CN105158438A - Tester for soil frost-heaving ratio - Google Patents
Tester for soil frost-heaving ratio Download PDFInfo
- Publication number
- CN105158438A CN105158438A CN201510510452.9A CN201510510452A CN105158438A CN 105158438 A CN105158438 A CN 105158438A CN 201510510452 A CN201510510452 A CN 201510510452A CN 105158438 A CN105158438 A CN 105158438A
- Authority
- CN
- China
- Prior art keywords
- top cover
- sample box
- circulation fluid
- tester
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
A tester for a soil frost-heaving ratio comprises a base support and a thermostat mounted on the base support, wherein a test platform supported by support rods is arranged in the thermostat, a sample box is arranged on the test platform and adopts a round structure, a hollow structure is arranged in the middle of the sample box, and a pressurization system, a temperature detection system and a deformation detection system are arranged on the sample box; the pressurization system comprises an upper top cover, a lower top cover, an upper bottom plate, a lower bottom plate and a screw rod; the temperature detection system comprises a thermistor thermometer; the deformation detection system comprises a displacement sensor; the upper top cover and the lower bottom plate are jointly connected with a temperature control system and a water replenishment system. The tester can accurately test the frost-heaving ratio of a soil sample and is applicable to detection of different kinds of soil at different freezing temperatures, and a proportional relation between frost heaving force and the frost-heaving ratio is obtained. The tester is simple in structure and convenient to operate and contributes to research of the frost-heaving rule of the soil sample.
Description
Technical field
The present invention relates to Geotechnical Engineering field, is exactly specifically a kind of native frozen-heave factor tester.
Background technology
The distortion of soil body differential frost heave is one of key factor of cold regions engineering considerable damage, therefore, before every engineering is carried out, frost heave evaluation must be made to the soil body of engineering location, to take corresponding measure, guarantee the safe and reliable of engineering structure, the essential characteristic value of body frost heaving distortion is frozen-heave factor, but because the conditions such as the various places depth of freezing are different, its frozen-heave factor value differs greatly, for the ease of comparing the power of frost-heaving deformation, therefore, adopt the ratio of frozen-heave factor and this Frozen Soil layer thickness, namely frozen-heave factor (with percent basis) is as the eigenwert of body frost heaving.
Frost heave is that the soil body is under certain water cut, after temperature is reduced to subzero, Bound moisture migration in soil body hole is gathered to freezing front place, congeal into ice, soil body volume increases, produce outside acting force, different soil property is in different water cut situations, its frost value is different, needed to test the frozen-heave factor of the soil body residing for it before building roadbed and building lot, and present measuring equipment can not simulate extraneous actual state completely, soil sample is tested, in test process, the temperature of the testing environment of soil sample can have a huge impact test point configuration, need to detect accurately soil sample in the process detected simultaneously, but the time detected is longer, need to control accurately in the process of operation, and detailed record is carried out to test result, just can draw the proportionate relationship of soil sample acting force and frozen-heave factor under different environment temperatures, therefore a kind of accurate control is needed badly and can the testing tool of the extraneous actual state of real simulation, and realize the test to soil sample frozen-heave factor by artificial intelligence control.
Summary of the invention
The object of the present invention is to provide a kind of native frozen-heave factor tester, this tester accurately can test the frozen-heave factor of soil sample, and be applicable to different soil property detect under different freezing temperature, draw the proportionate relationship of frost-heave force and frozen-heave factor, structure is simple, easy to operate, be convenient to the frost heave rule studying soil sample.
The present invention solves the technical scheme that its technical matters takes: a kind of native frozen-heave factor tester, comprise base to support, also comprise the constant temperature oven being arranged on base and supporting, described constant temperature oven inside is provided with the test platform of they sup-port, described test platform is provided with sample box, described sample box is circular configuration, and the centre of sample box is hollow structure, described sample box is provided with compression system, system for detecting temperature and deformation detection system; Described compression system comprises upper top cover, lower top cover, upper plate, lower shoe and leading screw; Described system for detecting temperature comprises compensation by thermistor; Described deformation detection system comprises displacement transducer; Described upper top cover and lower shoe are connected with temperature control system and water charging system jointly, and described temperature control system comprises temperature controller, positive temperature circulation fluid pipeline and subzero temperature circulation fluid pipeline.
