Ore pillar long-term stability monitor and installation method thereof

A technology of stability and monitors, which is applied in the direction of measuring devices, mining devices, force/torque/power measuring instruments, etc., can solve the problems of complicated installation of monitoring instruments, poor overall sealing, high on-site damage rate, etc., and achieve continuous long-term monitoring , easy installation, and precise pillar stability

Inactive Publication Date: 2018-06-15
SHANDONG UNIV OF TECH
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Problems solved by technology

[0007] (3) The installation of monitoring instruments is complicated, the overall sealing is poor, the site damage rate is high, and the reliability is weak

Method used

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  • Ore pillar long-term stability monitor and installation method thereof
  • Ore pillar long-term stability monitor and installation method thereof

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Embodiment Construction

[0034] The present invention proposes a long-term stability monitor for ore pillars and its installation method. In order to make the advantages and technical solutions of the present invention clearer and clearer, the present invention will be described in detail below in conjunction with specific embodiments.

[0035] to combine figure 1 and figure 2 As shown, the mine pillar long-term stability monitor of the present invention is composed of a stress monitoring module 1, an isolation gasket 2, a rock mass integrity monitoring module 3, an external sealing layer 4 and an external connecting line 7, wherein the stress monitoring module 1 The structure includes a stress module high-strength housing 11, a stress signal processor 12 and a stress monitoring module power supply battery 13. The stress module high-strength housing 11 is cylindrical and made of metal, with a diameter of preferably 46mm and a height of 50mm.

[0036] The rock mass integrity monitoring module 3 is co...

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Abstract

The invention discloses an ore pillar long-term stability monitor and an installation method thereof, which belong to the technical field of rock stability monitoring. The ore pillar long-term stability monitor comprises a stress monitoring module and a rock integrity monitoring module, the stress monitoring module is used for monitoring the stress change of an ore pillar, and the rock integrity monitoring module comprises an enclosed housing, a sound wave transmitter-receiver, a rock integrity signal processor, a rock integrity monitoring module power supply cell, and a signal transmission mode and the like. The sound wave transmitter-receiver is used for emitting sound wave into the ore pillar rock and receives the returned sound wave; the rock integrity signal processor is used for conveying the sound wave received by the sound wave transmitter-receiver to an electric signal; and the rock integrity monitoring module power supply cell provides the powder to the rock integrity monitoring module. The ore pillar long-term stability monitor takes ore pillar stress and rock integrity as a monitoring index parameter, which can accurately determine the ore pillar stability; the monitorcan be effectively protected by an external sealing layer, and continuous long-term monitoring for the ore pillar stability can be realized.

Description

technical field [0001] The invention relates to the technical field of rock mass stability monitoring, in particular to a long-term stability monitor of an ore pillar and an installation method of the monitor. Background technique [0002] Mine mining projects, especially underground coal and non-coal mining, will leave a large number of ore pillars, forming an underground space supported by large-area continuous ore pillars. Within a certain period of time, the ore pillar can effectively support the underground goaf and maintain stability; however, under the load of the overlying rock layer, the rheology and creep of the ore pillar will proceed at all times. Decades later, the chain damage of ore pillars will cause the entire underground goaf to collapse instantaneously, which will induce strong dynamic impact disasters, resulting in severe mine vibrations and surface movement and settlement. Therefore, it is very important to realize the prediction and early warning of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01L5/00E21F17/18
CPCE21F17/18G01L5/00G01N29/04G01N2291/0232
Inventor 刘志河李明郑怀昌王树立
Owner SHANDONG UNIV OF TECH
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