Subway tunnel crack depth measuring device

Abstract

The invention discloses a subway tunnel crack depth measuring device, which comprises a supporting plate, a plurality of mounting holes are formed in the upper surface of the supporting plate, measuring rods are slidably connected in all the mounting holes, and all the measuring rods are arranged in an array; square through grooves are formed in one sides of the two elastic frame plates, sliding rods are slidably connected into the two square through grooves, the outer circles of the sliding rods are rotatably connected with a plurality of first rotating wheels, the outer circles of all the first rotating wheels are fixedly connected with a plurality of first springs, and one ends of all the first springs are fixedly connected with second rotating wheels. Through cooperation of the measuring rod and the second rotating wheel, the second rotating wheel pushes the measuring rod to enter the crack to abut against the upper wall of the crack, the shape of the crack and the depth of each part of the crack can be judged according to the height change of the measuring rod on the upper surface of the supporting plate, and the crack is filled with a repairing material according to the depth of the crack; the repairing material is filled blindly, so that the repairing material overflows due to excessive quantity, and resources are wasted.

Description

technical field [0001] The invention belongs to the field of tunnel crack depth measurement, in particular to a subway tunnel crack depth measurement device. Background technique [0002] The construction of urban rail transit has great significance in promoting the alleviation of traffic congestion and the development of urban economy. At this stage, most first-tier and second-tier cities in my country have begun to operate multiple subway lines, which has promoted the development of public transportation. However, under the combined effect of many factors, cracks often appear in the subway tunnel structure, which affects the safe operation of the subway. People need to pay full attention to it and actively take measures to deal with it. [0003] When repairing cracks in subway tunnels, since the cracks are located on the inner wall of the tunnel, it is difficult to obtain information such as the depth, shape, and size of the cracks. There is too much repair material, whi...

AI Technical Summary

Problems solved by technology

However, under the combined effect of many factors, cracks often appear in the subway tunnel structure, which affects the safe operation of the subway. People need to pay full attention to it and actively take measures to deal with and solve it.

[0003] When repairing cracks in subway tunnels, since the cracks are located on the inner wall of the tunnel, it is difficult to obtain information such as the depth, shape, and size of the cracks. Too much patching material, which overflows and falls, wasting patching material

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