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A gridded rock mass stress and vibration monitoring device, auxiliary installation device, and installation and use method based on pipe-slit bolts

An installation device and pipe-slit technology, which is applied in the field of grid-type rock mass stress and vibration monitoring devices, can solve problems such as low intelligence, inability to simultaneously collect multi-parameter data, and single function, so as to improve safety , excellent support performance, and the effect of increasing accuracy

Active Publication Date: 2022-02-15
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to overcome the shortcomings of existing rock mass monitoring equipment or supporting devices such as single function, inability to simultaneously collect multi-parameter data, and low degree of intelligence

Method used

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  • A gridded rock mass stress and vibration monitoring device, auxiliary installation device, and installation and use method based on pipe-slit bolts
  • A gridded rock mass stress and vibration monitoring device, auxiliary installation device, and installation and use method based on pipe-slit bolts
  • A gridded rock mass stress and vibration monitoring device, auxiliary installation device, and installation and use method based on pipe-slit bolts

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1-3 As shown, this embodiment provides a grid-type rock mass stress and vibration monitoring device based on a pipe-slit bolt, which is characterized in that it includes a pipe-slit bolt body 1, a strain and vibration sensor integrated grid 2 , silicone jacket 6, fixed tray 3, information intelligent integration device 4, wired transmission unit 5, the strain and vibration sensor integration grid 2 is composed of multiple high-precision strain sensors 2-1 and two vibration sensors 2 -2 components, the main body of the grid is the strain sensor 2-1 evenly and symmetrically distributed at a certain distance from top to bottom, and the two vibration sensors 2-2 are arranged at the symmetrical position of the drilling hole, and the sensors are transmitted by wires The fixed tray 3 is installed at the contact between the bottom of the pipe-slotted bolt and the rock wall. There are small holes on the tray for strengthening the surrounding rock, and it is also ...

Embodiment 2

[0050] This embodiment provides an auxiliary installation device for installing the strain and vibration sensor integrated grid to the pipe-slotted bolt that has been driven into the borehole, and the auxiliary installation device can be applied to one of the first embodiments The installation of a grid-type rock mass stress and vibration monitoring device based on a pipe-slit bolt, such as Figure 4-14 As shown, the auxiliary installation device includes a grid carrier, a movable support rod 8, a sleeve 9, a central rod 10, a fastening bolt 11, a device fixing body, an L-shaped semi-hollow cylinder 13, a spring 14, and a sleeve stopper. Plate and threaded knob 23, the grid carrier is used as the installation carrier of the integrated grid of the strain and vibration sensor, and is composed of two symmetrical hollow semi-cylindrical shapes 7-1 and 7-2, and the fixed body of the device is located on the grid The upper and lower ends of the carrier body are composed of two cylin...

Embodiment 3

[0058] This embodiment provides a method for installing and using a grid-type rock mass stress and vibration monitoring device based on a pipe-slit bolt in Embodiment 1, which is characterized in that it mainly includes the following steps:

[0059] Step 1: According to the actual situation and needs of the mine, use the rock drilling rig to drill holes with the required diameter and depth at a reasonable interval.

[0060] Step 2: Use the anchor grinding device to grind and polish the inner wall of the slotted anchor, so that when the strain and vibration sensor integrated grid 2 is installed, it is more conducive to the tight fit between the grid and the inner wall of the anchor.

[0061] Step 3: Perform linkage debugging and calibration before on-site installation of the strain and vibration sensor integrated grid 2 and the information intelligent integration device 4 to ensure that the entire signal receiving device can operate normally.

[0062] Step 4: Clean up the drill...

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Abstract

The invention relates to a grid-type rock mass stress and vibration monitoring device based on a pipe-slit bolt, an auxiliary installation device and an installation and use method, including a pipe-slit bolt body, an integrated grid of strain and vibration sensors, and silica gel Jacket, fixed tray, information intelligent integration device, wired transmission unit, the strain and vibration sensor integrated grid is composed of multiple high-precision strain sensors and two vibration sensors, and the strain and vibration sensor integrated grid It can be installed into the slotted anchor rod through the special auxiliary installation device of the present invention. The present invention adopts the grid-type multi-point monitoring, which can sense the tiny strain of the rock mass more accurately and widely, and increases the overall accuracy of the monitoring equipment. At the same time, relying on the obtained multi-point strain data, a grid model for monitoring the borehole is established. , not only can visually observe the small deformation of the rock mass, but also can judge the working condition of the strain sensor at each point, which greatly increases the degree of visualization of the monitoring data.

Description

technical field [0001] The invention belongs to the field of mine safety monitoring, and relates to a grid-type rock mass stress and vibration monitoring device based on a pipe-slit bolt, an auxiliary installation device and an installation and use method. Background technique [0002] Mineral resources have always played an important role in the development of the national economy. However, in the mining process of mineral resources, due to the inability to grasp the stress state inside the rock strata in a timely and accurate manner, mine disasters and accidents caused by the appearance of ground pressure emerge in endlessly, especially accidents such as rock bursts and mine earthquakes, which have caused serious damage to enterprises. Huge loss of personnel and property, especially in recent years, with the depletion of shallow mineral resources, deep mining and marine resource mining have gradually become the norm, and the phenomenon of ground pressure will be more serio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02G01D11/18G01D11/30G08C17/02
CPCG01D21/02G01D11/18G01D11/30G08C17/02
Inventor 马举赵国彦陈立强简筝毛文杰
Owner CENT SOUTH UNIV
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