PILE SUPPORT STRUCTURE, AND METHOD FOR REINFORCING PILE SUPPORT PART

摘要

PROBLEM TO BE SOLVED: To provide a pile support structure which improves the bearing capacity of a bearing layer supporting a pile, and a method for reinforcing a pile support part. ! SOLUTION: A pile support structure 10 comprises: a pile 12 of which tip 12F is supported by a bearing layer 14; and a soil improvement body 20 formed under the bearing layer 14. The bearing layer 14 supports the pile 12 by a pile tip bearing capacity Rp1 generated by the bearing layer 14. The soil improvement body 20 supports the bearing layer 14 by a soil improvement body bearing capacity Rp2 generated by the soil improvement body 20. A bearing layer lower ground 18 under the soil improvement body 20 supports the soil improvement body 20 by a bearing layer lower ground bearing capacity Rp3 generated by the bearing layer lower ground 18. The soil improvement body bearing capacity Rp2 and the bearing layer lower ground bearing capacity Rp3 are higher than the pile tip bearing capacity Rp1 (Rp1