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    • 5. 发明专利
    • CONSTRUCTING METHOD FOR UNDERGROUND PILE
    • JPS57180716A
    • 1982-11-06
    • JP6495181
    • 1981-04-28
    • YAMAMOTO MINORUKUBOTA LTD
    • YAMAMOTO MINORUNAKANISHI IWAOOOKI KENJITAKAOKA TSUTOMUKANAMORI MASASHI
    • E02D5/44E02D5/50E02D7/00
    • PURPOSE:To disperse load applied to a cylinder and to obtain a high support strength against an underground pile, by a method wherein a projection is formed on an inner peripheral surface of a forward end of an underground pile, and a cured substance, into which an implanting curing material is cured, and the cylinder are monolithically united through the projection. CONSTITUTION:A cylinder 1 for an underground pile and an earth auger 3, positioned at the inside of the cylinder 1, are individually turned to insert the forward end of the cylinder 1 to a given depth. Then, while the earth auger 3 is being pulled slightly inward from the forward end of the cylinder 3 through reverse-turning of the earth auger 3, a curing material (a) is implanted by pressure into the pulling hole through the center hole in the earth auger 3 to consolidate a ground therearound, and simultaneously, the curing material (a) is penetrated into the ground therearound. The curing material (a) is further penetrated in the ground around a projection 2 on the cylinder 1, and after cured, the cured substance, into which the curing material (a) is cured, is monolithically united with the forward end of the cylinder 1 through the medium of the projection 2 to build a bulb B for an underground pile.