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A kind of roadway surrounding rock deformation monitoring bolt, online monitoring device and monitoring method

A technology of surrounding rock deformation and monitoring device, which is applied in the installation of bolts, earth-moving drilling, mining equipment, etc., can solve the problem of insufficient rigorous data, a lot of manpower and material resources, unable to reflect the deformation state of roadway surrounding rock in real time, intuitively and effectively, etc. problems, to achieve the effect of ensuring production safety

Active Publication Date: 2021-07-13
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above analysis, the present invention aims to provide a roadway surrounding rock deformation monitoring bolt, on-line monitoring device and monitoring method to solve the problem that the existing roadway surrounding rock deformation monitoring methods require a lot of manpower and material resources and are easily affected by human factors. The data obtained are not rigorous enough, and cannot reflect the deformation state of the roadway surrounding rock in a real-time, intuitive and effective manner.

Method used

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  • A kind of roadway surrounding rock deformation monitoring bolt, online monitoring device and monitoring method
  • A kind of roadway surrounding rock deformation monitoring bolt, online monitoring device and monitoring method
  • A kind of roadway surrounding rock deformation monitoring bolt, online monitoring device and monitoring method

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Effect test

Embodiment 1

[0044] A roadway surrounding rock deformation monitoring bolt, such as Figure 1-Figure 2 As shown, the anchor rod body 1 and the anchor rod tray 2 are included; the anchor rod tray 2 can display different colors under different deformations.

[0045] The anchor tray 2 includes a tray end surface and a tray recess. The bottom surface of the tray recess is provided with a central hole, and the size of the center hole matches the diameter of the anchor rod body 1; the wall thickness of the tray recess is greater than that of the tray end surface, and the longitudinal section of the side wall of the tray recess is arc-shaped. .

[0046] The central part of the bolt tray 2 of the present invention is concave to form the tray concave part and the tray end surface, and the geometric size of the concave-convex part is increased, so that it has a greater extension deformation rate when it is loaded, and there is a certain degree of deformation when the roadway surrounding rock deforma...

Embodiment 2

[0066] An on-line monitoring device for deformation of roadway surrounding rock, such as Figure 5 As shown, it includes the monitoring bolt 6 in Embodiment 1, and also includes a color capture sensor 7, a wireless signal transmission device 8, a wireless signal collection base station 9, and a computer 10; the color capture sensor 7 is used to capture the attached color of the anchor tray 2 The color indicator bar 1103 shown in the layer 201 or the window 1104 changes in color; the wireless signal transmission device 8 is used to transmit the color signal captured by the color capture sensor 7; the wireless signal collection base station 9 is used to receive the color signal transmitted by the line signal transmission device and The color signal is transmitted to the computer 10 .

[0067] The color capture sensor 7 in the present embodiment has the supplementary light characteristic and the wireless signal transmission function simultaneously, and the on-line monitoring syst...

Embodiment 3

[0075] A method for online monitoring the stress state of roadway surrounding rock, such as Figure 6 Shown, adopt the on-line monitoring device of embodiment 2, comprise the following steps:

[0076] Step 1. Complete the support of the anchor rod according to the design requirements of the support. The anchor rod includes the anchor rod body 1 and the anchor rod tray 2. The anchor rod tray 2 is provided with a color-developing layer 201 attached to the tray or a deformation indicating device 11. A high-strength adhesive is used to bond the subsidiary color-developing layers 201;

[0077]Step 2. install the color capture sensor 7 and the signal transmission device;

[0078] Step 3. When the roadway surrounding rock is deformed, the stress state of the anchor tray 2 changes, and the color of the anchor tray 2 changes;

[0079] Step 4. The color capture sensor 7 monitors the color change of the anchor rod 6 tray 2 in real time. When the color of the anchor rod tray 2 changes, ...

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Abstract

The invention discloses a roadway surrounding rock deformation monitoring bolt, an online monitoring device and a monitoring method, which belong to the technical field of coal mine underground roadway surrounding rock control, and solve the problem that the roadway surrounding rock deformation monitoring means in the prior art are seriously affected by human factors. It cannot reflect the stress and deformation state of the roadway surrounding rock in a real-time, intuitive and effective way. The monitoring bolt of the present invention includes a bolt body and a bolt tray; the bolt tray displays different colors under different deformations, and monitors the deformation degree of the roadway surrounding rock through the color change of the bolt tray; the bolt tray includes a tray end surface and a tray recess , the bottom surface of the tray recess is provided with a central hole, the size of the center hole matches the anchor rod body; the wall thickness of the tray recess is greater than the wall thickness of the end face of the tray, and the longitudinal section of the side wall of the tray recess is arc-shaped. The monitoring bolt and the on-line monitoring device of the present invention can monitor the deformation of the roadway surrounding rock in real time.

Description

technical field [0001] The invention belongs to the technical field of roadway surrounding rock control in coal mines, and in particular relates to a roadway surrounding rock deformation monitoring bolt, an online monitoring device and a monitoring method. Background technique [0002] With the depletion of shallow resources in most of the main coal production areas in my country, coal mining has gradually entered the deep mining stage. Affected by the complex conditions in the deep, the technical difficulty of maintaining deep roadways has increased. The current domestic mainstream support method is Anchor (cable) support. Since the roadway is a hidden project, its safety hazards are not easy to be found, so it is necessary to adopt technical means to monitor the deformation of the surrounding rock of the roadway during the production process. At present, the roof delamination instrument is mainly used in China to monitor the deformation of the surrounding rock of the roadw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/02
CPCE21D21/02
Inventor 姚强岭马军强王烜辉李学华朱柳夏泽徐强
Owner CHINA UNIV OF MINING & TECH
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