As optimization, be provided with circulation line at cold night, well heater and compensation by thermistor in described constant temperature oven, described compensation by thermistor connects temperature controller.
As optimization, the outside of described sample box is provided with equally distributed compensation by thermistor patchhole along short transverse, described compensation by thermistor lead to sample box inside and with the contact internal walls of sample box.
As optimization, the diameter of described upper top cover, lower top cover, upper plate, lower shoe is all equal with the internal diameter of sample box, described upper top cover is provided with subzero temperature circulation fluid to import and export and water supplement port, described subzero temperature circulation fluid is imported and exported and is connected with subzero temperature circulation fluid pipeline, described water supplement port is connected with water charging system, described lower shoe is provided with positive temperature circulation fluid to import and export, described positive temperature circulation fluid is imported and exported and is connected with positive temperature circulation fluid pipeline.
As optimization, described lower top cover and upper plate are hollow structure, and are provided with equally distributed hole.
As optimization, described support bar is provided with travel(l)ing rest A and travel(l)ing rest B, described displacement transducer is arranged on travel(l)ing rest B.
As optimization, the material of described upper top cover, lower top cover, upper plate, lower shoe is copper.
As optimization, described leading screw is provided with pressure transducer.
The invention has the beneficial effects as follows: compared with prior art, the native frozen-heave factor tester of one of the present invention, this tester measuring accuracy is high, accurately can test the frozen-heave factor of soil sample, and be applicable to different soil property detect under different freezing temperature, whole test environment completes in constant temperature oven, real simulation reality, soil sample is incubated, pressurize in upper and lower both sides, by being provided with uniform hole and the lower top cover of hollow structure and upper plate make the cold temperature of constantly circulation evenly pass to specimen surface, by system for detecting temperature and deformation detection system, also has the pressure transducer on compression system, detect the proportionate relationship drawing frost-heave force and frozen-heave factor, structure is simple, easy to operate, be convenient to the frost heave rule studying soil sample.
Accompanying drawing explanation
Fig. 1 is overall construction drawing of the present invention;
Fig. 2 is another stereographic map of the present invention;
Fig. 3 is sample box cut-open view of the present invention;
Wherein, 1 base support, 2 constant temperature ovens, 3 test platforms, 4 support bars, 5 test boxs, 6 upper top covers, 7 times top covers, 8 upper plates, 9 lower shoes, 10 leading screws, 11 compensations by thermistor, 12 displacement transducers, 13 subzero temperature circulation fluid pipelines, 14 positive temperature circulation fluid pipelines, 15 compensation by thermistor patchholes, 16 subzero temperature circulation fluid import and export, 17 positive temperature circulation fluid import and export, 18 water supplement ports, 19 travel(l)ing rest A, 20 travel(l)ing rest B, 21 holes, 22 pressure transducers.
Embodiment
As Figure 1-3 in embodiment, a kind of native frozen-heave factor tester, comprise base and support 1, also comprise the constant temperature oven 2 be arranged in base support 1, constant temperature oven 2 inside is provided with the test platform 3 of they sup-port 4, test platform 3 is provided with sample box 5, and sample box 5 is circular configuration, the centre of sample box 5 is hollow structure, sample box 5 is provided with compression system, system for detecting temperature and deformation detection system; Compression system comprises upper top cover 6, lower top cover 7, upper plate 8, lower shoe 9 and leading screw 10; System for detecting temperature comprises compensation by thermistor 11; Deformation detection system comprises displacement transducer 12; Upper top cover 6 and lower shoe 9 are connected with temperature control system and water charging system jointly, and temperature control system comprises temperature controller, positive temperature circulation fluid pipeline 14 and subzero temperature circulation fluid pipeline 13.
Be provided with circulation line at cold night, well heater and compensation by thermistor in constant temperature oven 2, compensation by thermistor connects temperature controller.
The outside of sample box 5 is provided with equally distributed compensation by thermistor patchhole 15 along short transverse, compensation by thermistor 11 lead to sample box 5 inside and with the contact internal walls of sample box 5.
