Rockburst monitoring and positioning method, device and system

A positioning method and positioning device technology, applied in measuring devices, radio wave measuring systems, positioning, etc., to achieve the effects of eliminating noise interference, reducing noise interference, and improving safety

Pending Publication Date: 2020-12-08
WUHAN INSTITUTE OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a rockburst monitoring and positioning method, device and system for the above-mentioned deficiencies in the rockburst acoustic emission monitoring technology, which can perform real-time acoustic wave monitoring of roadway rockburst phenomena and reduce noise Interference, improve the accuracy of sound wave early warning, in order to improve the safety of roadway operations

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  • Rockburst monitoring and positioning method, device and system
  • Rockburst monitoring and positioning method, device and system
  • Rockburst monitoring and positioning method, device and system

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Embodiment Construction

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0054] Such as figure 1 Shown, based on the rockburst monitoring and location device of the present invention, comprising:

[0055] The acquisition module acquires sound signals from various directions in the roadway, the sound signals are collected by the sound wave sensor array, and the sound signals include noise signals and / or sound signals corresponding to the spectrum data before the rockburst;

[0056] The first noise reduction module is used to use the array positioning technology to determine the distance and orientatio...

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Abstract

The invention relates to a rockburst monitoring and positioning method, device and system. The rockburst monitoring and positioning method comprises the following steps: S1, obtaining sound signals from all directions in a roadway; S2, performing spacing and orientation determination on the acquired sound signals by adopting an array positioning technology, and removing noise signals of which thedistance and orientation are non-rockburst areas in the sound signals; S3, performing noise reduction processing on the noise signals without the non-rockburst area by adopting an autocorrelation technology to remove environmental noise interference; S4, performing spectral analysis on the sound signals subjected to environmental noise interference removal by adopting a sound wave spectral analysis technology to obtain amplitude spectrogram data of the sound signal; and S5, when frequency spectrum data matched with the frequency spectrum characteristic data before rockburst occurs in the amplitude spectrogram data, obtaining the distance and orientation of the sound signals corresponding to the frequency spectrum data, and performing rockburst early warning. Real-time sound wave monitoringon the rockburst phenomenon of a roadway is achieved, noise interference is reduced, and the accuracy of sound wave early warning is improved.

Description

technical field [0001] The invention belongs to the technical field of rockburst early warning, and in particular relates to a rockburst monitoring and positioning method, device and system. Background technique [0002] In mining, transportation construction and hydropower projects, it is often necessary to excavate roadways. In the case of brittle surrounding rock, because of the appearance of roadway, the original three-dimensional balance of surrounding rock is stressed and destroyed, because local stress concentration in surrounding rock is caused. Because of the brittleness of the surrounding rock, the result of this continuous stress concentration is the explosive scattering of the surrounding rock, that is, the phenomenon of rockburst. [0003] Rockburst is a big risk to personnel and equipment during construction, so it is necessary to monitor and warn the surrounding rock of the roadway to prevent accidents. There are currently three types of technologies as rock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/20G01S11/14
CPCG01S5/20G01S11/14
Inventor 卢永雄吝曼卿熊伦张电吉
Owner WUHAN INSTITUTE OF TECHNOLOGY
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