A method for synchronous monitoring of multi-point displacement of tunnel rock formation based on remote sensing technology
A remote sensing technology and tunnel technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of poor timeliness of results, cumbersome processes, and monitoring technology that cannot realize real-time monitoring, so as to reduce manual workload and simplify the monitoring process Effect
Active Publication Date: 2022-04-01
CHINA RAILWAY 16TH BUREAU GRP ROAD & BRIDGE ENG CO LTD +1
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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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[0019] see figure 1 , a method for synchronous monitoring of multi-point displacement of tunnel rock formation based on remote sensing technology, comprising the following steps:
[0020] S1: According to the tunnel construction process, determine and select the tunnel surrounding rock monitoring area, and arrange multiple monitoring points 1 on the selected tunnel surrounding rock wall; the selection of monitoring point 1 is based on the actual location of the tunnel surrounding rock in the project. If the surrounding rock near the entrance is poor, key monitoring needs to be carried out; there are tunnel surrounding rock vaults, primary lining concrete, and places where surrounding rock is loosely accumulated. These are key monitoring items, and key arrangements need to be made at these locations Monitoring point 1; other locations also need to be arranged according to standard requirements.
[0021] S2: Install a fixed bracket 2 near the tunnel surrounding rock monitoring ...
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The invention relates to the technical field of tunnel monitoring, and discloses a method for synchronous monitoring of multi-point displacement of tunnel rock formations based on remote sensing technology. By arranging multiple monitoring points on the surrounding rock wall of the tunnel, a CCD camera is used to monitor the monitoring points of the surrounding rock wall of the tunnel. Take pictures, obtain the initial image information of the monitoring point and the image information corresponding to each moment, and calculate and obtain the displacement of the monitoring point at each moment of taking pictures relative to its initial position in the analysis software of the computer, so as to realize the multi-dimensional analysis of the tunnel rock formation. Point displacement synchronous monitoring. The present invention adopts remote sensing technology to carry out multi-point displacement synchronous non-contact monitoring on the tunnel section, avoiding the problem of artificial interference on the tunnel section, the monitoring process is simple, no manual recording is required, and the manual workload is reduced; Curve fitting is performed at every four consecutive monitoring points, and early warning of rock formation disturbance is determined according to the size of the relevant index, and the displacement risk monitoring along the tunnel is carried out.
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...
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IPC IPC(8): G01B11/02
CPCG01B11/02
Inventor 卢保东史永亮李忠良文宇杜伟丽孙利鹏甘志涛腾明朱欢虎胡晓东
Owner CHINA RAILWAY 16TH BUREAU GRP ROAD & BRIDGE ENG CO LTD
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