The diameter of upper top cover 6, lower top cover 7, upper plate 8, lower shoe 9 is all equal with the internal diameter of sample box 5, upper top cover 6 is provided with subzero temperature circulation fluid and imports and exports 16 and water supplement port 18, subzero temperature circulation fluid is imported and exported 16 and is connected with subzero temperature circulation fluid pipeline 13, water supplement port 18 is connected with water charging system, lower shoe 9 is provided with positive temperature circulation fluid and imports and exports 17, positive temperature circulation fluid is imported and exported 17 and is connected with positive temperature circulation fluid pipeline 14.
Lower top cover 7 and upper plate 8 are hollow structure, and are provided with equally distributed hole 21.
Support bar 4 is provided with travel(l)ing rest A19 and travel(l)ing rest B20, displacement transducer 12 is arranged on travel(l)ing rest B20.
The material of upper top cover 6, lower top cover 7, upper plate 8, lower shoe 9 is copper.
Leading screw 10 is provided with pressure transducer 22.
The native frozen-heave factor tester of one of the present invention, this tester measuring accuracy is high, accurately can test the frozen-heave factor of soil sample, and be applicable to different soil property detect under different freezing temperature, whole test environment completes in constant temperature oven, real simulation reality, pattern is incubated, pressurize in upper and lower both sides, by being provided with uniform hole and the lower top cover of hollow structure and upper plate make the cold temperature of constantly circulation evenly pass to specimen surface, by system for detecting temperature and deformation detection system, also has the pressure transducer on compression system, detect the proportionate relationship drawing frost-heave force and frozen-heave factor, structure is simple, easy to operate, be convenient to the frost heave rule studying soil sample.
Above-mentioned embodiment is only concrete case of the present invention; scope of patent protection of the present invention includes but not limited to product form and the style of above-mentioned embodiment; any meet claims of the present invention a kind of native frozen-heave factor tester and any person of an ordinary skill in the technical field to its suitable change done or modification, all should fall into scope of patent protection of the present invention.
Claims (8)
1. a native frozen-heave factor tester, comprise base and support (1), it is characterized in that: also comprise the constant temperature oven (2) be arranged on base support (1), described constant temperature oven (2) inside is provided with the test platform (3) of they sup-port (4), described test platform (3) is provided with sample box (5), described sample box (5) is circular configuration, the centre of sample box (5) is hollow structure, and described sample box (5) is provided with compression system, system for detecting temperature and deformation detection system; Described compression system comprises upper top cover (6), lower top cover (7), upper plate (8), lower shoe (9) and leading screw (10); Described system for detecting temperature comprises compensation by thermistor (11); Described deformation detection system comprises displacement transducer (1) (2); Described upper top cover (6) and lower shoe (9) are connected with temperature control system and water charging system jointly, and described temperature control system comprises temperature controller, positive temperature circulation fluid pipeline (14) and subzero temperature circulation fluid pipeline (13).
2. the native frozen-heave factor tester of one according to claim 1, is characterized in that: be provided with circulation line at cold night, well heater and compensation by thermistor in described constant temperature oven (2), and described compensation by thermistor connects temperature controller.
3. the native frozen-heave factor tester of one according to claim 1, it is characterized in that: the outside of described sample box (5) is provided with equally distributed compensation by thermistor patchhole (15) along short transverse, described compensation by thermistor (11) lead to sample box (5) inside and with the contact internal walls of sample box (5).
4. the native frozen-heave factor tester of one according to claim 1, it is characterized in that: described upper top cover (6), lower top cover (7), upper plate (8), the diameter of lower shoe (9) is all equal with the internal diameter of sample box (5), described upper top cover (6) is provided with subzero temperature circulation fluid and imports and exports (16) and water supplement port (18), described subzero temperature circulation fluid is imported and exported (16) and is connected with subzero temperature circulation fluid pipeline (13), described water supplement port (18) is connected with water charging system, described lower shoe (9) is provided with positive temperature circulation fluid and imports and exports (17), described positive temperature circulation fluid is imported and exported (17) and is connected with positive temperature circulation fluid pipeline (14).
