CN109827827B - Device and method for manufacturing frozen soil sample of layered cold-growing structure - Google Patents
Device and method for manufacturing frozen soil sample of layered cold-growing structure Download PDFInfo
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- CN109827827B CN109827827B CN201910265272.7A CN201910265272A CN109827827B CN 109827827 B CN109827827 B CN 109827827B CN 201910265272 A CN201910265272 A CN 201910265272A CN 109827827 B CN109827827 B CN 109827827B
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- G—PHYSICS
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- 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
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- 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
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Abstract
The invention relates to a device and a method for manufacturing a frozen soil sample with a layered cold-growing structure. The temperature control tube, the vacuum tube and the refrigerating tube are all annular and form a closed loop with the temperature control system and are arranged on the surface of the outer wall of the sample cylinder, the temperature control tube, the vacuum tube and the refrigerating tube are all connected with the respective temperature control systems, and the temperature control systems can control the temperature of circulating liquid in the temperature control tube, the vacuum tube and the refrigerating tube; the heat preservation box main body is provided with pipe holes for the temperature control pipe, the vacuum pipe and the refrigeration pipe to pass through and fix the positions of the temperature control pipe, the vacuum pipe and the refrigeration pipe.
Description
Technical Field
The invention relates to a device and a method for manufacturing a frozen soil sample with a layered cold-growing structure.
Background
Frozen earth is a multiphase complex composed of earth particles, liquid water, ice and gas, and earth having a temperature of 0 ℃ or less and containing ice is generally called frozen earth. In nature, frozen soil is seen everywhere, and during the freezing process of soil, the ice forming effect of water in soil during freezing depends on the strength and speed of combined action of internal stress and external stress, and the difference of the strength and speed can cause ice crystals or ice layers and mineral particles to be arranged and combined in different spaces during the freezing process of water in soil, which can lead to different cold formation of frozen soil. According to the division of frozen soil cold-growing structure in frozen soil mechanics (ma Wei, king wide goose), the frozen soil can be divided into an integral structure, a layered structure and a reticular structure, as shown in fig. 1.
When the frozen soil physical and mechanical property test is carried out in a laboratory, remolded soil is generally adopted for the test, and the specific steps are as follows:
(1) crushing undisturbed soil particles, sieving the crushed undisturbed soil particles by a sieve with a required particle size, and drying the sieved soil particles;
(2) adding water with required mass into dry soil for multiple times, stirring, sealing and standing for more than 48h to ensure that all parts of the soil sample contain water uniformly;
(3) and (3) adding the wet soil processed in the step (2) into a mould with a required size for multiple times, compacting, leveling and the like, and then putting the mould into a low-temperature test box to freeze for more than 48 hours (mould-detaching freezing or mould-attaching freezing) to prepare a frozen soil sample required by the test.
The frozen soil sample having an integral structure can be prepared by subjecting the soil sample to the above-described treatment, but the frozen soil sample having a layered structure cannot be prepared. In chinese patent, CN 106226499B discloses a frozen soil test device with combined temperature gradient, which comprises a test box, a sample cylinder, a cold air pump, a pressurizing cover, an air duct, a cold circulation pipe, and a control center, wherein the air duct is arranged to guide cold air to the frozen soil sample, so as to adjust the temperature of the frozen soil sample quickly, the diameter of the air duct is gradually reduced from top to bottom, and the refrigerant in the cold circulation pipe circulates from top to bottom, so as to realize the combined temperature gradient of the frozen soil sample. A temperature gradient frozen soil uniaxial creep test method is disclosed in Chinese patent grant CN103091180B, and the purpose of researching the creep property of the temperature gradient frozen soil can be realized through the cooperation of a pressure cover, a height adjusting cushion block, a convex base, an upper refrigerating plate, a lower refrigerating plate and a heat insulating plate. Both of the above methods can control the temperature gradient inside the frozen soil, but neither method can control the distribution or structural state of ice crystals inside the frozen soil. In the Chinese patent grant, CN 103471884B, an artificial unidirectional freezing and layering sample preparation device suitable for frozen soil with high water (ice) content is disclosed, the temperature of the bottom of a sample cylinder is controlled by a temperature control system and a constant temperature control box, a uniform mixture of soil and water in a flowing plastic state is added from the upper end of a mould in multiple times, and the purpose of preparing a frozen soil sample with high water (ice) content and a layered or integral structure is realized by adjusting the temperature of the bottom of the cylinder, the constant temperature time and the thickness of the uniform mixture of soil and water.
