Deep mining surrounding rock ground pressure disaster occurrence precursor body measurement index characteristic recognition method

A feature recognition and index technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, strength characteristics, etc., can solve the problem of less feature recognition of monitoring indicators, high degree of damage to ground pressure disasters, and difficulty in finding index features and other problems, to achieve effective identification and prediction, strong system stability, and reliable methods

Active Publication Date: 2020-06-26
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0002] Ground pressure disasters induced by deep mining are highly harmful and destructive. However, most of the on-site monitoring methods for ground pressure disasters are current

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  • Deep mining surrounding rock ground pressure disaster occurrence precursor body measurement index characteristic recognition method
  • Deep mining surrounding rock ground pressure disaster occurrence precursor body measurement index characteristic recognition method

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[0028] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0031] The invention provides a m...

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Abstract

The invention provides a deep mining surrounding rock ground pressure disaster occurrence precursor body measurement index characteristic recognition method. The method comprises the following steps:obtaining local fracture deformation of a rock body before a compression peak value through a mining surrounding rock body stress-strain relationship; the sub-instability stage of the rock mass is carried out after the peak value; surrounding rock body measurement optical information is utilized to reflect change characteristics before and after a peak value; meanwhile, body measurement charge andacoustic emission information characteristics are matched to serve as pre-peak long-term monitoring forecast and post-peak proximity monitoring early warning, a pre-peak and post-peak disaster information body measurement index characteristic recognition method and system are established, pre-peak and post-peak precursor body measurement index characteristics are accurately obtained, and effective recognition and prediction of deep mining surrounding rock disaster occurrence precursors are achieved. The method is reliable, simple to operate and high in system stability.

Description

【Technical field】 [0001] The invention relates to the technical field of prediction and prevention of deep rock pressure disasters, in particular to a method for identifying characteristics of physical measurement indicators for precursors of rock pressure disasters in deep mining surrounding rocks. 【Background technique】 [0002] Ground pressure disasters induced by deep mining are highly harmful and destructive. However, most of the on-site monitoring methods for ground pressure disasters are currently focused on identifying the characteristics of monitoring indicators before the peak, and there are few features of monitoring indicators after the peak. Indicator characteristics. This method obtains the local fracture and deformation of the rock mass before the compression peak from the stress-strain relationship of the mining surrounding rock, and the sub-instability stage of the rock mass after the peak. The optical information of the surrounding rock mass is used to refl...

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Application Information

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IPC IPC(8): G01N3/08G01N3/06
CPCG01N3/06G01N3/066G01N3/068G01N3/08G01N2203/0075G01N2203/0617G01N2203/0641G01N2203/0658
Inventor 吕祥锋
Owner UNIV OF SCI & TECH BEIJING
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