5. the native frozen-heave factor tester of one according to claim 1, is characterized in that: described lower top cover (7) and upper plate (8) are hollow structure, and are provided with equally distributed hole (21).
6. the native frozen-heave factor tester of one according to claim 1, is characterized in that: described support bar (4) is provided with travel(l)ing rest A(19) and travel(l)ing rest B(20), described displacement transducer (12) is arranged on travel(l)ing rest B(20) on.
7. the native frozen-heave factor tester of one according to claim 1, is characterized in that: the material of described upper top cover (6), lower top cover (7), upper plate (8), lower shoe (9) is copper.
8. the native frozen-heave factor tester of one according to claim 1, is characterized in that: described leading screw (10) is provided with pressure transducer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510452.9A CN105158438A (en) | 2015-08-19 | 2015-08-19 | Tester for soil frost-heaving ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510452.9A CN105158438A (en) | 2015-08-19 | 2015-08-19 | Tester for soil frost-heaving ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105158438A true CN105158438A (en) | 2015-12-16 |
Family
ID=54799362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510510452.9A Pending CN105158438A (en) | 2015-08-19 | 2015-08-19 | Tester for soil frost-heaving ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105158438A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655930A (en) * | 2017-10-25 | 2018-02-02 | 安徽理工大学 | Frost heave parameter determinator under controllable temperature complicated boundary condition |
| CN107907562A (en) * | 2017-12-28 | 2018-04-13 | 山东农业大学 | Constant pressure self-loopa frost heave test system |
| CN108333323A (en) * | 2017-12-07 | 2018-07-27 | 中国矿业大学 | A kind of body frost heaving rate measuring device and measurement method |
| CN109212159A (en) * | 2017-06-29 | 2019-01-15 | 中国科学院寒区旱区环境与工程研究所 | A kind of multi-parameter frozen soil on-site rapid detection device and its detection method |
| CN110031608A (en) * | 2019-04-30 | 2019-07-19 | 西南交通大学 | Ever-frozen ground frozen swell and melt settlement characteristic test apparatus and its test method |
| CN112748146A (en) * | 2020-12-24 | 2021-05-04 | 黄河勘测规划设计研究院有限公司 | Freeze-thaw cycle experimental device capable of considering stress and moisture content coupling |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2872354Y (en) * | 2005-10-19 | 2007-02-21 | 吉林省交通科学研究所 | Soil-property frost ratio determiner |
| CN201037836Y (en) * | 2007-04-28 | 2008-03-19 | 中国矿业大学 | Soil mass frost measuring instrument |
| RU2473080C1 (en) * | 2011-08-22 | 2013-01-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" (САФУ) | Device for determining deformations and frost heaving force of soil |
| KR20130072460A (en) * | 2011-12-22 | 2013-07-02 | 한국건설기술연구원 | Measuring apparatus of frost heaving pressure for earth and sand |
| CN103776984A (en) * | 2014-02-24 | 2014-05-07 | 黑龙江省水利科学研究院 | Joint test device and method for expansion and frost heaving of soil body |
| CN104297451A (en) * | 2014-10-23 | 2015-01-21 | 石家庄铁道大学 | Large-grain-size soil body frost heaving performance testing device |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| CN204925105U (en) * | 2015-08-19 | 2015-12-30 | 山东农业大学 | Soil frozen -heave factor tester |
-
2015
- 2015-08-19 CN CN201510510452.9A patent/CN105158438A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2872354Y (en) * | 2005-10-19 | 2007-02-21 | 吉林省交通科学研究所 | Soil-property frost ratio determiner |
| CN201037836Y (en) * | 2007-04-28 | 2008-03-19 | 中国矿业大学 | Soil mass frost measuring instrument |
| RU2473080C1 (en) * | 2011-08-22 | 2013-01-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" (САФУ) | Device for determining deformations and frost heaving force of soil |
| KR20130072460A (en) * | 2011-12-22 | 2013-07-02 | 한국건설기술연구원 | Measuring apparatus of frost heaving pressure for earth and sand |
| CN103776984A (en) * | 2014-02-24 | 2014-05-07 | 黑龙江省水利科学研究院 | Joint test device and method for expansion and frost heaving of soil body |
