SOUND BARRIER TUNNEL LOGITUDINAL DISTANCE CONTROL DEVICE

摘要

The present invention relates to a longitudinal distance control device of a sound barrier tunnel capable of controlling a distance between upper horizontal posts (10) by rotating a connection part and includes: a distance controlling bolts (13-1) which is inserted into a hole formed on a longitudinal web of a first horizontal post and fixed to an upper horizontal post by a nut (13-5) when a frame is installed in a sound barrier tunnel blocking traffic noise; turnbuckles (13-2) which are rotated and then coupled in the lengthwise direction opposite from that of the fixed nut (13-5) and distance control bolt (13-1); a second horizontal post facing the first horizontal post in the longitudinal direction which corresponds to the first horizontal post by coupling the distance controlling bolt (13-1), the nut (13-5), and the turnbuckle (13-2) in the same manner; and a tension cable (13-4) which is cut to have an optimal distance between the turnbuckles (13-2) in the direction corresponding to the first horizontal post and the second horizontal post and which is coupled to both ends of turnbuckles using hinge bolts (13-3). The longitudinal distance control device of a sound barrier tunnel can control a distance between the horizontal posts (10) of a sound barrier tunnel in a site and simplify the large longitudinal beam of the sound barrier tunnel. According to the present invention, when the sound barrier tunnel is installed, the longitudinal distance control device of a sound barrier tunnel replaces the unnecessarily large longitudinal beam (12-1) to reduce an expensive material, thereby reducing construction costs. Also, the longitudinal distance control device of a sound barrier tunnel can reduce construction period and can be easily maintained by expanding an active length for controlling the distance of the longitudinal beam (12-1) to solve a problem of the sound barrier tunnel.