An intelligent monitoring system and method for large-section chamber deformation in deep mines

Abstract

The invention discloses an intelligent monitoring system and method for large-section chamber deformation in a deep mine. The intelligent monitoring system comprises a signal receiving and transmitting device (1), a rotating control device (2), a horizontal rotating pier (3), a lifting column (4), a base (5), and a control device (6), the signal receiving and transmitting device (1) is mounted onthe rotating control device (2), and the rotating control device (2) is mounted on the horizontal rotating pier (3); and the horizontal rotating pier (3) is mounted on the lifting column (4), the lifting column (4) is mounted on the base (5), and the signal receiving and transmitting device (1), the rotating control device (2) and the lifting column (4) are in communication connection with the control device (6). According to the intelligent monitoring system and method for large-section chamber deformation in the deep mine, continuous monitoring and multi-directional deformation monitoring can be achieved, and the degree of automation is high.

Description

technical field [0001] The invention relates to the field of chamber monitoring in coal mine underground engineering, in particular to an intelligent monitoring system for large-section chamber deformation in deep mines and a method for using it. Background technique [0002] With the development of coal mining technology, more and more coal mines have coal output reaching tens of millions of tons, and mines are developing in the direction of large-scale. Due to the increase in output, the corresponding electromechanical and transportation equipment in the mine has increased, and the section of the chamber has gradually increased. In addition, in order to realize the green mining of coal resources and reduce the environmental impact of the accumulation of gangue piles on the well, underground washing and gangue discharge technologies have been proposed and applied one after another. A series of large washing chambers and gangue bins have been formed underground A group of ch...

AI Technical Summary

Problems solved by technology

The multi-point displacement meter method and the convergent meter method require pre-embedded devices. There are many measurement points for monitoring the deformation of large-section chambers, and the operation is complicated, which has a destructive effect on the surrounding rock of the chamber. It is difficult to operate during monitoring, so neither of the above two methods should be used

At present, laser displacement monitoring has partially achieved automatic monitoring, which has the characteristics of high precision and easy operation. However, there are still the following problems when using this method to monitor the deformation of deep large-section chambers: 1. The installation location has certain requirements, and needs The measurement base point is fixed, but there are many equipments in the deep large-section chamber, sometimes it is impossible to select a suitable measurement base point, or when the measurement point needs to be moved, the previous monitoring data is invalid, and continuous monitoring cannot be achieved, such as the invention patent with application number 201310419964.5 , the measuring device must be installed on the side of the roadway wall, and the laser distance measuring device of the invention patent with the application number 201510663348.3 needs to be fixed on the top of the roadway; 2. The degree of automation is still not high, such as the invention patent with the application number 201310466049. The laser rangefinder is perpendicular to the center line of the roadway, and manual adjustment is inefficient. The application number is 201410210494.6. The invention patent application number is that the angle between the laser probe is read by a dial. 3. In the existing chamber deformation monitoring, it is often to select a certain section for monitoring. If you want to monitor the chamber in an all-round way, you need to select multiple sections and multiple sets of monitoring equipment, which is time-consuming, laborious and uneconomical; 4. Large-section chambers in deep mines require explosion-proof equipment, but most monitoring equipment does not involve this requirement

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