Device and method for measuring roadway top plate pressure carriage and deformation
A technology of roadway roof and measuring device, which is applied in the direction of measuring device, measurement of property force of piezoelectric resistance material, instrument, etc. problem, to achieve the effect of wide practicability, fast detection, and overcoming errors
Active Publication Date: 2017-05-31
GUIZHOU UNIV
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Problems solved by technology
[0004]
The technical problem to be solved by the present invention is to provide a measuring device and method for measuring the pressure and deformation of the roof of the roadway, so as to solve the problem that the measuring device in the prior art cannot measure the surrounding rock pressure and deformation of the roadway in real time. Technical issues such as measurement, which have a great impact on the maintenance of deep mine roadways
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[0031] A measuring device for pressure bearing and deformation of roadway roof (see figure 1 ), it includes a pressure sensor 1 and a deformation measuring instrument 2, and it also includes a articulated rod 4, the number of which is greater than 2, and each articulated rod 4 is connected end to end and fixed on the roadway roof; the pressure sensor 1 is fixed on two Between the hinge rods, the pressure sensor is installed in this way to be evenly stressed, which can better reflect the pressure of the roadway. The deformation measuring instrument 2 fixes the bottom on the roadway roof through the support rod 5, and the support rod 5 is fixed on the hinge rod 4.
[0032] The deformation measuring instrument 2 includes a telescopic casing 11, a hose 10, a piston 6, a U-shaped tube 8, an inductor 9, and a scale 7, and the telescopic casing 11 is deformed under compression or tension. All can be elastically restored to the original state when deformed, the flexible pipe 10 can sl...
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Abstract
The invention discloses a device and a method for measuring roadway top plate pressure carriage and deformation. The device comprises two hinging rods (4), a pressure sensor (1) and a deformation measurer (2). The device is characterized in that the hinging rods (4) are connected end to end and fixed on a roadway top plate, the pressure sensor (1) is fixed between the hinging rods (4), two ends of a supporting rod are fixed on the hinging rods (5), and the deformation measurer (2) is fixed on the roadway top plate through the supporting rod (5). By the device, the technical problems including great influence on maintaining deep mine roadways due to the fact that measuring devices of the prior art cannot well measure pressure and deformation of surrounding rock of the roadways in real time are solved.
Description
technical field [0001] The invention belongs to the technical field of mine safety, and in particular relates to a measuring device and method for measuring pressure and deformation of a roadway roof. Background technique [0002] At present, with the continuous improvement of my country's coal mining technology and the continuous deepening of coal seam mining depth, my country is gradually entering the deep mining stage. However, the ensuing problem is the continuous increase of the confining pressure and deformation of the underground roadway. Due to the characteristics of high ground stress, high and low temperature and high karst water pressure in deep mining, this problem has become increasingly serious. Therefore, it is very important to understand the pressure bearing and deformation of the surrounding rock of the roadway for the proposal of the roadway support and maintenance plan. [0003] In the process of mine mining, traditional devices for measuring surrounding...
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Login to View More IPC IPC(8): G01B21/32G01L1/18
CPCG01B21/32G01L1/18
Inventor 韦善阳韩连昌刘勇田焱
Owner GUIZHOU UNIV