Method and system for monitoring horizontal deformation of soil body in mined-out subsidence area and method for constructing system
A technology of horizontal deformation and collapse area, used in the measurement of similar linear dimensions and piping systems, measurement fields
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[0083] Embodiment. This example is an experimental method and system, and its constitution is as Figure 1-Figure 7 shown. The test was carried out in a goaf subsidence area with mining depth ratio of 10, mining length of 15m, pipeline buried depth of 3m and pipeline length of 130m. The diameter of the pipeline is 168mm, the wall thickness is 6mm, and the steel grade is L245.
[0084] The process flow of the real-time online monitoring method of soil horizontal deformation in goaf subsidence area based on fiber grating is as follows: figure 1 shown. After the wavelength signal collected by the sensor is demodulated and preprocessed at the on-site monitoring station, it is remotely transmitted to the off-site monitoring center. After receiving the data, the monitoring center further analyzes and processes the data through a specific algorithm to calculate the collapse of the goaf. The horizontal deformation changes, so as to judge the state stability of the soil strain change...
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