Dynamic disaster mine anchor rock stability integrated detection method and system

Abstract

The invention discloses a dynamic disaster mine anchor rock stability integrated detection method and system. synchronous, continuous and regional detection is performed on roadway surrounding rock (including mining roadways and tunneling roadways) roofs, two sides and bottom plates in the deep mine dynamic disaster environment through a non buried integrated detection method of an acoustoelectric wave principle, and accordingly, disaster roadway surrounding rock environment anchor rock stability detection, power information detection early warning and anchor quality determination functions can be achieved, drilling is not needed during detection under the mine, the system is simple and convenient to operate, selective sequence detection and the like can be performed on measurement points or faces of roadway roofs or roadway side surrounding rocks directly.

Description

technical field [0001] The invention belongs to the fields of mining, geotechnical and slope engineering, and in particular relates to an integrated detection method and system for the stability of rock bolts in dynamic disaster mines. Background technique [0002] In mining engineering, due to the influence of burial depth, structural stress, mining scale, deep mining method, mechanical properties of coal and rock rock, concentrated stress, joints, and cracks, the roadway supported by bolts (cables) The coal rocks in the surrounding area have the characteristics of dynamic disasters such as impact dynamics, strong mine pressure, and coal and gas outbursts. [0003] In engineering practice, it is very difficult to solve practical problems with pure mathematical analysis, rock mechanics theory and corresponding indoor simulation tests. Because the coal and rock mass around the roadway is affected by the above factors, especially after being disturbed by stress, its own elast...

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Problems solved by technology

[0005] At present, there are many technical means for monitoring the surrounding rock of mine roadway, such as acoustic emission, optical fiber, resistance strain gauge, electromagnetic radiation, optical drilling and peeping, etc., but they all focus on a certain technical means. ) due to the complexity and diversity of the disaster environment, on-site monitoring is often disturbed by geological factors and operating environment factors, many detection preparations are too complicated, and the detection results appear single and distorted. It can be seen that a single detection method is complex in mines. It is difficult to play an effective guiding role in the realization of engineering practice in the disaster surrounding rock environment

[0006] Under the influence of disaster geological surrounding rock environment and mining disturbance environment, the single monitoring method has low accuracy, data distortion and failure in the detection process, and cannot comprehensively reflect the cause or result of the actual problem

At the same time, there are many disaster-causing factors in underground mines. A single detection technology or principle is often used to detect the dynamic information and migration evolution process of the nonlinear anchor rock mass. The results are often not comparable and cannot reflect the actuality of the problem.

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