Tunnel rock multipoint displacement synchronous monitoring method based on remote sensing technology

Abstract

The invention relates to the technical field of tunnel monitoring, and discloses a tunnel rock multipoint displacement synchronous monitoring method based on a remote sensing technology. A plurality of monitoring points are arranged on a tunnel surrounding rock wall, a CCD camera is used for photographing the monitoring points of the surrounding rock wall of the tunnel, the initial image information of the monitoring points and the image information corresponding to each moment are obtained, the displacement of the monitoring points relative to the initial positions of the monitoring points ateach photographing moment is calculated and obtained in an analysis software of a computer, and therefore tunnel rock multipoint displacement synchronous monitoring is achieved. Multi-point displacement synchronous non-contact monitoring is carried out on the tunnel section by adopting the remote sensing technology, the problem of manual interference on the tunnel section is avoided, the monitoring process is simple, manual recording is not needed, and the manual workload is also reduced; and curve fitting is conducted on every four continuous monitoring points at the same moment through a software, early-stage rock disturbance early warning is determined according to related indexes, and tunnel edge displacement risk monitoring is conducted.

Description

technical field [0001] The invention relates to the technical field of tunnel monitoring, in particular to a method for synchronous monitoring of multi-point displacement of tunnel rock formations based on remote sensing technology. Background technique [0002] At present, the geotechnical engineering monitoring, especially the monitoring related instruments and equipment in the process of tunnel engineering construction, mostly use subsidence meters, inclinometers, total stations, levels, etc. These technical methods all have the characteristics of point measurement, and the measurement points are sparse; and in actual work, most of the conventional monitoring technologies still cannot realize real-time monitoring. Third-party software for data management and calculation has disadvantages such as cumbersome process, heavy workload, and poor timeliness of results, making it difficult to realize all-round monitoring of the measured object. Contents of the invention [000...

AI Technical Summary

Problems solved by technology

These technical methods all have the characteristics of point measurement, and the measurement points are sparse; and in actual work, most of the conventional monitoring technologies still cannot realize real-time monitoring. Third-party software for data management and calculation has disadvantages such as cumbersome process, heavy workload, and poor timeliness of results, making it difficult to realize all-round monitoring of the measured object

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