Segment structure of shield tunnel making use of a prestressed steel wire and segment lining method fixing the segment therewith

摘要

The present invention provides a fastening structure and further increases the rigidity while fixing the wire in a line instead of a point fixation so that the joint of the segment ring assembly of the shield tunnel does not open during the integral operation of the shield tunnel. Its purpose is to make it simple and easy to assemble and to make efficient rehabilitation, and to make the material less economical. The longitudinal joint (JL) of the segment ring assembly is fixed and tightly fixed by prestressed steel wire and the circular arc (JC) of the segment by a turnbuckle to increase rigidity, and is reinforced in the rigid reinforcement groove and the turnbuckle groove. It is a constitution in which the rigidity is further added and connected to each other. Since the longitudinal junction JL of the segment ring assembly 20 is fixed in a long line by the prestressed steel wire, the behavior of the shield tunnel is integrated without opening the longitudinal junction JL of the segment ring assembly. It is an invention having a useful effect that not only is maintained but also the behavior of the shield tunnel further strengthened by stiffening by connecting and reinforcing the turnbuckle and the main reinforcing bar.