CN106124553A - A kind of Multifunction frost heave test instrument - Google Patents
A kind of Multifunction frost heave test instrument Download PDFInfo
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- CN106124553A CN106124553A CN201610537859.5A CN201610537859A CN106124553A CN 106124553 A CN106124553 A CN 106124553A CN 201610537859 A CN201610537859 A CN 201610537859A CN 106124553 A CN106124553 A CN 106124553A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses the test device of the frost-heave force of a kind of rock-soil material, free frozen-heave factor and constant voltage frozen-heave factor, it is characterised in that: it is made up of steel reaction frame, refrigerant agent container (comprising refrigerant agent inlet and outlet), rotating disk, screw thread, constant voltage bar, load sensor, double-deck adiabatic lateral spacing ring, limited block, steel plate (carrying fluted), refrigerant agent, magnetic displacement meter.Refrigerant agent carries out Unidirectional Freezing by steel plate groove to sample, and magnetic displacement meter is used for measuring the frozen-heave factor of sample, and load sensor is used for measuring the frost-heave force of sample.It is an advantage of the current invention that accurate to measure frozen-heave factor and the frost-heave force of rock-soil material, diverse in function, simple and practical, reliable results.
Description
Technical field
Present invention is mainly used for the free frozen-heave factor of Frozen Rock and Soil material, perseverance are measured in the Unidirectional Freezing test of rock-soil material
Pressure frozen-heave factor and frost-heave force, be a kind of novel measurement apparatus, multiple functional, simple to operate.
Background technology
In engineering with artificial freezing method work progress, frost heave can cause fracture of freezing pipe, and meanwhile, the frost heave of ground can jeopardize attached
Nearly pipeline and the safety of building, so frost heave test index is the important indicator of frozen soil performance, be important in frozen soil experiment
Pilot project, important evidence when being engineering design.Frost-heaving deformation is become ice mutually by soil water, volumetric expansion is formed, and water
Freezing to comprise two parts, one is that the original position of soil water is freezed, and two is that the migration water freezing to cause freezes.Affect body frost heaving because of
Have a lot, but be summed up the granularmetric composition nothing more than soil, mineral composition, soil water divide, density, temperature, load and
Salinity.According to national standard " Standard for test methods of earthworks " (GB/T50123-1999), the maximum frost heaving amount of sample is former with sample
The long frozen-heave factor that ratio is sample.Frost-heave force refers to that frozen-heave factor is to freeze the soil body to restraining structure when zero after frost heave occurs
The maximum pressure applied.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of instrument novel, easy to measure Frozen Rock and Soil material
Frost-heave force, constant voltage frozen-heave factor and free frozen-heave factor.
For achieving the above object, the present invention can take technical scheme as follows: a kind of Multifunction frost heave experiment instrument, by steel
Reaction frame, refrigerant agent container (including refrigerant agent inlet and outlet), steel plate, rotating disk, screw thread, constant voltage bar, load sensor,
Limited block, magnetic displacement meter, double-deck adiabatic lateral spacing ring etc. are constituted.Described steel reaction frame is fixed on base, and sheet-steel cover is at coolant
On agent container, there is the circular groove of an a diameter of 4D (D is soil sample diameter) at its center, in groove, have a small-sized round platform (straight
Footpath is D), round platform is placed sample, it is therefore an objective to prevent condensed water from assembling, freeze experimentation and result are produced impact, meanwhile,
Limit the position of sample so that it is placed in the middle.Refrigerant agent import is in refrigerant agent container lower end, and refrigerant agent outlet is on the upper side at refrigerant agent container
End, and refrigerant agent outlet bottom maintains an equal level top in steel plate groove, it is therefore an objective to ensure to carry out sample is Unidirectional Freezing.Cold
Mediator container belongs to heat-insulation system, therefore its material should be insulation material, because sample to be freezed and pressure-bearing by groove, and institute
Tentatively to draft material as steel plate.Refrigerant agent container welds with steel reaction frame.Low-temperature receiver senses from outside refrigeration system, loading
Device is used for measuring frost-heave force.The mensuration of constant voltage frozen-heave factor only need to utilize constant voltage pole pair sample on the basis of without pressure frozen-heave factor experiment
Applying certain load, other experimental techniques are the most identical with the determination step without pressure frozen-heave factor.Double-deck adiabatic lateral spacing ring interior
Ring is the lateral frost heave in order to limit sample, the non-conductor material of the heat such as double-deck lateral spacing ring central filler Cotton Gossypii, to ensure examination
The Unidirectional Freezing of sample.Refrigerant agent container needs to take certain Insulation to keep stablizing of solidification point.
The basic theories principle of the present invention: according to national standard " Standard for test methods of earthworks " (GB/T50123-1999),
The maximum frost heaving amount of sample and the frozen-heave factor that ratio is sample of the former length of sample.Computing formula is as follows:
In formula: η is frozen-heave factor, %；Δ h is maximum frost heaving amount, mm；HfFor the depth of freezing, do not include frost heaving amount, mm.In test
Thermostatic process soil body deflection under load action is subtracted for sample elemental height.
