METHOD AND STRUCTURE OF CONNECTING FIBER-REINFORCED PILING FOR SHIELD EXCAVATION

摘要

PROBLEM TO BE SOLVED: To provide a method and structure of connecting fiber-reinforced pilings for shield excavation to constitute a fiber-reinforced concrete wall in which on-site connection workability can be improved, and further the connection structure obtained after the connection can be cut by a shield machine, and also the fragmentation of such as FRP reinforcing bars can be promoted.;SOLUTION: An upper side piece 1A positioned on an upper side has an upper side connection area Ha with FRP grid reinforcements 5 for reinforcement exposed to a lower end part, and a lower side piece 1B positioned on a lower side has a lower side connection area Hb with the FRP grid reinforcements 5 for reinforcement exposed to an upper end part. FRP grid reinforcements 50 for connection are adaptively overlapped so as to be overlapped on the FRP grid reinforcements 5 for reinforcement with exposed lower end part of the upper side piece 1A, and the grid reinforcement 5 for reinforcement with exposed upper end part of the lower side piece 1B. A forming frame 60 is mounted by enclosing the upper side connection area Ha of the upper side piece 1A and the lower side connection area Hb of the lower side piece 1B, a coating material 20 is placed in the forming frame, and the coating material is solidified.;COPYRIGHT: (C)2015,JPO&INPIT