節付き場所打ちコンクリート杭の鉛直支持力特性に関する模型実験

概要

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The development of cast-in-place concrete pile with nodes is thought to be useful for the increase of bearing capacity and economizing of resources. The results of loading tests using model piles of this kind are reported in this paper. The model piles were set up in dense dry sand layer and loaded in vertical direction. The relationship between the bearing capacity and geometrical configuration of nodes was examined in the experiment. It was found that at an identical length of piles and diameter of piles and nodes, the increase in space between nodes resulted in the reinforcement of bearing capacity with some limitations. This means that when the spacing of nodes is small, the soil around the outer diameter of node is sheared and the soil mass between the neighboring nodes moves together with pile shaft.
一般社団法人日本建築学会の論文
2002-03-20