Patent of the present invention have the beneficial effect that operational approach is simple, outcome measurement is the most reliable.Can measure and freeze
The frost-heave force of rock-soil material, free frozen-heave factor and constant voltage frozen-heave factor.
Accompanying drawing explanation
Fig. 1 is the frost-heave force determination experiment main TV structure schematic diagram of the present invention, and Fig. 2 is the frost-heave force determination experiment of the present invention
Plan structure schematic diagram.
Fig. 3 is the free frozen-heave factor determination experiment main TV structure schematic diagram of the present invention, and Fig. 4 is the free frozen-heave factor of the present invention
Determination experiment plan structure schematic diagram.
Fig. 5 is the constant voltage frozen-heave factor determination experiment main TV structure schematic diagram of the present invention, and Fig. 6 is the constant voltage frozen-heave factor of the present invention
Determination experiment plan structure schematic diagram.
In figure: 1 steel reaction frame；2 refrigerant agent container outlets；3 rotating disks；4 screw threads；5 load sensors；6 samples；7 pairs
The adiabatic lateral spacing steel loop of layer；8 limited blocks；9 steel plates；10 refrigerant agent vessel inlet；11 refrigerant agents；12 magnetic displacement meters；13 constant voltage bars；
14 refrigerant agent containers.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail:
The present invention is mainly by steel reaction frame, refrigerant agent container, steel plate, rotating disk, screw thread, constant voltage bar, limited block, loading
Sensor, magnetic displacement meter combine, and are injected the refrigerant agent of assigned temperature in refrigerant agent container by external refrigeration system,
The temperature in groove is measured, double-deck adiabatic side on housing sleeve on the round platform in groove after it reaches to formulate temperature with thermometer
The rock-soil material sample of limit ring, places cushion block, installs magnetic displacement meter, after frost heave is stable, can read frost heaving amount, thus ask
Come from by frozen-heave factor.The mensuration of constant voltage frozen-heave factor, only need to install constant voltage by the basis of being shown in free frozen-heave factor determinator
Bar, can draw constant voltage frozen-heave factor.When measuring frost-heave force, unload magnetic displacement meter, steel reaction frame is pressed figure installed load and passes
Sensor, rotates rotating disk and applies pressure, and when sample recovers elemental height, the pressure that load sensor records is frost-heave force.
It is embodied as step as follows:
(1) steel bracket made in advance is fixed on base, injects appointment temperature from refrigerant agent vessel inlet wherein
The refrigerant agent of degree.
(2) sample is fabricated to standard cylindrical sample.
(3) measure temperature in groove with thermometer, after it reaches to specify solidification point, soil sample is put into setting of fixing
In Bei, i.e. in steel loop, and it is placed on together on the round platform in groove.
(4) on sample, place cushion block, magnetic displacement meter, zeroing are installed, after treating that displacement meter registration is stably, record displacement
Meter reading, is frost heaving amount, thus calculates free frozen-heave factor.
(5) remove magnetic displacement meter, rotating disk, screw thread, load sensor and limited block are installed, rotate driven by rotary disc spiral shell
Stricture of vagina screw thread applies pressure by load sensor and limited block to sample, and when it recovers elemental height, load sensor records
Pressure be frost-heave force.
(6) when surveying constant voltage frozen-heave factor, front 3 steps are identical, simply install constant voltage bar when step (4), until experiment is complete
Portion terminates to unload load.Other steps are identical, therefore repeat no more.
The height of vernier caliper measurement sample applied by sample before installing, again measure it highly after experiment terminates, twice
Difference in height is frost heaving amount, thus also can obtain frozen-heave factor.This step is simply for checking experiment result.
Above section is described and describes the ultimate principle of the present invention, principal character, novelty and advantage.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited by above-mentioned enforcement example, described in above-mentioned enforcement example and description simply
The principle of the present invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these
Changes and improvements both fall within scope of the claimed invention.Claimed scope by appending claims and
Its equivalent defines.
Claims (12)
1. a Multifunction frost heave test instrument, it is characterised in that: (comprised refrigerant agent import by steel bracket, refrigerant agent container
And outlet), rotating disk, screw thread, load sensor, constant voltage bar, double-deck adiabatic lateral spacing ring, limited block, steel plate (carrying fluted),
Refrigerant agent, magnetic displacement meter are constituted.Refrigerant agent carries out Unidirectional Freezing by steel plate groove to sample, and magnetic displacement meter is used for measuring
The frozen-heave factor of sample, load sensor is used for measuring the frost-heave force of sample.
2. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described steel bracket is arranged on base
On, undertake end reaction.
3. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: the steel plate on described refrigerant agent container
Carry fluted.
4. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: in described groove, there is a circle center
Shape cushion cap, plays the position-limiting action on sample and prevents condensed water from experimentation and result are produced impact.
5. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described refrigerant agent outlet tip with hold
Platform top flushes, and bottom flushes with groove top, it is ensured that refrigerant agent is full of refrigerant agent container.
6. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described steel loop is for limiting sample
Lateral frost heave, it is ensured that the unidirectional frost heave of sample.
7. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described load sensor is used for measuring
Frost-heave force.
8. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described rotating disk and screw thread are to examination
Sample applies pressure, forces frost heave sample to recover elemental height.
9. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described refrigerant agent container outlet bottom
Support flat with groove-bottom, it is ensured that sample Unidirectional Freezing.
10. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described limited block is used for limiting examination
Position between sample and load sensor.
11. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described constant voltage bar is by friction
Damping to provide constant pressure to sample.
12. Multifunction frost heave test instrument as claimed in claim 1, it is characterised in that: described double-deck adiabatic lateral spacing ring pair
Sample provides lateral limitation, and ensures thermal insulation, Unidirectional Freezing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537859.5A CN106124553B (en) | 2016-07-08 | 2016-07-08 | A kind of novel and multifunctional frost heave test instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537859.5A CN106124553B (en) | 2016-07-08 | 2016-07-08 | A kind of novel and multifunctional frost heave test instrument |
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| CN106124553A true CN106124553A (en) | 2016-11-16 |
| CN106124553B CN106124553B (en) | 2018-10-19 |
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| CN201610537859.5A Active CN106124553B (en) | 2016-07-08 | 2016-07-08 | A kind of novel and multifunctional frost heave test instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645261A (en) * | 2017-03-17 | 2017-05-10 | 安徽理工大学 | Large-sized multifunctional artificial freezing platform |
| CN108225651A (en) * | 2018-01-09 | 2018-06-29 | 石家庄铁道大学 | A kind of permafrost region tapered pile tangent coordinate system distribution tests Experimental Method in Laboratory and its experimental rig used |
| CN113720668A (en) * | 2021-09-22 | 2021-11-30 | 安徽理工大学 | Device for manufacturing frozen soil dynamic fracture toughness sample |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202057647U (en) * | 2010-12-31 | 2011-11-30 | 任怀国 | Frost heave factor tester for soil property |
| 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 |
| KR101285773B1 (en) * | 2010-11-29 | 2013-07-18 | 주식회사 케이엠티엘 | Measuring system of frost heaving distress on asphalt concrete pavement and construction method of pavement using the same |
| CN203287337U (en) * | 2013-06-04 | 2013-11-13 | 中国科学院寒区旱区环境与工程研究所 | Soil body freezing-thawing process visualized testing device |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| CN104749209A (en) * | 2015-03-25 | 2015-07-01 | 西北农林科技大学 | Vacuum inner-container type unidirectional freezing test device for closed system |
-
2016
- 2016-07-08 CN CN201610537859.5A patent/CN106124553B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101285773B1 (en) * | 2010-11-29 | 2013-07-18 | 주식회사 케이엠티엘 | Measuring system of frost heaving distress on asphalt concrete pavement and construction method of pavement using the same |
| CN202057647U (en) * | 2010-12-31 | 2011-11-30 | 任怀国 | Frost heave factor tester for soil property |
| 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 |
| CN203287337U (en) * | 2013-06-04 | 2013-11-13 | 中国科学院寒区旱区环境与工程研究所 | Soil body freezing-thawing process visualized testing device |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| CN104749209A (en) * | 2015-03-25 | 2015-07-01 | 西北农林科技大学 | Vacuum inner-container type unidirectional freezing test device for closed system |
Non-Patent Citations (4)
| Title |
|---|
| AKE HERMANSSON: "Laboratory and field testing on rate of frost heave versus heat extraction", 《COLD REGIONS SCIENCE AND TECHNOLOGY》 * |
| NORIKAZU MATSUOKA ET AL.: "Differential frost heave and sorted patterned ground: field measurements and a laboratory experiment", 《GEOMORPHOLOGY》 * |
| 张世银等: "多功能冻土冻胀试验机的研制与应用", 《工程与试验》 * |
| 邢爽等: "季节性冻土的冻胀试验***及应用", 《东北电力大学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645261A (en) * | 2017-03-17 | 2017-05-10 | 安徽理工大学 | Large-sized multifunctional artificial freezing platform |
| CN108225651A (en) * | 2018-01-09 | 2018-06-29 | 石家庄铁道大学 | A kind of permafrost region tapered pile tangent coordinate system distribution tests Experimental Method in Laboratory and its experimental rig used |
| CN113720668A (en) * | 2021-09-22 | 2021-11-30 | 安徽理工大学 | Device for manufacturing frozen soil dynamic fracture toughness sample |
| CN113720668B (en) * | 2021-09-22 | 2024-02-13 | 安徽理工大学 | Device for manufacturing frozen soil dynamic fracture toughness sample |
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| Publication number | Publication date |
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| CN106124553B (en) | 2018-10-19 |
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