CN206339506U - A kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation - Google Patents
A kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation Download PDFInfo
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- CN206339506U CN206339506U CN201621451072.9U CN201621451072U CN206339506U CN 206339506 U CN206339506 U CN 206339506U CN 201621451072 U CN201621451072 U CN 201621451072U CN 206339506 U CN206339506 U CN 206339506U
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- earth pillar
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- heaving deformation
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Abstract
The utility model discloses a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation, including the lucite mould for containing one-dimensional cylindrical earth pillar, the circulator of earth pillar frost heave is made by refrigeration, the test device of frost-heaving deformation is carried out in process of frost heave to earth pillar, monitoring device of the soil sample internal temperature along earth pillar height change is monitored in process of refrigerastion in real time, simulated groundwater carries out the water replanishing device and drainage arrangement of moisturizing to earth pillar inside from the bottom to top, the test device of earth pillar pore water pressure is tested in process of frost heave, one-dimensional earth pillar is cylindric soil sample, the mould for containing earth pillar is the double-deck lucite of the cylindrical transparent laid vertically, water replanishing device is connected and data collecting system by filling pipe with one-dimensional cylindric earth pillar bottom.The utility model is simple in construction, reasonable in design and practical easy to operate, good practical effect, the frost-heaving deformation process of the soil body can be simulated indoors, and can carry out Validity Test to inside soil body temperature, pore water pressure, vertical frost heaving amount, vertical cubic deformation and frost-heave force during frost-heaving deformation.
Description
Technical field
The utility model is specifically related to a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation, belongs to earthwork test Instrument
Technical field.
Background technology
Extensively, wherein ever-frozen ground accounts for the 22.3% of area, high mountain permafrost to China's frozen soil area distributions
Area the first in the world, and frost zone distribution is more extensive.In recent years, with cold regions engineering, (work is built in permafrost region or seasonal frost region
Journey, including road, oil-gas pipeline etc.) a large amount of constructions, frost heave turns into be faced most in China's cold regions engineering process of construction
Main engineering project disaster.When Land petroleum pipeline is after the complicated geology location such as above-mentioned permafrost region, because the high temperature of its conveying is high
Force feed gas easily make along frozen soil occur frost heave and thaw collapse disaster, cold area's buried pipeline easily occurs " dew pipe " phenomenon, produced when serious
Raw bending deformation；During cold area's standard highway approach permafrost region, the change of environment temperature easily makes road occur inhomogeneous deformation and road
Base longitudinal crack, frozen swell and melt settlement and frost boiling phenomenon.The Disease Characters of above-mentioned cold regions engineering are different, but disease is the reason for form
It is attributed to the change of soil temperature along (1) cold regions engineering, migration and freezing and expansion and (3) soil body of (2) inside soil body moisture
Frost-heaving deformation.The soil body is during frost-heaving deformation, and its internal temperature changes with the change of environment temperature, and water freezing is swollen in soil
Swollen, volume increase, therefore, temperature change causes water content in the soil body, pore water pressure etc. to change, and causes the hole of the soil body
The change of the major parameters such as gap rate, Penetration Signature and water-Wen-power coupled characteristic；Temperature change easily makes inside soil body produce temperature
Gradient, and native reclaimed water is migrated because of thermograde, part water is because of thermograde freezing and expansion in soil, so as to cause body frost heaving
Deformation.
At present, in the research and prospecting practice of frozen soil, China mainly uses《Soil test standard》With《Frozen soil engineering
Matter exploration standards》, which specify several main experimentals of research frozen soil performance, including in-situ test and laboratory test, wherein, it is several
Plant laboratory test to be completed by different instruments respectively, not only complex operation, and it is limited to test the test data of acquisition every time.Freeze
It is a kind of frozen soil performance testing equipment being applied in recent years, Chinese utility model patent application number to tie instrument：
201510313671, disclose a kind of continuous temperature-change type multistage gradient and freeze instrument, its instrument can only study the freezing process of frozen soil
Performance, it is impossible to while obtaining more test datas.In order to study frost-heaving deformation of the soil body under different temperatures gradient effect
Rule, it is convenient under the conditions of identical temperature change, while observing temperature field, displacement field, water caused by inside soil body thermograde
Divide and pore pressure.Therefore a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation is needed, by the surrounding of cylindrical soil sample and bottom
Portion is lined with the good transparent heat-insulation film of heat-proof quality, is placed in Double-layered transparent lucite, so as to ensure only at the top of soil sample
Carry out a kind of test device of test soil sample frost-heaving deformation of heat exchange.
