PURPOSE: To permit the driving of large-size piles in a wide range even by small-sized temporary platform by a method in which a girder is mounted on the platform a temporary pier and the platform are combined, and loads on a casing pipe are supported by the temporary pier and the platform.
CONSTITUTION: A temporary pier 17 is set on the seabed in close proximity to a small-sized platform 1 set on the seabed where pile is to be driven, a movable girder 7 is mount on the platform 1, and a turning stand 10 supporting a movable pile-driving tower 13 is provided to the upside of the girder 7. The girder 7 is projected on the side of the platform 1, the leg of a girder receiving jack 9 attached to the girder 7 is extended and fixed to the temporary pier 17, and the turning stand 10 is also extened. Then, loads on the casing pipe are supported by the platform 1 and the temproary pier 17, and the casing pipe is erected.
KIKUCHI KENJI
HIKITA MINORU
YOSHIDA YASUHISA
SHIMAI MORIYUKI
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