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A monitoring device and monitoring method for gas pressure, gas flow and ground stress in a coal seam

A technology of gas pressure and monitoring device, applied in the direction of measuring device, instrument, etc., can solve the problem of simultaneous monitoring of in-situ stress, and achieve the effect of good sealing and reducing labor procedures and workload.

Inactive Publication Date: 2016-08-17
ANHUI UNIV OF SCI & TECH
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  • Abstract
  • Description
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Problems solved by technology

[0003] The existing technology cannot monitor the ground stress while detecting the gas pressure and gas flow in the coal seam. It is difficult to avoid the occurrence of gas disasters caused by untimely detection in coal mining.

Method used

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  • A monitoring device and monitoring method for gas pressure, gas flow and ground stress in a coal seam
  • A monitoring device and monitoring method for gas pressure, gas flow and ground stress in a coal seam
  • A monitoring device and monitoring method for gas pressure, gas flow and ground stress in a coal seam

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Embodiment Construction

[0031] Referring to the accompanying drawings, through the description of the embodiments, the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the function and working principle of each part, and the manufacturing process And the method of operation and use, etc., are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0032] figure 1 It is a schematic diagram of a gas pressure, gas flow and ground stress monitoring device in a coal seam of the present invention, figure 2 It is a schematic diagram of the installation of a gas pressure, gas flow and ground stress monitoring device in a coal seam of the present invention, image 3It is a schematic plan view of a test hole shown in a gas pressure, gas flow and ground stress monitoring d...

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Abstract

The invention discloses a gas pressure, gas flow and ground stress monitoring device in a coal seam, which includes a data acquisition instrument, a gas parameter sensor and a ground stress sensor connected with a gas pipe, and the gas parameter sensor and ground stress sensor are respectively passed through a data transmission line It is connected with a data acquisition instrument; the present invention also discloses a method for monitoring gas pressure, gas flow and ground stress in a coal seam by using the above-mentioned device; adopting the technical scheme of the present invention, the gas pressure, gas flow and ground stress in a coal seam can be simultaneously monitored for ground stress. Monitoring of flow and ground stress.

Description

technical field [0001] The invention belongs to the field of coal mining detection. More specifically, the invention relates to a monitoring device for gas pressure, gas flow and ground stress in a coal seam and a monitoring method using the monitoring device. Background technique [0002] The gas occurrence state in the coal seam is an important factor affecting production safety in the coal seam. With the continuous increase of the mining depth of the coal seam, the gas content of the coal seam gradually increases. At the same time, due to the influence of coal seam mining, the original ground stress and mining stress , the air permeability of the coal seam changes sharply, leading to rapid gas gushing and even gas outburst and other gas disasters; practice shows that various abnormal changes of gas parameters are usually the precursors of gas disasters, and gas pressure, gas flow and ground stress are the key factors. Therefore, it is of great significance to effectively ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
Inventor 谢广祥殷志强李传明胡祖祥徐传升
Owner ANHUI UNIV OF SCI & TECH
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