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Flexible mine compressive stress monitoring device and its monitoring method

A monitoring device and compressive stress technology, applied in mining devices, measurement, mining equipment and other directions, can solve the problems of low resolution and sensitivity, difficult to install, etc., and achieve the effects of convenient installation, accurate pressure parameters, and simple structure

Inactive Publication Date: 2017-05-31
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this invention is to provide a kind of flexible mine compressive stress monitoring pressure pillow for mine compressive stress monitoring, as well as the monitoring device and the monitoring method implemented by this pressure pillow, to solve the problems of low resolution and sensitivity and difficult installation question

Method used

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  • Flexible mine compressive stress monitoring device and its monitoring method
  • Flexible mine compressive stress monitoring device and its monitoring method
  • Flexible mine compressive stress monitoring device and its monitoring method

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Embodiment Construction

[0019] From figure 1 It can be seen that the pressure pillow 2 of the present invention includes a flexible shell 10, one end of the flexible shell 10 is closed, and the other end is provided with a socket, through which a hard guide liquid injection tube 11 is inserted, and the guide liquid injection tube 11 and the flexible shell The socket of the body 10 realizes pressure-resistant sealing.

[0020] figure 2 It is an embodiment of the monitoring device composed of the pressure pillow of the present invention. It can be seen from the figure that the guide liquid injection pipe 11 of the pressure pillow 2 passes through the high-pressure rubber hose 3 and the connector 9 and the pressure composed of the pressure gauge 6 and the digital display gauge 7. The measuring and reading device is connected, and the pressure measuring and reading device is provided with a control valve 8, which is connected with the oil pump 5a through the control valve 8.

[0021] exist image 3 I...

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Abstract

The invention discloses a pressure stress monitoring pressure cushion and monitoring device for flexible mines as well as a monitoring method of the monitoring device. In the invention, a flexible pressure cushion is used for replacing the traditional rigid pressure cushion, and closely contacts with hole walls after being pressurized; and when the pressure stress of coal rock mass is monitored, if only the rock mass generates a slight pressure, the pressure can be captured, thereby eliminating the phenomena of inaccurate and lost reading and solving the problem of insensitivity of the pressure cushion, so that the drill pressure stress can be monitored more accurately in time, and more accurate pressure parameters can be provided for scientific research and safety production management.

Description

technical field [0001] The invention belongs to a monitoring device in the field of mining and rock mass engineering. Background technique [0002] Coal and rock masses in the underground stope space are often under the effect of strong and changeable compressive stress field, and the change of the surrounding rock pressure in the stope directly affects the effect of the support method and the safety of personnel and equipment. In recent years, with the increasing depth, strength and scale of coal mine mining, two problems will become more and more serious: one is the increase of compressive stress of the coal and rock mass in the roadway of the mining area; The number and occurrence frequency of mines prone to ground pressure and coal and gas outburst are increasing year by year. In engineering, it is often necessary to quantitatively monitor the compressive stress that induces the failure of coal and rock mass in the mining space. Therefore, the acquisition of pressure pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/06E21F17/18
Inventor 邹德蕴郭忠平王同旭姚树阳王传宗李鹏
Owner SHANDONG UNIV OF SCI & TECH
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