Tunnel health detection apparatus without affecting tunnel operation

Abstract

The invention discloses a tunnel health detection apparatus without affecting tunnel operation. The apparatus comprises a detector, and the detector is arranged on a tunnel arch buttress (1). The detector is arranged on the tunnel arch buttress, so detection work enforcement has no influences on the normal operation of a tunnel. A high speed camera walks on a bearing track and shoots the photograph of the tunnel arch buttress, and image analysis is carried out to realize non-blind area tunnel crack detection. A range finder is arranged on the bearing track, the tunnel arch buttress is provided with a target bar paralleling to the bearing track in the radial direction and attached to the surface of the tunnel arch buttress, the range finder walks on the bearing track to detect a distance from the target bar to the range finder in real time, and distance transformation analysis is carried out to realize non-blind area tunnel deformation detection. The detector is arranged on the arch buttress of the side edge area at two sides of the tunnel, so in the detection process, even the detector carelessly falls, the detector does not fall to the pavement, and does not affect the normal operation of the tunnel, thereby the hidden safety trouble is reduced.

Description

technical field [0001] The invention relates to a tunnel health detection device which does not affect tunnel operation. Background technique [0002] With the increasing number of highways, railways, and urban rail transit projects, more and more tunnel projects are used, and tunnels have high engineering requirements during construction, especially in terms of construction technology, support requirements and deformation. . Tunnel crack and deformation monitoring and control are very important contents in the tunnel construction process and subsequent tunnel maintenance process. How to accurately detect tunnel cracks and deformation is a hot and difficult point that engineers have always been concerned about. [0003] Traditional tunnel health detection devices have the following defects: [0004] (1) At the present stage, the health inspection of most tunnels adopts manual detection method, which requires engineering inspection personnel to place the detector at a desig...

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Problems solved by technology

[0004] (1) At the present stage, the health inspection of most tunnels adopts manual detection method, which requires engineering inspection personnel to place the detector at a designated location for detection, which is extremely low in work efficiency, and for large tunnels, the manual detection method is too heavy. high labor cost

In addition, the manual inspection method requires engineering inspectors to work in the tunnel, which has great potential safety hazards

[0005] (2) In order to improve the detection efficiency and reduce the detection cost, some tunnel health intelligent detection equipment has appeared on the market. However, the traditional tunnel health intelligent detection equipment adopts the method of installing detectors on the tunnel road surface, and the detection work must be stopped in the tunnel. It can only be carried out at a certain time, which affects the normal operation of the tunnel

In order not to affect the normal operation of the tunnel, some tunnel health detection devices adopt the method of digging the track on the tunnel road surface. Although this detection method can reduce the impact on the tunnel operation, the cost is high, and the excavated track is prone to water accumulation. adverse effect on the detector

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