Total station instrument based subway tunnel deformation automatic monitoring method and device

Abstract

The invention relates to a total station instrument based subway tunnel deformation automatic monitoring method and device. The total station instrument based subway tunnel deformation automatic monitoring device comprises a data acquisition module, a core control module and a data communication module, wherein the core control module is connected with the data acquisition module through the data communication module. When the total station instrument is levelled, the core control module calculates space position information parameters of observation stations and a turning reference point with given point coordinates serving as a reference coordinate system due to the observation of a given point circular prism located in a stability area and a 360-degree prism of the turning reference point located in a deformation area, three-dimensional coordinates of a to-be-measured point are measured after observation station positioning parameters are updated, coordinates under a reference coordinate system are obtained after coordinate conversion is performed on the measured coordinates of the observation stations, and absolute coordinates of to-be-measured target points are obtained under the reference coordinate system. Compared with the prior art, the total station instrument based subway tunnel deformation automatic monitoring device has the advantages of greatly saving manual costs, improving the data reliability, allowing monitoring of the tunnel in real time at full day.

Description

technical field [0001] The invention relates to a subway tunnel deformation monitoring technology, in particular to an automatic monitoring method and device for subway tunnel deformation based on a total station. Background technique [0002] In recent decades, due to the traffic pressure brought by the expansion of urban population, major cities in my country are vigorously developing the construction of subway tunnels. From the beginning of construction to the completion of the subway project, especially after the completion of the entire operation period, continuous deformation is required. monitor. In order to ensure the safety of subway operation, it is necessary to obtain real-time monitoring content such as settlement, displacement, deflection, and track smoothness in the tunnel, and the monitoring instruments and technical methods used are also different. At present, the most used method is manual measurement, mainly including wire measurement, geometric leveling, e...

AI Technical Summary

Problems solved by technology

In tunnel monitoring, due to limitations such as narrow observation angles, it cannot be widely used on the basis of a single automatic total station. At present, only a single automatic total station can be used to monitor the local deformation of the tunnel.

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