CONSTRUCTION METHOD OF A SEGMENTAL PRECAST CONCRETE ARCHED TUNNEL WITH HINGES

摘要

PURPOSE: A construction method of a precast concrete arch tunnel having a hinge joint is provided to dissolve the partial stress concentration on a hinge joint and to apply more stably by minimizing the tolerance occurred while manufacturing and assembling a hinge joint. CONSTITUTION: A construction method of a precast concrete arch tunnel having a hinge joint comprises the steps of: manufacturing a pair of side wall members(10), a ceiling member(20) and a hinge joint, and moving to a job site; coupling a play formation material(110), which form a space for rotating two joint surfaces smoothly, to a joint surface of the hinge joint formed on one of the side wall members or the ceiling member; applying a surface formation material(120) on a joint surface, which is not coupled with a play formation material, among the joint surface of the side wall members or the joint surface of the ceiling member; and putting the ceiling member on a pair of the side wall members and hardening the surface formation material in the corresponded shape to the play formation materials, and then removing the surplus surface formation material extruded to the outside of the hinge joint.