Plane Moving Deformation Measuring System and Its Application in Two-Dimensional Similarity Simulation Experiment

Abstract

A plane movement deformation measurement system and use thereof in a two-dimensional similar simulation experiment, belonging to the technical field of similar simulation experiments in mining engineering. The main structure of said system comprises a two-dimensional simulation experiment table (1) for containing similar simulation materials and a strata movement deformation measurement system (2), and the strata movement deformation measurement system (2) comprises a frame body, a vertical slide rail (22), a measuring head (23), a wireless data acquisition apparatus (24) and a computer processing system (25). By defining the structure and position of specific components of the strata movement deformation measurement system (2), during the experiment, the movement deformation values at different positions of a two-dimensional similar material model can be omnidirectionally observed in a timely, true and accurate manner, the measured data is transmitted to the acquisition device in real time, and is processed by the computer data processing system (25), and then the strata movement deformation values are displayed on a computer screen in real time. In the measurement system, the alignment of the measuring head (23) and the measurement, transmission and processing of data are all performed automatically and synchronously, thereby avoiding personal errors.

Description

technical field [0001] The invention relates to the technical field of similar simulation experiments in mining engineering, in particular to a plane movement deformation measurement system and a measurement method for two-dimensional similar simulation experiments. Background technique [0002] The law of rock movement and deformation is an important research content of mining engineering, but because the research object is concealed, it brings a lot of inconvenience to the research. [0003] The similarity simulation experiment is to make a physical model similar to the original model in the laboratory according to the similarity principle, and to study the movement deformation and stress distribution of the rock layer by measuring the displacement, stress and other indicators of the rock layer while the model is mining. Similar material simulation experiments can intuitively present the movement of rock formations during the mining process, which provides convenience for ...

AI Technical Summary

Problems solved by technology

[0006] (1) Total station measurement is manual operation, time-consuming, low degree of automation, and has human error;

[0007] (2) The measurement method of the cable displacement sensor is to drive the connecting wire through the hard metal sheet embedded in the model and then pull the cable displacement sensor reader to realize the measurement of the settlement value of the rock formation. This method can only measure the vertical movement of the ground surface value, and will exert an external force on a similar material model, which will affect the accuracy of the measurement results;

[0008] (3) Manual measurement error is large

[0009] To sum up, there is no high degree of automation, high precision, non-contact planar movement deformation measurement system for two-dimensional similar simulation experiments in the prior art

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