Tunnel supporting structure with locating and alarming function

The invention discloses a tunnel supporting structure with a locating and alarming function. The structure includes an arched roof, the lower portion of the arched roof is fixedly connected with a triangular support frame, the upper portion of the arched roof is provided with a folded embedded cross beam, and a connection frame is arranged between the folded embedded cross beam and the arched roof, the two sides of the upper surface of the triangular support frame are provided with door-shaped brackets, the upper surface of each door-shaped bracket is provided with a pressure sensor, the uppersurface of each pressure sensor is fixedly connected with an arc-shaped bearing plate, and the upper surface of the each arc-shaped bearing plate is in jointed with the surface of the inner side of the arched roof in a lapping mode. The structure has the advantage that the structure can well support the inside of a tunnel, when partial collapse accidents occur in the tunnel, the device uses the sensor for sensing, information of locations where the partial collapse accidents occur in the tunnel is sent to a tunnel maintenance department, an alarm is given, and work personnel can know the accidents and carries out maintenance at once.