Non-contact measuring device for automatically detecting regular surface deformation

Abstract

The invention relates to a non-contact measuring device for automatically detecting regular surface deformation. The device comprises a laser measuring device and a controller, wherein the laser measuring device comprises a mesh laser emitter and image acquisition equipment, and the mesh laser emitter and the image acquisition equipment are both arranged on the opposite sides of a to-be-measured regular surface and are both connected with the controller; the mesh laser emitter is used for emitting mesh laser to the direction of the regular surface to be measured; the image acquisition equipment is used for shooting a laser projection picture of the regular surface to be measured and transmitting the obtained laser projection picture to the controller; and the controller is used for comparing the obtained laser projection picture with a pre-stored standard picture to judge whether the regular surface is deformed or not. According to the invention, the deformation of a shield shell can be detected at the initial deformation stage of the shield shell.

Description

technical field [0001] The invention relates to the technical field of regular surface deformation detection, in particular to a non-contact measuring device for automatic detection of regular surface deformation. Background technique [0002] Shield shell deformation refers to the phenomenon that the shield shell is deformed by the comprehensive action of internal and external forces during the excavation process of the shield machine. The deformation of the shield shell during the construction process will cause the range of attitude adjustment of the shield machine to become smaller. The deformation of the shell will also lead to serious consequences such as the rupture of the tail brush of the shield, the gushing of water and mud, and the fragmentation of the pipe ring. [0003] Although other technologies of the shield are very mature, there is no application of new technology for the deformation detection of the shield shell. At present, there is no daily and regular ...

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Problems solved by technology

[0003] Although other technologies of the shield machine are very mature, there is no application of new technology for the detection of deformation of the shield shell

At present, there is no daily and regular inspection during the tunneling process of the shield machine, and the inspection is only based on human eye observation, and the deformation of the shield shell is not easy to observe in the early stage. When the human eye can find that the shield shell has already undergone a large deformation

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