Gauging rule and measurement method of tunnel convergence length

Abstract

The invention discloses a gauging rule and a measurement method of tunnel convergence length. The gauging rule comprises a gauging rule body, wherein the gauging rule body is fixedly arranged on a rail car, a fixed wheel component is arranged at one end of a lower part of the rail car, and a movable wheel component is arranged at the other end of the lower part of the rail car; the rail car locksor unlocks the movable wheel component through a locking component, a track is arranged above the gauging rule body, a support is movably arranged on the track, a horizontal compensator is arranged above the support, a protractor and a connecting rod are arranged on the horizontal compensator, and a laser ranger and a camera device are fixedly arranged on a front end of the connecting rod; and a measurement method of the tunnel convergence length by the gauging rule is adopted. By the mode, the gauging and ultrahigh can be automatically measured and the geometry of the tunnel can be accuratelymeasured through the gauging rule, the measurement is slightly influenced by the external, the measurement precision is high, the operation is simple, and the time and the labor cost are reduced.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a gauge ruler and a method for measuring the convergent length of a tunnel. Background technique [0002] In the process of measuring the gauge and superelevation, the gauge ruler is mainly fixed on the rail by the movable measuring head, and the measuring head is moved repeatedly along the direction of the track to measure the distance between two parallel tracks, that is, the gauge[ 4]. Because the railway is very long, and the design requirements of the monitoring point density in the protective monitoring of high-speed rail and subway are very high, the measurement of gauge and superelevation is a huge task that requires human resources. [0003] At the same time, a laser range finder is often used to measure the geometric shape of the tunnel at the necessary monitoring points, and then reflect the convergence of the tunnel through long-term monitoring. The following di...

AI Technical Summary

Problems solved by technology

[0005] In the process of placing the laser range finder, it is difficult to be perpendicular to the track, that is, parallel to the cross section of the tunnel, and it is difficult to control the data measured at the same monitoring point in the same plane, resulting in inaccurate data;

[0006] In the process of measuring morphological parameters such as tunnel clearance, it is very difficult to place the gauge ruler at the center of the tunnel, and it is also difficult for the laser to be vertically incident, resulting in inaccurate measurement of morphological parameters such as tunnel clearance

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