Coupling device null of the earth finishing blow panel in excavation construction method

摘要

PROBLEM TO BE SOLVED: To provide a joint device of earth retaining panels capable of inserting a joint pin from one side of the earth retaining panels and fixing the joing pin to the earth retaining panels in the same side.;SOLUTION: In cut and cover tunneling method, etc., a joint pin 41 is inserted into linking holes 22 and 24 of fitting sections 21 and 23 of two earth retaining panels 11 connected to each other to connect both of them, and a joint device is so constituted that the joint pin 41 is in a loose prevention state against the earth retaining panels 11 in an insertion side. Then, it is constituted of a holding section 31 positioned on both sides of the linking hole 22 of the fitting section 21 provided to one earth retaining panel 11 to project from the surface and, at the same time, having a loose prevention hole in the side section, the joint pin 41 having a through hole 43 linking with the loose prevention hole of the holding section 31 when it is inserted into the linking hole 22 and an interlocking member 44 inserted into the loose prevention hole of the holding section 31 and through hole 43 of the joint pin 41 and mounted to the holding section 31.;COPYRIGHT: (C)2000,JPO