The method for preparing the frozen soil sample with high water content (ice) and layered or integral structure has the following three disadvantages:
(1) the prepared frozen soil sample mainly aims at frozen soil with high water content (ice), and cannot be applied to frozen soil with water content (ice) lower than the saturated water content;
(2) the purpose of controlling the position of the ice-containing layer cannot be realized;
(3) the operation is complex, the freezing temperature, the freezing time and the uniform mixture of soil and water are highly uncontrollable.
In view of the above, there is a need for an apparatus and a method for producing a frozen soil sample with a layered cold growing structure, so as to achieve the purpose of producing a frozen soil sample with a layered cold growing structure in an indoor laboratory.
Disclosure of Invention
The invention aims to provide a device and a method for manufacturing frozen soil samples with a layered cold-growing structure, and the frozen soil samples with the layered cold-growing structure can be prepared in a laboratory by using the device. The invention has the characteristics of simple structure, convenient operation and the like.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the device for manufacturing the frozen soil sample with the layered cold-growing structure comprises a heat preservation box main body, a heat preservation box upper cover, a sample cylinder upper cover, a temperature control pipe, a vacuum pipe, a refrigeration pipe, a base, a temperature sensor, a moisture sensor and a temperature control system. The temperature control tube, the vacuum tube and the refrigerating tube are all annular and form a closed loop with the temperature control system and are arranged on the surface of the outer wall of the sample cylinder, the temperature control tube, the vacuum tube and the refrigerating tube are all connected with the respective temperature control systems, and the temperature control systems can control the temperature of circulating liquid in the temperature control tube, the vacuum tube and the refrigerating tube; the main body of the heat preservation box is provided with pipe holes for the temperature control pipe, the vacuum pipe and the refrigeration pipe to pass through and fix the positions of the temperature control pipe, the vacuum pipe and the refrigeration pipe.
In the device, the insulation box main body, the insulation box upper cover, the sample cylinder and the sample cylinder upper cover are all circular.
In the device, the sample cylinder and the upper cover of the sample cylinder are made of epoxy resin.
In the above device, the base is of an adjustable height type.
A method for making a layered cryogenically-constructed frozen soil sample, comprising the steps of:
firstly, arranging the positions of a temperature control pipe, a vacuum pipe and a refrigerating pipe in an insulation box main body, sequentially arranging the temperature control pipe, the vacuum pipe and the refrigerating pipe from top to bottom in sequence, and connecting the temperature control pipe, the vacuum pipe and the refrigerating pipe with respective temperature control systems;
secondly, adding water with required mass into the dry soil for multiple times, stirring, sealing and placing for more than 48 hours to ensure that all parts of the soil sample contain water uniformly;
opening an upper cover of the sample cylinder, and adding wet soil into the sample cylinder in a proper amount for multiple times, wherein temperature sensors and moisture sensors are embedded at different heights of the soil sample so as to test moisture and temperature changes of different layers;
fourthly, after the upper surface of the soil sample is smoothed, covering an upper cover of the sample cylinder, opening an upper cover of the heat preservation box, placing the sample cylinder on a base inside the heat preservation box main body, adjusting the positions of the temperature control tube, the vacuum tube and the refrigerating tube to enable the sample cylinder to be tightly attached to the outer wall surface of the sample cylinder, and covering the upper cover of the heat preservation box to reduce temperature fluctuation inside the heat preservation box main body;
and fifthly, opening a temperature control system, vacuumizing all the vacuum tubes without circulating the circulating liquid, and adjusting the temperatures of the circulating liquid in the other two tubes as follows: setting the temperature of the circulating liquid in the temperature control pipe to be 1 ℃, and setting the temperature of the circulating liquid in the refrigerating pipe to be-30 ℃;
sixthly, controlling and recording the duration time of circulating liquid in a temperature control pipe and a refrigerating pipe according to real-time data fed back by a temperature sensor and a moisture sensor and by combining the thickness of an ice-containing layer of the frozen soil sample of the layered cryogenicity structure required to be prepared by the test;
and seventhly, adjusting the temperature of the circulating liquid in the temperature control pipe, the vacuum pipe and the refrigerating pipe to be the target temperature of the frozen soil sample, freezing for more than 24 hours, and manufacturing the frozen soil sample with the layered cold-growing structure, which contains a temperature sensor and a moisture sensor.
