Tube wave monitoring method for local hazard relief effect of dynamic disaster of underground engineering dynamic disaster

A technology for dynamic disasters and underground engineering, applied in earthwork drilling, mining equipment, mining equipment, etc., can solve problems such as damage monitoring, surrounding rock damage, and complex analysis principles of monitoring processes, achieving high accuracy and high degree of automation , Clarify the effect of surrounding rock integrity

Inactive Publication Date: 2019-03-19
SHANDONG UNIV OF TECH
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Problems solved by technology

At present, the monitoring and early warning technology for the precursors of surrounding rocks in underground engineering, especially rockbursts, mainly focuses on microseismic (acoustic emission) monitoring, but this method is a destructive monitoring method at the engineering site. cause damage, and the monitoring process and analysis principles are relatively complex, so disasters still occur from time to time

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  • Tube wave monitoring method for local hazard relief effect of dynamic disaster of underground engineering dynamic disaster
  • Tube wave monitoring method for local hazard relief effect of dynamic disaster of underground engineering dynamic disaster
  • Tube wave monitoring method for local hazard relief effect of dynamic disaster of underground engineering dynamic disaster

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Embodiment Construction

[0037] Figure 1~4 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~4 The present invention will be further described.

[0038] A tube wave monitoring method for local hazard relief effects of underground engineering dynamic disasters, including a tube wave monitoring system for local hazard relief effects of underground engineering dynamic disasters, such as figure 1 As shown, the roadway 2 is opened in the surrounding rock 1, and several stress release holes 3 are opened on the rock wall of the roadway 2, and a tube wave monitoring device 5 is arranged in the stress release holes 3 ( figure 1 not shown).

[0039] Such as figure 2 As shown, after the tube wave monitoring device 5 is placed in the stress relief hole 3, the inside of the stress relief hole 3 is filled with a coupling agent 4, which can be realized by water. The opening of the stress relief hole 3 is provided with a blocking member 6 to prevent the coupling ag...

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Abstract

The invention relates to a tube wave monitoring method of a local hazard relief effect of a dynamic disaster of an underground engineering and belongs to the technical field of safety detection and monitoring of mining and geotechnical engineering. The method is characterized in: comprising a tube wave monitoring system, wherein the tube wave monitoring system comprises a tube wave monitoring device (5) arranged in a stress release hole (3), the stress release hole (3) is formed in a wall rock (1), and a coupling agent (4) is injected into the stress release hole (3); the tube wave monitoringdevice (5) comprises a receiving transducer (7), a transmitting transducer (11) and a tube wave detector which is simultaneously connected with the receiving transducer (7) and the transmitting transducer (11). In the tube wave monitoring method for the local hazard relief effect of the dynamic disaster of the underground engineering, the stress release hole is utilized, the combination of the dynamic disaster relief and the monitoring is realized, the secondary hole opening of the wall rock is not needed, and the method has the advantages of simple operation and post-analysis, high automationand higher accuracy.

Description

technical field [0001] The invention discloses a tube wave monitoring method for the partial danger relief effect of dynamic disasters in underground engineering, which belongs to the technical field of mining and geotechnical engineering safety detection and monitoring. Background technique [0002] Surrounding rocks of underground engineering have hazards such as slabs, roof caving, water inrush, and rockburst dynamic disasters, which not only cause support failure, affect the progress of the project, and even cause earthquakes, posing a direct threat to staff and equipment. With the continuous increase of underground space development and mining depth, the ground stress is getting higher and higher, the frequency and intensity of dynamic disasters such as rockbursts have increased significantly, engineering disasters have become increasingly serious, and safety issues need to be resolved urgently. The key problem to be solved urgently in engineering disaster prevention and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 张晓君李晓程宋林波
Owner SHANDONG UNIV OF TECH
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