How to build a composite foundation pile and composite foundation pile

摘要

PROBLEM TO BE SOLVED: To make a combined footing pile effectively efficacious by sufficiently securing the joint strength of a joint part between a steel pipe pile constituting the combined footing pile and a cast-in-place pile.;SOLUTION: There is provided a combined footing pile 10 formed by uniting a steel pipe pile 20 and a cast-in-place pile 30 prepared therebelow. The cast-in-place pile 30 has a node part 34 formed to partially have an increased pile diameter, a joint steel pipe 40 is inserted into the steel pipe pile 20 from its lower end, and concrete is charged in the joint steel pipe 40 and between the joint steel pipe 40 and steel pipe pile 20.;COPYRIGHT: (C)2013,JPO&INPIT