CN113466107A - Water permeability sleeve for indoor test and manufacturing method thereof - Google Patents
Water permeability sleeve for indoor test and manufacturing method thereof Download PDFInfo
- Publication number
- CN113466107A CN113466107A CN202110779263.7A CN202110779263A CN113466107A CN 113466107 A CN113466107 A CN 113466107A CN 202110779263 A CN202110779263 A CN 202110779263A CN 113466107 A CN113466107 A CN 113466107A
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- cylinder
- sand
- metal mesh
- sleeve
- water permeability
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 230000035699 permeability Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 37
- 239000004576 sand Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 30
- 239000006004 Quartz sand Substances 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 238000009533 lab test Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 229910000278 bentonite Inorganic materials 0.000 abstract description 12
- 239000000440 bentonite Substances 0.000 abstract description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract description 12
- 239000011435 rock Substances 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 239000012466 permeate Substances 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000002927 high level radioactive waste Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009375 geological disposal Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Dispersion Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides an indoor test water permeability sleeve and a manufacturing method thereof. The water permeability sleeve for the indoor test comprises an inner cylinder and an outer cylinder arranged on the outer side of the inner cylinder, wherein the inner cylinder is a sand cylinder, and the outer cylinder is a metal mesh cylinder. The sand cylinders allow for liquid penetration, enabling simulation of permeable surrounding rock media surrounding a subterranean treatment reservoir. The metal mesh cartridge also allows liquid to penetrate and acts as a reinforcement to prevent the relatively high dry density bentonite sample (placed inside the inner cartridge) from creating a large expansive force upon absorbing water during testing and thereby damaging the sand cartridge.
Description
Technical Field
The invention relates to a geotechnical engineering test device, in particular to a water-permeable sleeve and a manufacturing method thereof.
Background
The disposal reservoir of the high-level radioactive waste is located in a stratum of 500-1000 m underground, underground water existing in a deep environment permeates into a buffer backfill barrier area in the disposal reservoir through a surrounding rock disturbance area, the performance of a buffer backfill material is greatly degraded due to the permeation of the underground water, and the corrosion of a waste packaging container and the risk that radioactive nuclides are possibly leaked are increased. The research on the influence of groundwater infiltration on the internal system of the disposal reservoir through the surrounding rock of the disposal reservoir is an important topic in the high-level waste geological disposal research work. At present, no on-site underground laboratory is built in China, so that a device which can simulate permeable surrounding rocks is required to be searched for relevant research on influence of underground water on a system in a disposal reservoir under laboratory conditions.
Disclosure of Invention
In order to simulate the disposal reservoir surrounding rock through which deep underground water flow can permeate and further study the influence of permeated underground water on a bentonite barrier in the disposal reservoir and the damage to a metal tank for storing wastes, the invention provides the water permeability sleeve for the indoor test and the manufacturing method thereof, which are used for simulating the water permeable surrounding rock around the underground disposal reservoir and studying the change condition of the water solution to the bentonite property caused by the permeation in the buffer backfilled bentonite body in the two-dimensional horizontal direction.
The invention provides an indoor test water permeability sleeve, which comprises:
the inner cylinder is a sand cylinder;
the outer cylinder is arranged on the outer side of the inner cylinder and is a metal mesh cylinder.
The sand cylinder allows liquid to permeate, and can simulate surrounding rocks with certain permeability around an underground disposal warehouse. The metal mesh cylinder also allows liquid to permeate, plays a certain role in strength and stability, and prevents the sand cylinder from being damaged by large expansion force generated when a high-density bentonite sample (arranged in the inner cylinder) absorbs water during testing.
Further, the single grid area of the metal mesh cylinder is less than 1 cm.
Further, the single mesh area of the metal mesh cylinder is 0.5 cm.
Further, the material of the metal mesh cylinder is stainless steel.
The manufacturing method of the indoor test water permeability sleeve comprises the following steps:
placing the metal mesh cylinder into a mold with a cylindrical cavity;
uniformly mixing quartz sand and epoxy resin powder, and filling the mixture into a cylindrical cavity of the mold;
and (3) placing the mould in an electric heating blowing dry box, and keeping the mould for 5 hours at the temperature of 140 ℃ so that the quartz sand and the epoxy resin powder are solidified to form a sand cylinder and are bonded with the metal mesh cylinder.