And eighthly, moving out the prepared frozen soil sample, repeating the steps one to seven, but not burying a temperature sensor and a moisture sensor, wherein the duration time of circulating liquid in the temperature control pipe and the refrigerating pipe arranged in the sixth step is the same as that of the circulating liquid in the temperature control pipe and the refrigerating pipe, and thus the frozen soil sample with the layered cold growing structure can be prepared.
Compared with the prior art, the invention has the beneficial effects that:
the temperature control pipe, the vacuum pipe and the refrigerating pipe are arranged in the arrangement mode, and the temperature control system is matched to ensure that the moisture in the wet soil at the position of the refrigerating pipe is frozen at first to form a freezing frontal surface; according to the mechanical knowledge of frozen soil, moisture in the frozen soil can migrate to a freezing frontal surface, and through the matching of the temperature control pipe, the vacuum pipe and the refrigerating pipe, moisture in wet soil at the upper position and the lower position of the refrigerating pipe can migrate to the position of the refrigerating pipe, so that a large amount of ice crystals are gathered at the position of the refrigerating pipe; and then, freezing the water in other positions of the frozen soil sample by adjusting the temperature of the circulating liquid in the temperature control pipe, the vacuum pipe and the refrigerating pipe to be the target temperature again, finally realizing the purpose of enabling the frozen structure in the frozen soil sample to be distributed in a layered mode, and preparing the frozen soil sample with the layered frozen structure.
Drawings
FIG. 1 is a schematic view showing a frozen soil bulk structure, a layered structure, and a reticulated structure.
FIG. 2 is a sectional view showing the structure of an apparatus for producing a frozen soil sample having a layered cold-growing structure according to the present invention.
FIG. 3 is a schematic diagram of the piping structure of the temperature control pipe, the vacuum pipe and the refrigeration pipe.
The reference numbers in the figures illustrate: 1-integral structure, 2-layered structure, 3-reticular structure, 4-insulation box main body, 5-insulation box upper cover, 6-sample cylinder, 7-sample cylinder upper cover, 8-temperature control tube, 9-vacuum tube, 10-refrigeration tube, 11-base, 12-temperature sensor, 13-moisture sensor, 14-temperature control system, 15-temperature control tube, vacuum tube and pipeline structure of refrigeration tube.
Detailed Description
The invention will be described in further detail with reference to the following drawings and specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the invention, and not all 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.
