provide an immersion method for a pile and its device capable of making an amount of earth moving to the ground into almost zero without using a special pile having a fluid supply pipe in the thickness of a concrete pile. SOLUTION: A friction cutter 110 and a cutter edge disc 60 closing an opening of the lower end of the pile is provided on the lower end of the pile 100, and an auger drill 40 consisting of an engaging section engaging with the disc 60, a spiral wing 41 and a driving section 30 giving rotation different from the pile and thrust force is inserted in a hollow hole of the pile, the pile 100 and the auger drill 40 are integrally rotated to drive the pile forward in the ground in a soft ground, and the auger drill 40 is preceded to perform a downward ground excavation from the lower end of the pile to make earth and sand only put in the pile 100 to consolidate it in the pile. COPYRIGHT: (C)2004,JPO&NCIPI
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