Further, the maximum particle size of the quartz sand is 0.2 mm.
Further, the mass ratio of the quartz sand to the epoxy resin powder is 50: 3.
The invention has the beneficial effects that: the laboratory scale circumferential permeable indoor test water permeability sleeve is provided, can simulate near-field surrounding rock with certain water permeability in an underground disposal warehouse, is high in structural strength, and can be used for researching the performance of a buffer backfill system under the circumferential permeability condition; and the method for manufacturing the water permeability sleeve for the indoor test is simple to operate, convenient to use and high in efficiency.
Drawings
Fig. 1 is a schematic view of a tub according to an embodiment of the present invention.
FIG. 2 is a schematic view of a laboratory test permeable sleeve according to one embodiment of the present invention.
FIG. 3 is a schematic view of a laboratory test permeable sleeve according to one embodiment of the present invention for use in a simulation test.
The reference signs explain: 1-outer cylinder, 2-inner cylinder, 3-filling sample, 4-water tank, 5-solution, 6-bolt, 7-nut, 8-metal base and 9-metal top plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
As shown in figures 1 and 2, the indoor test water permeability sleeve comprises an outer cylinder 1 and an inner cylinder 2 which are coaxial, wherein the outer cylinder 1 is arranged on the outer side of the inner cylinder 2. Wherein, the outer cylinder 1 is a metal mesh cylinder, and the inner cylinder 2 is a sand cylinder. In this embodiment, the metal mesh cylinder is a cylinder surrounded by rectangular stainless steel mesh, and in other embodiments, the metal mesh cylinder may also be a metal cylinder with hollow grids. The sand cylinder is prepared by mixing quartz sand and epoxy resin powder and then carrying out heat treatment.
Shown in figure 1 is a netted section of thick bamboo of metal, a netted section of thick bamboo of metal is used for improving telescopic intensity, thereby prevents that the bentonite sample of high dry density from producing great bulging force when absorbing water and destroying the sand section of thick bamboo, and netted section of thick bamboo of metal is covered with regular net round hole for hydroenergy sees through the mesh infiltration and passes through the sand section of thick bamboo. A laboratory test permeable sleeve is shown in fig. 2. The bentonite sample generates expansive force in the water absorption process, and the expansive force generated by the bentonite is larger when the saturation degree is low and the dry density is high. A stainless steel mesh cylinder is added on the periphery of the sand cylinder to prevent the sand cylinder from being damaged by large expansion force.
The manufacturing method of the water-permeable sand cylinder comprises the following steps: adopting clean quartz sand with the maximum grain diameter of 0.2mm, fully mixing the quartz sand and epoxy resin powder according to the mass ratio of 50:3, and filling the quartz sand and the epoxy resin powder into a die with a cylindrical cavity; and then putting the sand cylinder into a forced air drying oven with the temperature of 140 ℃ for drying for 5 hours, then taking the sand cylinder out for standing at room temperature, and after natural cooling, pushing the formed sand cylinder out of the mold.
In use, the laboratory test permeable sleeve is fitted with a water tank 4, a metal instrument, to simulate the infiltration of groundwater solution through a permeable medium in a two-dimensional radial direction into the bentonite buffer backfill material, as shown in figure 3. Wherein the metal instrument includes metal base 8, bolt 6 and metal roof 9, all is equipped with annular groove and four bolt holes on metal base 8 and the metal roof 9. The well pressed bentonite cylindrical sample is placed in the inner cylinder 2 of the indoor test water permeability sleeve, then the indoor test water permeability sleeve is placed in a metal instrument, the metal instrument is covered with the metal top plate 9, at the moment, two ends of the indoor test water permeability sleeve are respectively inserted into the annular grooves in the metal base 8 and the metal top plate 9, the bolt 6 penetrates through the bolt hole and is fastened by the nut, and finally the whole indoor test water permeability sleeve is placed in the water tank 4. And standing for a set experiment time, wherein the liquid level of the solution in the water tank 4 is kept to submerge the top of the metal instrument. And after the experimental time is up, taking out the bentonite sample from the interior of the indoor test water permeability sleeve, continuing to carry out subsequent experimental tests, and quantitatively researching the seepage condition of the bentonite under the condition of aqueous solution.
The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also fall into the scope of the invention, and the scope of the invention should be defined by the claims.
