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Rapid testing device of permeability of rocks

A technology for rapid testing of permeability characteristics, which is applied in the fields of measuring devices, permeability/surface area analysis, suspension and porous material analysis, etc. It can solve the problems that the pressure difference does not reach a stable value and the penetration time is short, and achieves low cost and easy operation. The effect of convenience and simple structure

Inactive Publication Date: 2012-04-11
SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the stroke limitation of the supercharger, the penetration time is short, and sometimes the pressure difference has not reached a stable value at the end of the penetration test

Method used

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  • Rapid testing device of permeability of rocks
  • Rapid testing device of permeability of rocks
  • Rapid testing device of permeability of rocks

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Experimental program
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Embodiment Construction

[0027] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] The structure of the rapid test device for rock permeability characteristics is as follows: figure 1 As shown, it is mainly composed of four parts: a permeameter 1, an axial loading mechanism 2, a permeation circuit, and a confining pressure circuit. The entire device is installed on a vehicle console.

[0029] The structure of the permeameter 1 is as follows figure 2 , is made up of cylinder barrel 23, piston 21, base plate 28, permeable plate 24 and pressure head 22. The two ends of the rock sample 25 are stacked coaxially with the water-permeable plate 24 and the indenter 22 successively, and are wrapped with a heat-shrinkable plastic tube and electrical tape. The wrapped rock sample 25 is put into the groove on the inner bottom plate 28 of the cylinder 23 , and the piston 21 is pressed into the cylinder 23 to form an annular gap 26 between ...

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Abstract

The invention relates to a rapid testing device of permeability of rocks. The rapid testing device comprises an axial loading mechanism, at least one permeameter mounted on the axial loading mechanism, a permeation loop and a confining pressure loop, wherein the permeation loop and the confining pressure loop are connected with the permeameter; the permeameter comprises a cylinder barrel, a piston, a bottom plate, a pressure head, a porous disc and a rock sample; and the axial loading mechanism comprises a support, a screw rod, a dial indicator and a cushion block with a thrust bearing. The device provides confining pressure for the permeameter by virtue of a second plunger pump, and the plunger pump and / or a hand-operated pump and / is used for providing permeation pressure difference for the permeameter. The testing device can simultaneously perform permeability test on a plurality of rock samples, reduce the testing time and further reduce the testing cost. The device is simple to operate and reliable in performances and can be carried to a designated place by a vehicle to carry out test, thereby having extensive practicality.

Description

technical field [0001] The invention relates to a rock permeability test device, which is used for quickly testing the rock permeability parameters. Background technique [0002] The testing of permeability characteristics of rock and soil materials can be divided into two categories: field testing and laboratory testing. Although there are significant differences in the permeability characteristics of rock samples and rock masses, the laboratory test of rock sample permeability is still the main method to test the permeability characteristics of rock masses. The current rock sample permeability laboratory test method and the existing patented technology all focus on the test of the permeability characteristics of a single rock sample, and cannot test the permeability characteristics of multiple rock samples at the same time, and the permeability test cycle required for geotechnical engineering is relatively short long. [0003] In the current testing of the permeability c...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 王东飞张文平修成智王继范屹东四旭飞
Owner SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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