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A rock sample high-pressure water sealing device and its application method

A technology of rock sample and sealing device, which is applied in measurement device, using stable tension/pressure test material strength, suspension and porous material analysis, etc., can solve problems such as unstable sealing effect, achieve cost saving, experimental Simple steps to increase the effect of sealing effect

Inactive Publication Date: 2018-01-12
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of unstable sealing effect existing in the prior art, the present invention provides a rock sample high-pressure water sealing device with stable sealing

Method used

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  • A rock sample high-pressure water sealing device and its application method
  • A rock sample high-pressure water sealing device and its application method
  • A rock sample high-pressure water sealing device and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A high-pressure water sealing device for a rock sample, comprising an elastic casing 1 and an upper gland 7, the elastic casing 1 is in a cylindrical shape, and the inner wall of the elastic casing 1 is provided with multiple first sealing rings evenly distributed from top to bottom 2; the lower bottom surface of the elastic casing 1 is provided with a plurality of water inlet holes 4; the inside of the elastic casing 1 is used to place rock samples 9; the upper part of the elastic casing 1 is sealed by an upper gland 7, and the upper gland 7 is sealed. The gland 7 is provided with a plurality of water outlet holes 8; the lower end of the upper gland 7 is provided with an annular sealing plate 6, and the upper end surface of the elastic shell 1 is provided with an annular sealing groove 3, and the sealing The plate 6 is inserted into the sealing groove 3; the inner wall and the outer wall of the sealing plate 6 are provided with multiple second sealing rings 5 ​​evenly d...

Embodiment 2

[0041] The present invention provides a method for using a rock sample high-pressure water sealing device in the above-mentioned embodiment 1, and its use steps are as follows:

[0042] The first step is to apply sealant on the inner wall and upper end surface of the elastic shell 1, or the bottom edge of the upper gland 7 and the side of the rock sample 9; apply the sealant on the sealing plate 6 or the sealing groove 3.

[0043] In the second step, the rock sample 9 is placed in the elastic casing 1 , the upper gland 7 is installed on the upper end of the elastic casing 1 , and the sealing plate 6 is inserted into the sealing groove 3 .

[0044] In the third step, the upper pressing plate 15 and the lower pressing plate 16 are respectively placed on the upper part of the upper pressing cover 7 and the lower end of the elastic shell 1, and the water inlet pipe 18 is connected with the water inlet hole 4, and the water outlet pipe 17 is connected with the water outlet hole 8. ...

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Abstract

A high-pressure water sealing device for a rock sample, comprising an upper gland and an elastic casing with a sealing groove and multiple first sealing rings; the upper gland is provided with a sealing plate capable of being inserted into the sealing groove; The multi-circle second sealing ring, the cross sections of the first sealing ring and the second sealing ring are both V-shaped. The upper part of the upper gland is abutted with the upper pressure plate; the lower part of the elastic shell is abutted with the lower pressure plate, and the plastic film wraps the upper pressure plate, the lower pressure plate and the side of the elastic shell; between the upper gland and the upper end surface of the elastic shell, the rock test Sealant is applied between the sample and the elastic shell, and between the sealing plate and the sealing groove. The first sealing ring, the second sealing ring, the plastic film and the sealant can all play a sealing role and increase the sealing effect; among them, the sealing ring has multiple rings, which can achieve a step-by-step sealing effect; the above-mentioned high-pressure water sealing device can also circulate use, saving costs. The above-mentioned experimental steps are simple, and the operation process of the above-mentioned high-pressure water sealing device is simple and convenient.

Description

technical field [0001] The invention relates to a large-size cubic rock sample test device, in particular to a rock sample test device capable of effectively sealing high-pressure water. Background technique [0002] The coupling of rock stress and seepage has always been a hot spot in the field of rock mechanics. Research on the deformation and failure of rock samples under the combined action of high water pressure and true triaxial load has important theoretical and theoretical implications for the safety and stability of geotechnical engineering. Practical significance. [0003] The mechanical tests of rocks under the action of osmotic water pressure and true triaxial loading have achieved fruitful results. The key factor for the success of such tests is the sealing technology of water flow. At present, known permeable water sealing devices or materials in the field of rock mechanics testing include heat-shrinkable plastic materials, silica gel and rubber sleeves, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/12G01N15/08
Inventor 尹立明郭惟嘉路畅陈军涛石南孙文斌陈绍杰
Owner SHANDONG UNIV OF SCI & TECH