A Tunnel Convergence Online Monitoring Device Based on Torque Type Angle Measurement

Abstract

The invention discloses a tunnel convergence on-line monitoring apparatus based on torque-type included angle measurement. The apparatus includes an arch crown anchor base and two haunch anchor bases, wherein the arch crown anchor base is fixedly disposed on an inner wall arch crown of a tunnel supporting member and the two haunch anchor bases are fixedly disposed on two side haunches of the tunnel supporting member. A torque-type included angle measuring unit is installed on the arch crown anchor base and is tightened with the two haunch anchor bases through spring steel ropes. The apparatus is small in on-site occupied area, is easy to deploy, is easy to construct and operate, and allows large-scale and low-cost application.

Description

technical field [0001] The invention belongs to the technical field of tunnel convergence detection, and in particular relates to an online monitoring device for tunnel convergence based on torque-type angle measurement. Background technique [0002] Tunnel convergence monitoring is an important safety management content in the process of tunnel construction and daily operation and maintenance, and it is also a major topic of continuous research in the field of engineering technology at home and abroad. With the continuous progress and rapid development of engineering monitoring technology, the use of total stations for multivariate calibration and automatic measurement, and the methods and devices for deformation measurement and inclination measurement using convergence meters have been widely used. Tunnel convergence monitoring has become a modern tunnel construction. An important safety control link in the process. [0003] However, since the existing measurement techniq...

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Problems solved by technology

[0003] However, since the existing measurement techniques are mainly based on the traditional construction supporting mechanism, the operation mode of batch operation is mostly adopted

The usual monitoring method needs to reserve a certain space in the tunnel to install measuring instruments and equipment such as a total station, and it is necessary to install measurement marks on the relevant monitoring sections, or accessories such as measurement sensors and their connecting rod devices, which not only occupy space on the construction site, but also It is inconvenient to implement long-term tracking and monitoring, especially not suitable for early warning and maintenance management of tunnel structure deformation during the commissioning stage, and it is difficult to meet the needs of real-time, centralized and remote information management of monitoring data

Therefore, the above monitoring methods can only be used in the tunnel construction stage. Once the tunnel is completed and put into use (such as the subway operation stage), it is difficult to continue continuous online monitoring.

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