how to build on-site construction pile of construction equipment and field construction pile

摘要

PROBLEM TO BE SOLVED: To provide a construction device for an on-site constructed pile which enables repeated use of an excavation head to reduce cost for construction work of the on-site constructed pile, and a construction method for the on-site constructed pile using the construction device.;SOLUTION: An excavation head 7 formed by integrating a plurality of divisible parts is fitted to the lower end of a hollow excavation rod 6, and a pile hole is excavated in the ground by the excavation head 7. When the excavation rod 6 reaches a predetermined depth in the ground, the inside of the excavation rod 6 is filled with a pile material C. Subsequently, when the excavation rod 6 is raised, the excavation head 7 falls off from the lower end of the excavation rod 6 to discharge the pile material C into the pile hole. At this time, the excavation head 7 is separated into a plurality of parts, which are lifted in the pile material C filled into the pile hole by wires according to rising of the excavation rod 6, and recovered on the ground.;COPYRIGHT: (C)2013,JPO&INPIT