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Analysis method and system for start-up conditions and instability process of mining surrounding rock fault sliding

A start-up condition and process analysis technology, applied to mining equipment, earthwork drilling, mining equipment, etc., can solve problems such as unformed, reduce frequency of occurrence and degree of harm, and have strong on-site practicability

Active Publication Date: 2021-06-15
UNIV OF SCI & TECH BEIJING
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  • Claims
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Problems solved by technology

However, at present, the analysis of the cause of the roof cap drop or dynamic disaster in the goaf is concentrated on the strength and stiffness of the surrounding rock, and less analysis is made on the instability caused by the fracture and sliding of the mining surrounding rock. Start-up Conditions and Analytical Method of Instability Process

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  • Analysis method and system for start-up conditions and instability process of mining surrounding rock fault sliding

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Embodiment Construction

[0026] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] 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. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0029] Aiming at the frequent occurrence and hig...

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Abstract

The invention provides a method and system for analyzing the sliding start conditions and instability process of mining surrounding rock fractures, and relates to the technical field of prediction and prevention of mining engineering dynamic disasters, which can effectively predict dynamic disasters and greatly reduce the frequency and harm of deep mining dynamic disasters The degree of site practicability is strong; this method uses the vertical fracture and horizontal sliding of the direct roof and / or old roof corresponding to the goaf as the judgment basis to analyze the instability state of the surrounding rock; specifically: in the direct A number of force sensors, acoustic emission monitoring equipment and microseismic sensors connected to the monitoring center are set in the roof and / or the old roof to collect the real-time horizontal force at its location and the raw data needed to calculate the real-time vertical fracture energy ; The monitoring center is used to process the collected data and judge whether to give an early warning according to the processing result. The technical solution provided by the invention is suitable for the monitoring process of surrounding rock collapse and instability.

Description

【Technical field】 [0001] The invention relates to the technical field of prediction and prevention of dynamic disasters in mining engineering, in particular to a method and system for analyzing the start-up conditions and instability process of mining surrounding rock fracture sliding. 【Background technique】 [0002] With the gradual mining of mining projects to the deep, the in-situ stress is enhanced, and a large goaf is formed in the mining of coal rocks, causing the goaf to directly cover the roof or even the old roof to collapse, and dynamic disasters appear frequently, which poses a major threat to the safety of coal mining. influences. However, at present, the analysis of the cause of the roof cap drop or dynamic disaster in the goaf is concentrated on the strength and stiffness of the surrounding rock, and less analysis is made on the instability caused by the fracture and sliding of the mining surrounding rock. Start-up conditions and analysis methods of instabilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 吕祥锋
Owner UNIV OF SCI & TECH BEIJING
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