UNDERGROUND STRUCTURE CONSTRUCTION METHOD USING THE CUTTING CHANNEL

摘要

The present invention relates to an underground structure construction method which removes a protection loop disposed on a construction point beforehand by pulling or driving a reinforced concrete frame enclosure to the construction point, which is capable of pulling the enclosure with small pulling power while prevents the deformation of the upper ground occurring in the process of pulling the enclosure, and which comprises: a step of forming a complex pipe by attaching a cutting channel member including a roller means inside to a square pipe; a step of forming a loop by pressing multiple complex pipes to the ground; a step of adjusting the height of each roller means so that the horizontal surface formed by the bottom sides of each roller means corresponds to the outer surface of the enclosure needed for being pulled; a step of separating the square pipe and the cutting channel member from the complex pipe; a step of pulling the enclosure while the cutting channel member pushes the separated square pipe; and a step of grouting the internal space formed in between the outer surface of the enclosure and the cutting channel member.