Example (b):
fig. 2 shows an apparatus for producing a frozen soil sample with a layered cryogenical structure, which comprises an incubator main body 4, an incubator upper cover 5, a sample cylinder 6, a sample cylinder upper cover 7, a temperature control tube 8, a vacuum tube 9, a refrigeration tube 10, a base 11, a temperature sensor 12, a moisture sensor 13 and a temperature control system 14. The temperature control tube 8, the vacuum tube 9 and the refrigerating tube 10 are all annular and form a closed loop with the temperature control system 14 and are arranged on the outer wall surface of the sample cylinder 6, the temperature control tube 8, the vacuum tube 9 and the refrigerating tube 10 are all connected with the respective temperature control systems 14, and the temperature control systems 14 can control the temperature of circulating liquid in the temperature control tube 8, the vacuum tube 9 and the refrigerating tube 10; the insulation can main body 4 is provided with pipe holes for the temperature control pipe 8, the vacuum pipe 9 and the refrigeration pipe 10 to pass through and fix the positions; the insulation can main body 4, the insulation can upper cover 5, the sample cylinder 6 and the sample cylinder upper cover 7 are all round; the sample cylinder 6 and the sample cylinder upper cover 7 are made of epoxy resin; the base 11 is of an adjustable height type;
a method for making a layered cryogenically-constructed frozen soil sample, comprising the steps of:
firstly, arranging the positions of a temperature control pipe 8, a vacuum pipe 9 and a refrigerating pipe 10 in an insulation box main body 4, sequentially arranging the temperature control pipe 8, the vacuum pipe 9 and the refrigerating pipe 10 from top to bottom in sequence, and connecting the temperature control pipe 8, the vacuum pipe 9 and the refrigerating pipe 10 with respective temperature control systems 14;
secondly, adding water with required mass into the dry soil for multiple times, stirring, sealing and placing for more than 48 hours to ensure that all parts of the soil sample contain water uniformly;
thirdly, opening the upper cover 7 of the sample cylinder, and adding wet soil into the sample cylinder 6 in a proper amount for multiple times, wherein temperature sensors 14 and moisture sensors 13 are embedded at different heights of the soil sample so as to test moisture and temperature changes of different layers;
fourthly, after the upper surface of the soil sample is leveled, covering an upper cover 7 of the sample cylinder, opening an upper cover 5 of the heat preservation box, adjusting the height of a base 11, placing the sample cylinder 6 on the base 11 in the heat preservation box main body 4, adjusting the positions of a temperature control pipe 8, a vacuum pipe 9 and a refrigerating pipe 10 to enable the temperature control pipe to be tightly attached to the outer wall surface of the sample cylinder 6, and covering the upper cover 5 of the heat preservation box to reduce the temperature fluctuation in the heat preservation box main body 4;
and fifthly, opening the temperature control system 14, vacuumizing all the vacuum tubes 9 without circulating the circulating liquid, and adjusting the temperatures of the circulating liquids in the other two tubes as follows: the temperature of the circulating liquid in the temperature control pipe 8 is set to be 1 ℃, the temperature of the circulating liquid in the refrigerating pipe 10 is set to be-30 ℃, according to the setting mode, the moisture in the wet soil at the position of the refrigerating pipe 10 can be frozen firstly, so that a freezing frontal surface is formed, the arrangement of the vacuum pipe 9 can reduce the loss of the cold energy of the low-temperature circulating liquid in the refrigerating pipe 10 to the periphery, the temperature control pipe 8 can ensure that the moisture in the wet soil at the position of the temperature control pipe 8 is in an unfrozen state, according to the mechanical knowledge of the frozen soil, the moisture in the frozen soil can migrate to the freezing frontal surface, and through the matching of the temperature control pipe 8, the vacuum pipe 9 and the refrigerating pipe 10, the moisture in the wet soil at the upper position and the lower position of the refrigerating pipe 10 can migrate to the position;
sixthly, controlling and recording the duration time of circulating liquid in the temperature control pipe 8 and the refrigerating pipe 10 according to real-time data fed back by the temperature sensor 14 and the moisture sensor 13 and by combining the thickness of an ice-containing layer of the frozen soil sample of the layered cold-growing structure required to be prepared by the test;
and seventhly, adjusting the temperature of the circulating liquid in the temperature control pipe 8, the vacuum pipe 9 and the refrigerating pipe 10 to be the target temperature of the frozen soil sample, freezing for more than 24 hours, and manufacturing the frozen soil sample with the layered cold-growing structure and containing the temperature sensor 14 and the moisture sensor 13.
And eighthly, moving out the prepared frozen soil sample, repeating the steps one to seven, but not burying the temperature sensor 14 and the moisture sensor 13, wherein the duration of the circulating liquid in the temperature control pipe 8 and the refrigerating pipe 10 arranged in the sixth step is the same as that of the previous circulating liquid, and thus the frozen soil sample with the layered cold growing structure can be prepared.
