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Monitoring apparatus for charge during gas or water-contained coal rock triaxial compression and fracture process

A technology of triaxial compression and monitoring device, which is used in measuring devices, measuring electrical variables, instruments, etc.

Inactive Publication Date: 2012-02-15
LIAONING TECHNICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few devices using electric charge to monitor coal mine dynamic disasters. The current charge sensing device consists of loading, shielding, charge sensor, data acquisition and load displacement recording. The patent number published by the State Intellectual Property Office of China on July 22, 2009 is 200810013033.4 The invention patent named "Rock Mass Charge Radiation Instrument" can measure the amount of charge generated by the deformation and cracking of coal and rock, but it cannot realize the monitoring of the induced charge in the whole process of deformation and cracking of coal rock containing gas or water

Method used

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  • Monitoring apparatus for charge during gas or water-contained coal rock triaxial compression and fracture process
  • Monitoring apparatus for charge during gas or water-contained coal rock triaxial compression and fracture process

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Embodiment Construction

[0009] Examples, see attached figure 1 , The gas or coal-water-containing rock triaxial compression fracture charge monitoring device is provided with a horizontal cylinder outlet hole 13-1 at the bottom of a circular cylinder 13, which is in the vertical direction and communicates with the cylinder outlet hole 13-1. A cylinder central hole 13-2 is provided, a cylinder confining pressure inlet hole 13-3 is provided on the wall of the cylinder 13, a groove is provided on the inner bottom of the cylinder 13, and a square cone insulating pad is installed in the groove 14. The contact part between the insulating pad 14 and the cylinder 13 is sealed with a sealing ring 5. A square indenter 15 is arranged above the insulating pad 14. The square indenter 15 and the insulating pad 14 are both provided with central holes 15-1 and 14-1 which are in correspondence with the central hole 13-2 of the cylinder. A square coal-rock sample body 16 is set above the square indenter 15, and four c...

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Abstract

The invention relates to a monitoring apparatus for a charge during a gas or water-contained coal rock triaxial compression and fracture process. According to the invention, a groove is arranged at a bottom in a cylindrical shell (13); a square frustum insulation pad (14) is installed in the groove; a square pressure head (15) is installed on the insulation pad (14); a square coal rock sampling (16) is arranged on the square pressure head (15); a square pressure head (15) and an insulation pad (14) are arranged on the square coal rock sampling body (16), wherein the square pressure head (15)and the insulation pad (14) are respectively the same as the ones under the square coal rock sampling body (16); compressed nuts (4) are arranged on circular beads of position sleeves (3) and are used for threaded connection of the position sleeves (3) on the cylindrical shell (13) fixedly; center holes (1-2) are arranged in a pressure bar; conductive screws (12) are fixed on the cylindrical shell (13); insulation sleeves I (8) are arranged at sealing bolts (7) and insulation sleeves II (9) are arranged at the conductive screws (12). According to the invention, a technical guidance is provided for prediction and control of coal and gas outburst as well as water inrush, so that monitoring on charges during the gas or water-contained coal rock triaxial compression and fracture process can be realized.

Description

Technical field [0001] The invention belongs to a coal mine production safety monitoring device, in particular to a triaxial compression fracture charge monitoring device for coal and water containing gas or water. Background technique [0002] At present, with the increasing depth of coal mining resources, the frequency of gas outbursts and floor water inrush accidents in coal mines has increased sharply, becoming the main dynamic disasters in coal mining, causing great harm to coal mine safety production and people's lives. There are few devices using electric charge to monitor coal mine dynamic disasters. The current charge sensing device consists of loading, shielding, charge sensor, data collection and load displacement recording. The patent number published by the State Intellectual Property Office of China on July 22, 2009 is 200810013033.4 The invention patent named "Rock Mass Charge Radiometer" can measure the amount of charge generated by the deformation and fracture of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/24
Inventor 潘一山肖晓春李忠华吕祥锋赵扬锋
Owner LIAONING TECHNICAL UNIVERSITY
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