| CN104297451A (en) * | 2014-10-23 | 2015-01-21 | 石家庄铁道大学 | Large-grain-size soil body frost heaving performance testing device |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| CN204925105U (en) * | 2015-08-19 | 2015-12-30 | 山东农业大学 | Soil frozen -heave factor tester |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212159A (en) * | 2017-06-29 | 2019-01-15 | 中国科学院寒区旱区环境与工程研究所 | A kind of multi-parameter frozen soil on-site rapid detection device and its detection method |
| CN109212159B (en) * | 2017-06-29 | 2024-02-23 | 中国科学院西北生态环境资源研究院 | Multi-parameter frozen soil on-site rapid detection device and detection method thereof |
| CN107655930A (en) * | 2017-10-25 | 2018-02-02 | 安徽理工大学 | Frost heave parameter determinator under controllable temperature complicated boundary condition |
| CN108333323A (en) * | 2017-12-07 | 2018-07-27 | 中国矿业大学 | A kind of body frost heaving rate measuring device and measurement method |
| CN107907562A (en) * | 2017-12-28 | 2018-04-13 | 山东农业大学 | Constant pressure self-loopa frost heave test system |
| CN110031608A (en) * | 2019-04-30 | 2019-07-19 | 西南交通大学 | Ever-frozen ground frozen swell and melt settlement characteristic test apparatus and its test method |
| CN112748146A (en) * | 2020-12-24 | 2021-05-04 | 黄河勘测规划设计研究院有限公司 | Freeze-thaw cycle experimental device capable of considering stress and moisture content coupling |
| CN112748146B (en) * | 2020-12-24 | 2023-09-19 | 黄河勘测规划设计研究院有限公司 | Freezing and thawing cycle experimental device capable of considering stress and water content coupling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105158438A (en) | Tester for soil frost-heaving ratio | |
| CN205826656U (en) | A kind of frozen soil freeze thawing laboratory testing rig | |
| CN103743771B (en) | A kind of Frozen-thawed cycled pick-up unit being applicable to natural salt dirting soil | |
| CN104237305B (en) | A kind of rock mass testing device for measuring thermal conductivity and test system | |
| CN104267172B (en) | A kind of multifunctional all formula soil body freezing-thawing test system | |
| CN104655823B (en) | A kind of frost heaving meter | |
| CN102590468B (en) | Testing system for deep soil freezing/thawing process | |
| CN104749205A (en) | Water thermal force comprehensive testing system and method of soil body freezing process | |
| CN204154664U (en) | Soil sample freezing-thawing test device | |
| CN102109513A (en) | Physical property detection experimental device for three-dimensional (3D) generation and exploitation of natural gas hydrate | |
| CN105910941B (en) | The test method of content of unfrozen water in frozen earth based on pressure plate apparatus | |
| CN104215655B (en) | A kind of frozen soil three-dimensional heat conducting coefficient measurement device and method | |
| CN108061740A (en) | A kind of laboratory testing rig and its test method based on native water CURVE STUDY unsaturation salinity transfer rule | |
| CN203587587U (en) | Real-time online testing device of saturated rock frost heaving force | |
| CN106353359A (en) | Device for testing thermophysical parameters of soil mass sample | |
| CN204925105U (en) | Soil frozen -heave factor tester | |
| KR20190021888A (en) | Loading device of freeze testing apparatus for ground | |
| CN202673266U (en) | Experimental device for simulation of microwave heating of oil shale in real stratum situation | |
| Salas-García et al. | A low-cost automated test column to estimate soil hydraulic characteristics in unsaturated porous media | |
| CN115236115A (en) | Testing device and method for simulating slope erosion in freeze-thaw cycle | |
| CN204536237U (en) | A kind of Freezing Soils hydro-thermal power comprehensive test system | |
| CN110849930B (en) | Experimental device for measuring interaction between frozen soil and buried pipeline and preparation method | |
| CN204374020U (en) | A kind of object imbibition volatilization pick-up unit | |
| CN206096001U (en) | Simulating measurement setup | |
| CN205898553U (en) | Use concrete temperature stress testing machine system that gos into formula environmental laboratory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |
|
| RJ01 | Rejection of invention patent application after publication |