Mine mud burst testing device and method
A test device and mud inrush technology, used in measurement devices, using stable tension/pressure to test material strength, suspension and porous material analysis, etc. Post-operation security threats and other issues, to achieve the effect of high stiffness
Inactive Publication Date: 2016-08-24
HUNAN UNIV OF SCI & TECH
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Problems solved by technology
[0002] In the process of underground mining, there will be water-rich fault fracture zones, and water and mud inrush disasters are very prone to occur, which poses a great threat to the safety of underground engineering construction and later operation safety
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] see figure 1 , The device of this embodiment includes a test piece device, a loading device, a voltage stabilizing device and a measuring device. From figure 1 It can be seen from the figure that the test piece device includes a test piece pressure chamber 1 fixed on a bracket 12, a cylindrical sleeve 3 with a test piece 2 placed in the test piece pressure chamber 1, and a through hole is left in the center of the bottom of the test piece pressure chamber 1 And the baffle plate 4 is installed, and the center opening of the baffle plate 4; the baffle plate 4 is a series of baffle plates with different sizes of central openings. The loading device includes a reaction force device 8 installed on the left side of the test piece pressure chamber 1. A loading oil cylinder 10 is installed at the bottom of the reaction force device 8. The loa...
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The invention discloses a mine mud burst testing device and method. The device mainly comprises a test piece unit, a loading unit, a pressure stabilizing unit and a measurement unit. The method mainly comprises the steps of placing a baffle on the bottom in a test piece pressure chamber; making a test piece slip into the test piece pressure chamber together with a sleeve; filling the test piece pressure chamber with water through a water injection and pressure stabilization hole; connecting the pressure stabilization unit to the water injection and pressure stabilization hole; starting the loading unit to apply pressure to the interior of the test piece pressure chamber, and stopping pressure application after pressure reaches a set value; starting the pressure stabilization unit to stabilize the pressure in the test piece pressure chamber; starting to measure the pressure in the test piece pressure chamber, the pressure of pores in the test piece and the volume of water permeating through the test piece through the measurement unit in real time; stopping measurement and stopping the loading unit and the pressure stabilization unit after the measurement unit shows that the pressure in the test piece pressure chamber is reduced suddenly and sharply. The device can simulate the water burst and mud burst process under high water pressure, and a good and lasting pressure stabilization effect can be realized.
Description
technical field [0001] The invention belongs to the technical field of engineering geology, and in particular relates to a mine mud outburst test device and test method. Background technique [0002] In the process of underground mining, water-rich fault fracture zones will be encountered, and water and mud inrush disasters are extremely prone to occur, which poses a great threat to the safety of underground engineering construction and later operation safety. The rock mass in the fault zone has the characteristics of large pores, good permeability, loose and broken structure, and low strength. Water-rock interaction is the key factor that induces seepage instability of the rock mass in the fault fracture zone and leads to mud inrush disasters. Groundwater will induce the cracks in the broken rock mass to increase, and the filling medium will be scoured and migrated, resulting in the expansion of the initial seepage channel and the continuous increase of the porosity and per...
Claims
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IPC IPC(8): G01N3/12G01N15/08
CPCG01N3/12G01N15/0826
Inventor 柴红保
Owner HUNAN UNIV OF SCI & TECH