Shield tunnel vault settlement monitoring device

Abstract

The invention provides a shield tunnel vault settlement monitoring device. The shield tunnel vault settlement monitoring device comprises a suspension platform, a signal receiver, a laser transmitter, a settlement monitoring device, a light ray correcting device and a distance measuring device. The laser transmitter is mounted on the suspension platform, the signal receiver is mounted on a vault of a tunnel, the settlement monitoring device is fixed to the vault through the fixing device, the distance measuring device is connected with the settlement monitoring device, and the light ray correcting device is mounted on a vault segment of the tunnel. The laser transmitter, the signal receiver, the light ray correcting device and the settlement monitoring device are located on the same horizontal line. The laser rays emitted by the laser emitter are reflected to the scale plate through the reflection device in the settlement monitoring device, then the settlement distance is measured according to the distance measuring device, and if the settlement distance exceeds the standard range, the alarm device is driven to give an alarm, so that the settlement of the vault of the shield tunnel is monitored in real time, operation and implementation are simple, and the efficiency is high.

Description

technical field [0001] The invention belongs to the field of shield tunnel vault settlement monitoring devices, in particular to a shield tunnel vault settlement monitoring device. Background technique [0002] The shield method is a fully mechanized construction method in the underground excavation method. It is to push the shield machine in the ground, and support the surrounding rock through the shield casing and segments to prevent collapse into the tunnel. A mechanized construction method in which the soil is excavated with a cutting device in front of the excavation face, transported out of the hole by an excavation machine, pushed in by a jack at the rear, and assembled with prefabricated concrete segments to form a tunnel structure. [0003] The construction technology of shield tunneling has made great progress with the improvement of shield machine performance, but the deformation caused by excavation is still inevitable. During the construction of the shield tunn...

AI Technical Summary

Problems solved by technology

[0005] When using contact measurement, when measuring the points of the side wall and working on a large section, it is inconvenient to operate because of the difficulty of vertical leveling or hanging steel rulers; the light in the tunnel is weak, and it is difficult to perform operations such as alignment; The monitoring can only measure one section at a time, and the efficiency is relatively low; during the measurement, the transport trains in the tunnel are constantly entering and leaving, which will also bring inconvenience to the measurement

[0006] When non-contact measurement is used, the light in the tunnel is weak during measurement, and it is difficult to align every time; the train enters and exits, which brings inconvenience to the measurement, the efficiency is not high, and the hardware cost is relatively high

[0007] When the deformation automatic monitoring system is adopted, regardless of the dynamic monitoring system of the Bassett system total station or the dynamic monitoring system of the profiler, if the monitoring of many sections is arranged, the hardware cost is very high

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