To miniaturize a crane and reduce the running cost by lifting up a divided reinforced cage single body by a crane, evenly supporting it from both sides by use of a plurality of winches, and erecting a continuous reinforced cage in a vertical hole.
A divided reinforced cage single body 4a is lifted up by a crawler crane 7, and supported from both side by use of two hydraulic winches 8. As each hydraulic winch 8, a tandem type chain is used, and a mounting jig 9 to be engaged with a erecting jig is provided on the tip thereof. The erecting is welded to the divided reinforced cage 4a. The divided reinforced cage single body 4a is lowered to a vertical hole 3, and a stirrup is inserted to support it. Then, a divided reinforced cage single body 4a to be joined is lifted up and moved, the opposed end parts of each divided reinforced cage single body 4a are welded and integrally connected. Thereafter, the stirrup is pulled out and lowered. The same procedure is repeated, and erecting of a continuous reinforced cage is ended. Thus, the crane can be miniaturized, and the working property can be improved.
MOMIYAMA MASAHIRO
OGI YUTAKA
KOJIMA RYUSUKE
SUZUKI AKIRA
KABUTOMORI TAKAHIKO
SAKON TETSUJI
TONE GEO TECH CO LTD