| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction method using a scaffold for placing in which it is unnecessary to perform any scaffold welding work in a narrow place where concrete is placed, and handling property is excellent, leading to improved operability and shortened process.SOLUTION: A construction method for forming a support foundation by placing concrete between the lower part of a structure 2 constructed by drilling a bedrock 1 and the bedrock 1 includes: a first process of installing a plurality of scaffold sets 10 in each of which scaffold boards 12 with predetermined height are disposed on frames 11 constituted by connecting a plurality of vertical reinforcements 11a in a vertical direction and horizontal reinforcements 11b in a horizontal direction by joint members 11c in any flat ground other than a drilling region; a second process of suspending the scaffold sets 10 and carrying-in and aligning them in the placing region of concrete; a third process of placing and solidifying concrete until the lower part of the scaffold boards 12 of the scaffold sets 10 carried in by the second process, then removing the scaffold boards 12, and backfilling the frames 11 by further placing; and a forth process of repeating the second process and the third process until the drilling height is filled up, and performing multi-level backfilling to form a support foundation. |
