| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an enlargement confirmation device and an enlargement confirmation method of an enlarged bottom member, capable of confirming whether or not the enlarged bottom member of a pile is enlarged inside a hole bottom enlarged part. <P>SOLUTION: An enlargement confirmation device S of an enlarged bottom member 1 is for confirming whether or not the enlarged bottom member 1 provided on a lower end of a pile 14 is enlarged to a radial direction outer side, and includes: a wire 20 whose one end part 20a is connected to an enlarged bottom plate 5 of the enlarged bottom member 1 and other end part 20b is extended through a hollow part 14a in the axial direction of the pile 14 to an upper end of the pile 14; and measuring means 30 to which the other end part 20b is connected and which measures a downward movement amount P of the other end part 20b. <P>COPYRIGHT: (C)2012,JPO&INPIT |
