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A method of using an automatic measuring device for roof and floor stability

A technology of automatic measurement and stability, applied in the field of mining machinery, can solve the problems of bottom drilling, inclination, and low rigidity of weak base plates, and achieve the effect of reducing workload, reducing work intensity and improving measurement accuracy.

Active Publication Date: 2019-02-05
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is aimed at the weak floor condition, due to the influence of the working face mining and the influence of the advanced support pressure, the possibility of sinking of the roof along the empty slot and bottom heaving of the bottom plate increases, especially the stiffness of the weak floor An automatic measurement device and method of use for roof and floor stability developed for the problems that the support is prone to bottom drilling or even tilting, and the stope support system is unstable

Method used

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  • A method of using an automatic measuring device for roof and floor stability
  • A method of using an automatic measuring device for roof and floor stability
  • A method of using an automatic measuring device for roof and floor stability

Examples

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Effect test

Embodiment 1

[0044] Such as Figure 1-Figure 4 As shown, an automatic measuring device for roof and floor stability includes a car body and an improved single pillar detachably fixed thereon;

[0045] The car body includes a compartment panel 1, on which the improved single pillar is detachably fixed, and on the compartment panel 1 are also provided with a manipulator 2 and a storage box 3, as well as a displacement measuring system connected with the manipulator 2, hydraulic pressure Metering system and roof defect detection system; the improved single pillar is connected to the displacement measurement system, hydraulic measurement system and roof defect detection system respectively;

[0046] The improved single column is composed of an inner column 4 and an outer column 5 sleeved outside the inner column 4. The outer column 5 is a hollow structure with one end closed. The hollow part is an oil chamber 6. The inner column 4 is a structure with both ends closed. A top plate baffle 7 is ...

Embodiment 2

[0061] A method of using the automatic roof and floor stability measuring device of the present invention to measure the floor specific pressure at different locations of the entire roadway on site, comprising the following steps:

[0062] Step 1. Arrange measuring points: arrange a measuring point every 10m in the roadway area with flat terrain, and arrange a measuring point every 5m in the area where the slope of the terrain is greater than 8° or within 20m, and the difference between any height of the roadway is 500mm;

[0063] Step 2. Measurement: Use the automatic measuring device for the stability of the top and bottom plates, push it to the first measuring point, clean the bottom plate first, straighten the improved single pillar, and keep it in a vertical state. The bottom plate must be in full contact.

[0064] Open the valve on the high-pressure liquid injection pipe 16, it is advisable to pressurize the improved single pillar so that the top plate baffle plate 7 is n...

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Abstract

The invention discloses a top and bottom plate stability automatic measuring device comprising a vehicle body and an improved single prop detachably fixed on the vehicle body; the vehicle body comprises a compartment plate (1); the improved single prop is detachably fixed on the compartment plate (1); the compartment plate (1) is also provided with a displacement metering system, a hydraulic metering system, a top plate defect detection system, a manipulator (2) and a storage box (3); the improved single prop is respectively connected with the displacement metering system, the hydraulic metering system, and the top plate defect detection system. The top and bottom plate stability automatic measuring device can realize cycle liquid injection, and uses existing emulsion to serve the liquid injection work in the whole process; the top and bottom plate stability automatic measuring device is provided with the improved single prop, so workers carrying single bodies are not needed within a kilometer range, thus greatly reducing workload and work intensity; the storage box can convey tens of jins weighted pressing mold and other measuring parts.

Description

technical field [0001] The invention relates to a mining machine, and is especially suitable for an automatic roof and floor stability measurement device and a use method when mining coal in a working face under complex surrounding rock conditions. Background technique [0002] The stope support system is composed of "bottom plate-bracket-roof". Under the impact of mining and the supporting pressure of the bracket (column), the bottom plate will be displaced, deformed and even damaged. When the bottom plate of the roadway is damaged, the roof will also be damaged. Even if a roof fall accident occurs, the damage of the bottom plate will further affect the support effect of the stope and the roadway, the support (column) may bottom out or tilt, the effective support force of the support (column) will be significantly reduced, and the sinking of the roof will increase. Detachment occurs at the top, and even a roof fall accident occurs, which may lead to the redistribution of gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02G01S13/88
CPCG01D21/02G01S13/88
Inventor 张华磊庞冬冬鲍鸣
Owner ANHUI UNIV OF SCI & TECH
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