Claims (4)
1. A method for making a layered cryogenically-constructed frozen soil sample, comprising the steps of:
firstly, arranging the positions of a temperature control pipe (8), a vacuum pipe (9) and a refrigerating pipe (10) in an insulation box main body (4), sequentially arranging the temperature control pipe (8), the vacuum pipe (9) and the refrigerating pipe (10) from top to bottom, and connecting the temperature control pipe (8), the vacuum pipe (9) and the refrigerating pipe (10) with respective temperature control systems (14);
secondly, adding water with required mass into the dry soil for multiple times, stirring, sealing and placing for more than 48 hours to ensure that all parts of the soil sample contain water uniformly;
thirdly, opening an upper cover (7) of the sample cylinder, and adding wet soil into the sample cylinder (6) in a proper amount for multiple times, wherein temperature sensors (14) and moisture sensors (13) are embedded at different heights of the soil sample so as to test moisture and temperature changes of different layers;
fourthly, after the upper surface of the soil sample is leveled, covering an upper cover (7) of the sample cylinder, opening an upper cover (5) of the heat preservation box, placing the sample cylinder (6) on a base (11) in the heat preservation box main body (4), adjusting the positions of a temperature control pipe (8), a vacuum pipe (9) and a refrigerating pipe (10) to enable the sample cylinder to be tightly attached to the outer wall surface of the sample cylinder (6), and covering the upper cover (5) of the heat preservation box to reduce temperature fluctuation in the heat preservation box main body (4);
and fifthly, opening a temperature control system (14), vacuumizing all the vacuum tubes (9) without circulating liquid circulation, and adjusting the temperatures of the circulating liquid in the other two tubes as follows: the temperature of the circulating liquid in the temperature control pipe (8) is set to be 1 ℃, and the temperature of the circulating liquid in the refrigerating pipe (10) is set to be-30 ℃;
sixthly, controlling and recording the duration time of circulating liquid in the temperature control pipe (8) and the refrigerating pipe (10) according to real-time data fed back by the temperature sensor (14) and the moisture sensor (13) and by combining the thickness of an ice-containing layer of the frozen soil sample of the layered cold-growing structure required to be prepared by the test;
seventhly, adjusting the temperature of the circulating liquid in the temperature control pipe (8), the vacuum pipe (9) and the refrigerating pipe (10), setting the temperature to be the target temperature of the frozen soil sample, freezing for more than 24 hours, and completing the manufacture of the frozen soil sample with the layered cold-growing structure and containing the temperature sensor (14) and the moisture sensor (13);
and eighthly, moving out the prepared frozen soil sample, repeating the first step to the seventh step, but not burying the temperature sensor (14) and the moisture sensor (13), and manufacturing the frozen soil sample with the layered cold growing structure by setting the duration of the circulating liquid in the temperature control pipe (8) and the refrigerating pipe (10) in the sixth step to be the same as that in the previous step.
2. The device for realizing the method for manufacturing the frozen soil sample with the layered cold-growing structure of claim 1 consists of a heat preservation box main body (4), a heat preservation box upper cover (5), a sample cylinder (6), a sample cylinder upper cover (7), a temperature control pipe (8), a vacuum pipe (9), a refrigeration pipe (10), a base (11), a temperature sensor (12), a moisture sensor (13) and a temperature control system (14), wherein the temperature control tube (8), the vacuum tube (9) and the refrigeration tube (10) are all annular and form a closed loop with the temperature control system (14), the temperature control system is arranged on the surface of the outer wall of the sample cylinder (6), the temperature control tube (8), the vacuum tube (9) and the refrigerating tube (10) are connected with respective temperature control systems (14), and the temperature control systems (14) can control the temperature of circulating liquid in the temperature control tube (8), the vacuum tube (9) and the refrigerating tube (10); the insulation box main body (4) is provided with pipe holes for the temperature control pipe (8), the vacuum pipe (9) and the refrigeration pipe (10) to pass through and fix the positions.
