| 摘要 |
PROBLEM TO BE SOLVED: To provide a foundation pile structure capable of soundly and smoothly transmitting a load, when connecting a steel pipe pile and an SC pile. SOLUTION: This SC pile 2 having bending yield strength larger than the steel pipe pile 1, is joined as an upper pile to an upper part of the steel pipe pile 1 as a lower pile. One stage or a plurality of stages of projections 2c are arranged in an inner peripheral surface lower part of a steel pipe 2a constituting the SC pile 2. A vertical load transmitted by being shared by a concrete 2b part of the SC pile 2, is gradually transferred to the steel pipe 2a side via the projections 2c in the vicinity of a joining part of the steel pipe pile 1 and the SC pile 2 suddenly changing in a cross section, and is stably transmitted to the steel pipe pile 1 as the lower pile. COPYRIGHT: (C)2008,JPO&INPIT
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