Tunnel deformation automatic monitoring system based on inclination angle and reference point position compensation

Abstract

The invention discloses a tunnel deformation automatic monitoring system based on inclination angle and reference point position compensation, which comprises a power supply, a data acquisition system, a data transmission system, a data storage system and a data operation and access system, and is characterized in that the data acquisition system comprises a plurality of inclination angle measuring devices, a target and image acquisition equipment; a plurality of inclination angle measuring devices are connected end to end and installed on a tunnel lining in series, a target is fixed at one end of the device, image acquisition equipment is fixed outside a tunnel opening, the image acquisition equipment outputs displacement data of the target by identifying the target, and the inclination angle measuring devices output inclination angle and device length data. The data transmission system transmits data monitored by the image acquisition device and the inclination angle measuring device to the data storage system for storage, the data operation and access system calculates the displacement of each point of the tunnel lining according to the data monitored by the inclination angle measuring device, and error compensation is carried out by utilizing the displacement data of the target. And the deformation condition of the tunnel section is reflected through the remote client.

Description

technical field [0001] The invention relates to the field of tunnel construction engineering, in particular to an automatic monitoring system for tunnel deformation based on inclination angle and reference point position compensation. Background technique [0002] At present, the deformation monitoring method of mountain tunnels is mainly through manual monitoring, that is, using convergence rulers, total stations and other equipment to measure the "monitoring points" of the tunnel section. This traditional monitoring method is inconvenient to operate the equipment, and the monitoring data is intermittent. , has many limitations, and cannot carry out long-term automated monitoring. In addition to the traditional manual monitoring methods, there are also automatic monitoring methods such as automatic total station, laser ranging method, and photogrammetry monitoring method. Although these methods can realize automatic continuous measurement, the number of monitoring points ar...

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Problems solved by technology

[0002] At present, the deformation monitoring method of mountain tunnels is mainly through manual monitoring, that is, using convergence rulers, total stations and other equipment to measure the "monitoring points" of the tunnel section. This traditional monitoring method is inconvenient to operate the equipment, and the monitoring data is intermittent. , has numerous limitations and cannot perform long-term automated monitoring

In addition to the traditional manual monitoring methods, there are also automatic monitoring methods such as automatic total station, laser ranging method, and photogrammetry monitoring method. Although these methods can realize automatic continuous measurement, the number of monitoring points arranged in monitoring is small. The amount of data is insufficient; in addition, my country introduced the Bassett convergence system at the beginning of this century, which uses the inclination sensor to monitor the convergence deformation of the tunnel, which can realize the monitoring of the entire tunnel section, but the structure of the data acquisition device is complex and occupies a large working area. At the same time, it needs to assume a fixed reference point when performing deformation calculations. The movement of the reference point will seriously affect the calculation results of the vault settlement, which is not suitable for large-scale promotion.

Therefore, various monitoring methods at this stage are difficult to meet the increasing demand for tunnel monitoring

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