Claims (7)
1. The utility model provides an indoor test water permeability sleeve which characterized in that includes:
the inner cylinder is a sand cylinder;
the outer cylinder is arranged on the outer side of the inner cylinder and is a metal mesh cylinder.
2. The laboratory test permeable sleeve of claim 1, wherein: the area of a single grid of the metal mesh cylinder is less than 1 cm.
3. The laboratory test permeable sleeve of claim 2, wherein: the area of a single grid of the metal mesh cylinder is 0.5 cm.
4. The laboratory test permeable sleeve of claim 1, wherein: the metal mesh cylinder is made of stainless steel.
5. The method of making a laboratory test permeable sleeve of claim 1 including the steps of:
placing the metal mesh cylinder into a mold with a cylindrical cavity;
uniformly mixing quartz sand and epoxy resin powder, and filling the mixture into a cylindrical cavity of the mold;
and (3) placing the mould in a blowing dry environment at 140 ℃ for 5 hours, so that the quartz sand and the epoxy resin powder are solidified to form a sand cylinder and are bonded with the metal mesh cylinder.
6. The method according to claim 5, wherein the maximum grain size of the silica sand is 0.2 mm.
7. The manufacturing method according to claim 5, wherein the mass ratio of the quartz sand to the epoxy resin powder is 50: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779263.7A CN113466107A (en) | 2021-07-09 | 2021-07-09 | Water permeability sleeve for indoor test and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779263.7A CN113466107A (en) | 2021-07-09 | 2021-07-09 | Water permeability sleeve for indoor test and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113466107A true CN113466107A (en) | 2021-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110779263.7A Pending CN113466107A (en) | 2021-07-09 | 2021-07-09 | Water permeability sleeve for indoor test and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN113466107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527040A (en) * | 2022-03-03 | 2022-05-24 | 邱俊 | Water permeability sleeve device for indoor test |
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| CN203643304U (en) * | 2013-12-17 | 2014-06-11 | 河海大学 | Testing device for researching seepage deformation under condition of variation of on-way seepage flow velocity |
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| CN107179227A (en) * | 2017-06-27 | 2017-09-19 | 同济大学 | A kind of triaxial test sample preparation device |
| CN107389458A (en) * | 2017-06-23 | 2017-11-24 | 北京交通大学 | Balancing gate pit based on carbon fibre composite |
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| CN208155807U (en) * | 2018-05-31 | 2018-11-27 | 西安建筑科技大学 | A kind of indoor simulation equipment for permeating fracture grouting |
| CN112198104A (en) * | 2020-09-30 | 2021-01-08 | 武汉大学 | Device and method for evaluating drainage performance of concealed pipe material |
| CN213364541U (en) * | 2020-11-05 | 2021-06-04 | 青岛第一市政工程有限公司 | Water permeability coefficient tester for permeable cement stabilized macadam |
| CN215339431U (en) * | 2021-07-09 | 2021-12-28 | 东华理工大学 | Indoor experimental water permeability sleeve |
-
2021
- 2021-07-09 CN CN202110779263.7A patent/CN113466107A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074269A (en) * | 1991-12-16 | 1993-07-14 | 奥的斯工程有限公司 | Filter and load part in advance in the well |
| CN201653865U (en) * | 2010-01-23 | 2010-11-24 | 中国矿业大学 | Experimental facility for compression and permeability characteristics of filling slurry of overburden separate-layer zone |
| CN203643304U (en) * | 2013-12-17 | 2014-06-11 | 河海大学 | Testing device for researching seepage deformation under condition of variation of on-way seepage flow velocity |
| CN104675369A (en) * | 2015-02-12 | 2015-06-03 | 安东石油技术（集团）有限公司 | Sand control sieve pipe and manufacturing method of sand control sieve pipe |
| CN107389458A (en) * | 2017-06-23 | 2017-11-24 | 北京交通大学 | Balancing gate pit based on carbon fibre composite |
| CN107179227A (en) * | 2017-06-27 | 2017-09-19 | 同济大学 | A kind of triaxial test sample preparation device |
| CN208076285U (en) * | 2018-04-28 | 2018-11-09 | 西安建筑科技大学 | A kind of test flume equipment of infiltration fracture grouting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527040A (en) * | 2022-03-03 | 2022-05-24 | 邱俊 | Water permeability sleeve device for indoor test |
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