3. The apparatus according to claim 2 for carrying out the method for making a frozen earth sample of layered cryogenically-constructed structure according to claim 1, wherein: the heat preservation box main body (4), the heat preservation box upper cover (5), the sample cylinder (6) and the sample cylinder upper cover (7) are all circular.
4. The apparatus according to claim 2 for carrying out the method for making a frozen earth sample of layered cryogenically-constructed structure according to claim 1, wherein: the sample cylinder (6) and the sample cylinder upper cover (7) are made of epoxy resin.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265272.7A CN109827827B (en) | 2019-04-03 | 2019-04-03 | Device and method for manufacturing frozen soil sample of layered cold-growing structure |
| PCT/CN2019/111148 WO2020199550A1 (en) | 2019-04-03 | 2019-10-15 | Device and method for preparing layered cryostructured frozen soil sample |
| ZA201908588A ZA201908588B (en) | 2019-04-03 | 2019-12-23 | Device and method for preparing frozen soil sample with layered cryostructure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910265272.7A CN109827827B (en) | 2019-04-03 | 2019-04-03 | Device and method for manufacturing frozen soil sample of layered cold-growing structure |
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| Publication Number | Publication Date |
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| CN109827827A CN109827827A (en) | 2019-05-31 |
| CN109827827B true CN109827827B (en) | 2021-05-18 |
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| CN (1) | CN109827827B (en) |
| WO (1) | WO2020199550A1 (en) |
| ZA (1) | ZA201908588B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109827827B (en) * | 2019-04-03 | 2021-05-18 | 安徽理工大学 | Device and method for manufacturing frozen soil sample of layered cold-growing structure |
| CN110595869A (en) * | 2019-10-29 | 2019-12-20 | 上海映晓电子科技有限公司 | Equipment for preparing frozen soil sample based on contact heat conduction technology in vacuum environment |
| CN114235597B (en) * | 2021-11-01 | 2023-09-29 | 安徽理工大学 | Frozen soil true triaxial rigid loading mold based on temperature gradient and operation method |
| CN114910323B (en) * | 2022-05-07 | 2024-04-09 | 安徽理工大学 | Device for manufacturing frozen soil sample with high ice content and use method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202486125U (en) * | 2012-01-05 | 2012-10-10 | 中国科学院寒区旱区环境与工程研究所 | Experimental device for indoor frozen soil freezing and thawing circulation process |
| CN103091180A (en) * | 2013-01-11 | 2013-05-08 | 中国矿业大学 | Uniaxial creep testing device and method for frozen earth with temperature gradient |
| CN103471884A (en) * | 2013-08-21 | 2013-12-25 | 中国科学院寒区旱区环境与工程研究所 | Manual unidirectional freezing layered sample preparation device suitable for high water (ice) content frozen earth |
| CN103884581A (en) * | 2014-03-24 | 2014-06-25 | 中国矿业大学 | Hollow frozen soil testing device and using method thereof |
| CN104215749A (en) * | 2014-09-15 | 2014-12-17 | 中国矿业大学 | Realization method of combined temperature gradient in frozen earth |
| CN104597222A (en) * | 2015-01-13 | 2015-05-06 | 河南大学 | Large frozen soil model test system with moisturizing function and frost heaving test function |
| CN105044147A (en) * | 2015-07-10 | 2015-11-11 | 中国矿业大学 | Near-phase change zone frozen soil thermal conductivity coefficient determination device and method |
| CN105910868A (en) * | 2016-06-15 | 2016-08-31 | 浙江大学城市学院 | Remolded soil forming and freezing integrated test equipment |
| KR101675368B1 (en) * | 2015-08-10 | 2016-11-11 | 한국건설기술연구원 | Apparatus and Method for Freezing and Thawing of Soil Specimen |
| CN207764217U (en) * | 2018-02-02 | 2018-08-24 | 中国地质大学（北京） | A kind of earth pillar device of the one-dimensional hydro-thermal salt migration of closed simulation frozen soil |
