METHOD FOR CONSTRUCTING BEARING PILE

To provide a method for constructing a bearing pile which can simply perform an installation work of a horizontal sheathing to the bearing pile.SOLUTION: A method for constructing a bearing pile includes: a step of and excavating a ground G and forming an excavation hole 6, injecting a bubble generating agent and cement milk into the excavation hole 6, and forming a columnar body 2 of foam cement 3 containing a mixed body of sediment generated accompanied by the excavation, the bubble generating agent, and the cement milk; a step of stirring and mixing the cement milk with the foam cement 3 while injecting the cement milk having a high cement percentage content higher than that of the cement milk to a predetermined depth not reaching the upper end of the excavation hole 6 from the lower end of the excavation hole 6 before solidifying the foam cement 3, and replacing the foam cement 3 on the lower end of the columnar body 2 with soil cement 4 composed of the mixed body of the cement milk having the high cement percentage content and the foam cement 3; a step of inserting a steel material 5 reaching the bottom of the columnar body 2 before solidifying the foam cement 3 and the soil cement 4; and a step of solidifying the foam cement 3 and the soil cement 4.SELECTED DRAWING: Figure 1 【課題】支持杭への横矢板の設置作業を簡便に行うことが可能な支持杭の施工方法を提供する。【解決手段】地盤Ｇを掘削して掘削穴６を形成し、その掘削穴６に気泡生成剤とセメントミルクを注入して、掘削に伴って生じた土砂と気泡生成剤及びセメントミルクの混合体を含む発泡セメント３の柱状体２を形成する工程と、発泡セメント３の固化前に、前記セメントミルクよりもセメント含有率が高いセメントミルクを掘削穴６の下端から掘削穴６の上端に至らない所定深さまで注入しつつ、このセメントミルクを発泡セメント３と撹拌混合して、柱状体２の下端の発泡セメント３を、セメント含有率が高いセメントミルクと発泡セメント３の混合体からなるソイルセメント４で置換する工程と、発泡セメント３及びソイルセメント４の固化前に、柱状体２の底部に至る鋼材５を挿入する工程と、発泡セメント３及びソイルセメント４を固化させる工程と、を有する構成とする。【選択図】図１