Method for automatically monitoring roadway deformation in real time

A real-time monitoring and roadway technology, applied in the field of automatic real-time monitoring and roadway deformation, can solve problems such as non-uniform deformation, sudden deformation cannot be reflected in real time, measurement results are greatly affected by human factors, and data acquisition and data processing are not synchronized. , to achieve real-time continuous monitoring of the monitoring range, reduce input costs, and achieve good real-time performance

CN101975571AActive Publication Date: 2011-02-16CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-02-16

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Abstract

The invention relates to a method for automatically monitoring roadway deformation in real time. The method comprises the following steps of: distributing cross section marks on a selected cross section of a tested roadway section and distributing a plurality of observation mark points on the cross section; erecting a mining camera probe towards a monitored roadway in a mode that a main optical axis is vertical to the tested cross section; observing the initial true distance between previously-measured observation points, wherein the initial true distance is displayed as a display distance on a computer image; and acquiring a video image of the tested roadway section, monitoring the change of the image on monitoring center software of a computer in real time, processing the video image and automatically recognizing the cross section marks and the observation mark points so as to obtain a relative deformation value and an absolute deformation value in different statistics time scales or calculate the size and the change of the roadway cross section. The method has the advantages of automatic, real-time, continuous and non-contact monitoring, safety and high efficiency. A monitoring result can provide bases for the design of a roadway support, roadway maintenance and the prevention of rock burst and a roof disaster.
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Description

technical field

[0001] The invention relates to the technical field of mine pressure observation and safety monitoring, in particular to an automatic real-time monitoring method for roadway deformation through real-time monitoring of roadway images. Background technique

[0002] In underground rock mass projects such as coal mines and tunnels, there are a large number of roadways, which are the main passages for personnel, vehicles, transportation equipment, materials, mineral resources, gangue and ventilation. Mining activities destroy the original stress balance state of the coal and rock mass, causing stress redistribution around the mining space. When the stress on the surrounding rock of the roadway exceeds its strength, the surrounding rock is deformed, moved or destroyed. The main manifestations of roadway deformation are roof sinking, bottom heaving, rib side, and two-state shrinkage, which are caused by stress redistribution caused by mining or energy released by d...

Examples

Embodiment Construction

[0035] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0036] The automatic real-time monitoring method step of roadway deformation of the present invention is as follows:

[0037] (1) First, select the roadway section to observe deformation according to the requirements, and select at least one section in the roadway section, such as figure 2 It is shown that three sections are selected in the roadway section. In order to facilitate identification from the image, section signs I, II, and III are respectively set on the three sections;

[0038] (2) Arrange multiple observation marker points on each section, and the observation marker points are survey point signboards with serial numbers of observation points that are easy to identify from the image, such as observation marker points ①, ②~⑧, etc.; the observation marker points are at least When there are four observation points, they are respectively located ...