| CN108956386A (en) * | 2018-07-12 | 2018-12-07 | 东南大学 | The model test apparatus and method of organic pollutant migration in a kind of simulation seasonal frozen ground |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297030B (en) * | 2014-10-15 | 2017-08-01 | 河海大学 | A kind of sample preparation device and method for making sample for simulating frozen soil self-assembling formation process |
| CN106644653A (en) * | 2017-02-07 | 2017-05-10 | 中国科学院寒区旱区环境与工程研究所 | Device and method for preparing and measuring frozen soil sample |
| CN109239124A (en) * | 2018-09-04 | 2019-01-18 | 安徽理工大学 | The Artificial Frozen Soil and the coefficient experimental rig of the borehole wall and method of various soils |
| CN109827827B (en) * | 2019-04-03 | 2021-05-18 | 安徽理工大学 | Device and method for manufacturing frozen soil sample of layered cold-growing structure |
-
2019
- 2019-04-03 CN CN201910265272.7A patent/CN109827827B/en active Active
- 2019-10-15 WO PCT/CN2019/111148 patent/WO2020199550A1/en active Application Filing
- 2019-12-23 ZA ZA201908588A patent/ZA201908588B/en unknown
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202486125U (en) * | 2012-01-05 | 2012-10-10 | 中国科学院寒区旱区环境与工程研究所 | Experimental device for indoor frozen soil freezing and thawing circulation process |
| CN103091180A (en) * | 2013-01-11 | 2013-05-08 | 中国矿业大学 | Uniaxial creep testing device and method for frozen earth with temperature gradient |
| CN103471884A (en) * | 2013-08-21 | 2013-12-25 | 中国科学院寒区旱区环境与工程研究所 | Manual unidirectional freezing layered sample preparation device suitable for high water (ice) content frozen earth |
| CN103884581A (en) * | 2014-03-24 | 2014-06-25 | 中国矿业大学 | Hollow frozen soil testing device and using method thereof |
| CN104215749A (en) * | 2014-09-15 | 2014-12-17 | 中国矿业大学 | Realization method of combined temperature gradient in frozen earth |
| CN104597222A (en) * | 2015-01-13 | 2015-05-06 | 河南大学 | Large frozen soil model test system with moisturizing function and frost heaving test function |
| CN105044147A (en) * | 2015-07-10 | 2015-11-11 | 中国矿业大学 | Near-phase change zone frozen soil thermal conductivity coefficient determination device and method |
| CN105044147B (en) * | 2015-07-10 | 2018-01-05 | 中国矿业大学 | A kind of nearly phase change zone thermal conductivity of frozen soils measure apparatus and method |
| KR101675368B1 (en) * | 2015-08-10 | 2016-11-11 | 한국건설기술연구원 | Apparatus and Method for Freezing and Thawing of Soil Specimen |
| CN105910868A (en) * | 2016-06-15 | 2016-08-31 | 浙江大学城市学院 | Remolded soil forming and freezing integrated test equipment |
| CN207764217U (en) * | 2018-02-02 | 2018-08-24 | 中国地质大学（北京） | A kind of earth pillar device of the one-dimensional hydro-thermal salt migration of closed simulation frozen soil |
| CN108956386A (en) * | 2018-07-12 | 2018-12-07 | 东南大学 | The model test apparatus and method of organic pollutant migration in a kind of simulation seasonal frozen ground |
Non-Patent Citations (3)
| Title |
|---|
| A Study of Coupled Creep Damaged Constitutive Model of Artificial Frozen Soil;Dongwei Li 等;《Advances in Materials Science and Engineering》;20181231;第1-10页 * |
| Energy Absorption Characteristics of Frozen Soil Based on SHPB Test;Qin-yong Ma 等;《Advances in Materials Science and Engineering》;20181231;第1-10页 * |
| Influence of freeze-thaw cycles on dynamic compressive strength and energy distribution of soft rock specimen;Qinyong Ma 等;《Cold Regions Science and Technology》;20180518;第10-17页 * |
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| Publication number | Publication date |
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| CN109827827A (en) | 2019-05-31 |
| WO2020199550A1 (en) | 2020-10-08 |
| ZA201908588B (en) | 2020-11-25 |
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