Tunnel deformation monitoring system and method based on digital photogrammetry technology

Abstract

The invention discloses a tunnel deformation monitoring system and method based on digital photogrammetry technology. A camera clustering device is fixed to a camera rail device and used for collecting tunnel images. The camera rail device is installed above a cable of a tunnel wall. The camera rail device comprises a camera rail and a robot. The robot is installed on the camera rail. The camera clustering device is fixed to the robot. A data output end of the camera clustering device is connected with a data input end of a data server through an information transmission device. An output endof an application end is connected with a control end of the robot through an information transmission device. The application end is used for transmitting an output control instruction to the robot to adjust the running state of the robot. The data server is connected with the application end through the information transmission device. The application end is used for analyzing data of the tunnelimages to obtain the monitoring result of tunnel deformation. The deformation of a tunnel can be monitored in real time, and the monitoring efficiency is improved.

Description

technical field [0001] The invention relates to the field of tunnel monitoring, in particular to a tunnel deformation monitoring system and method based on digital photogrammetry technology. Background technique [0002] The conventional tunnel deformation monitoring method is a non-contact measurement method based on the free station setting of the total station, and the control points are arranged according to the observation requirements of the cross-section, and the measurement accuracy can reach within 1mm. This method can realize non-contact measurement, and can obtain three-dimensional information of point changes. However, the requirements for the current environmental conditions are high, and the control points are mostly on the cave walls on both sides, which are easily disturbed. The actual observation time is long, the data processing is slow, and often conflicts with construction operations, and the number of deformation points that can be monitored is limited,...

AI Technical Summary

Problems solved by technology

For the grouting reinforcement inside and outside the tunnel, changes in the grouting pressure will have an impact on the tunnel within a few minutes. Monitoring is difficult to meet the requirements of real-time monitoring and monitoring. Therefore, for the situation where the monitoring frequency is high, it is difficult for total station monitoring to meet the monitoring requirements.

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