SAFETY NET FOR DIAGNOSING SAFETY OF THE INNER PART OF TUNNEL, CHECKING DEFORMATION IN REAL TIME CAUSED BY CRACK AND PREVENTING DROP OF FREEZING ICE GENERATED BY WATER LEAKAGE

摘要

Purpose: a catch net, the safety of the inner part for diagnosing a tunnel, the safety for being usefully arranged to improve tunnel install catch net in tunnel, by checking that deformation easily maintains tunnel in real time. Construction: catch net, for diagnosing the safety of the inner part in a tunnel, the ceiling in a tunnel is mounted to prevent the decline of the freezing ice generated by leak, it is made of the mesh body (10) that can be easily deformed, the gap that can connect and fix the top on mesh body (10) and both sides is fixed unit (12), installation/it is connected to the detecting switch unit (16) for transmitting the same intervals between the front and rear gap fixed unit (12) on the top for being installed in mesh body for detecting signal to an additional data collecting system (14), after detecting the change by the initial installation state of Operation switch. One switch rod (18), which is inserted into detecting switch unit (16), automatically to be transmitted the ceiling in tunnel and is deformed to data gathering system (14). A connecting rod (20) for detecting switch unit (16) be it is fixed/connect with gap fixed unit (12).