GROUND REINFORCING METHOD USING RECYCLED PLASTIC PILE, AND COMPOSITE FOUNDATION

摘要

PROBLEM TO BE SOLVED: To provide a ground reinforcing method using recycled plastic piles that can make effective use of resources and acquire required bearing power without uselessly increasing or enlarging piles. SOLUTION: The piles 1 are allowed to penetrate the ground 9 to reinforce the ground 9 and to construct a composite foundation 3 that obtains bearing power with both the piles 1 and a spread foundation 2. The pile 1 is made of solid recycled plastic. The long-term ground contact pressure N of the foundation is determined, and the long-term allowable bearing unit capacity qraof the reinforced ground is obtained by an expression qra=(1/3)[qd-1.6(Pd/A)]. A load foundation area A per pile in which a relationship between the long-term allowable bearing unit capacity qraand long-term ground contact pressure N satisfies N≤qra, and pile ultimate bearing power Pdare determined. The composite foundation 3 satisfying the determined load foundation area A and pile ultimate bearing power Pdis constructed. COPYRIGHT: (C)2010,JPO&INPIT