PACKER TYPE CONTINUOS UNDERGROUND WALL COUPLING AND METHOD OF EXECUTING COUPLING PART THEREBY

摘要

PROBLEM TO BE SOLVED: To perform the placement of site placing concrete positively by setting packer mortar placing pipes on either surface of an H-steel having connection members to be connected with coupling parts on the flange ends, securing packer-sheet attachment members on both the ends of the flanges, fastening the packer-sheets thereon in a bag-shaped fashion, and forming placing control communication pipes within the flanges. ;SOLUTION: A continuos packer-type ground wall joint J is connected to the coupling part of a box-type steel sheet pile via connection parts 11 to subsequently be built in an earth excavation ditch by a crane. Next, while controlling the top end by pipings 17, continuous placement of mortar is implemented by a pump in the ground from packer mortar placing pipings 13 via pouring pipes. Then, the placement pipings 13 are pulled up in accordance with the placement situation and cut by its upper part. Placement is executed to the top end so that placement is completed to the coupling parts. Mortar serves to push and expand the packer sheets 16 in order that concealment is done in conformity with the ground configuration of an earth excavation ditch. Thus, placement of site placing concrete can be effected positively.;COPYRIGHT: (C)1998,JPO