Utility model content
Therefore, for the above-mentioned deficiency of prior art, the utility model purpose aims to provide a kind of one-dimensional earth pillar of test and frozen
The experimental rig of bulging deformation.To reach under different temperatures change condition, temperature field during soil sample frost-heaving deformation, position are realized
Monitored while moving field, moisture and pore pressure.The device be the cylindrical soil sample for being enclosed with transparent heat-insulation film is placed in it is heat-insulated
In earth pillar mould of good performance, its surrounding is not carried out heat exchange with external environment with bottom, by kind of refrigeration cycle device, only exist
The soil sample frost-heaving deformation under heat exchange, test different in moisture, temperature field action is carried out at the top of sample.
Specifically, a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation, including holder device, die device, detection
Device, data acquisition device, water replanishing device, refrigerating plant, the die device are arranged on holder device, and die device includes
Base, fix bar, flange, earth pillar mould, floor installation is on holder device, and flange passes through fix bar connect base, earth pillar mould
Tool is placed on base, and the detection means includes temperature sensor, sensor for pore water pressure, strain gauge, strain transducer, position
Displacement sensor, temperature sensor, sensor for pore water pressure are installed on earth pillar mould side wall and are deep into inside earth pillar sample, stress
Sensor, strain transducer, displacement transducer be arranged at the top of earth pillar sample and with earth pillar sample top contact, the data
Harvester includes data collecting instrument, data acquisition line, computer, and data acquisition line connection all sensors simultaneously pass through data acquisition
Instrument connects computer, and the water replanishing device includes water supply tank, moisturizing drainpipe, discharge casing, and moisturizing drainpipe two ends are respectively communicated with benefit
Water tank and earth pillar mold bottom, water supply tank are set higher than earth pillar mould, and discharge casing connects moisturizing drainpipe and less than earth pillar mould
Set, the refrigerating plant includes kind of refrigeration cycle device, refrigerating fluid runner pipe, refrigeration coil, refrigeration coil is arranged on earth pillar sample
Top.
Further, the holder device includes pedestal, leg, column, crossbeam sensor base, and base is pacified by leg
On pedestal, crossbeam is provided with sensor base by column stop nut connecting cross beam, crossbeam connection pedestal, crossbeam.
Further, the earth pillar mould is made up of Double-layered transparent lucite.
Further, earth pillar sample bottom and insulation film is formed around in the earth pillar mould, earth pillar is tried in earth pillar mould
Filter paper is provided with the top of sample, earth pillar sample bottom is provided with permeable stone, moisturizing drainpipe contact permeable stone.
Further, the flange connects gag lever post by fix bar stop nut.
Further, it is located on the moisturizing drainpipe below water supply tank and is additionally provided with water supply valve and hydraulic pressure dial plate.
Further, water discharging valve, discharge casing bottom are additionally provided with the branch road that discharge casing is connected on the moisturizing drainpipe
Provided with electronic scale.
Further, the temperature sensor is along earth pillar specimen height direction spaced set.
Further, the sensor for pore water pressure is correspondingly arranged with temperature sensor interval.
Further, the refrigeration coil is made of brass coil pipe.
The beneficial effects of the utility model are：
1st, the utility model uses kind of refrigeration cycle device to carry out cooling for soil sample in double-deck lucite mould and freezed, and realizes soil
Sample frost-heaving deformation, it is possible to while monitoring temperature field, displacement field and pore pressure of the soil sample under different temperatures gradient.
2nd, the utility model carries moisturizing, drainage arrangement, can reach the purpose of moisturizing during soil sample frost-heaving deformation, supervises
The pore water pressure and volume frost-heaving deformation surveyed in soil sample process of frost heave, can more preferable simulation undisturbed soil soil sample.
3rd, the utility model carries device for detecting temperature, monitors the temperature inside soil sample in real time using data collecting instrument and computer
Field change is spent, the relation between pore pressure, displacement field and temperature field during soil sample frost-heaving deformation can be preferably monitored.
4th, the utility model with monitoring soil sample frost-heaving deformation during displacement field and temperature field real time monitoring apparatus,
The thermograde inside soil sample is monitored in real time using data collecting instrument and computer, can preferably monitor soil sample in frost-heaving deformation process
Relation between middle displacement field, volume frost-heaving deformation and temperature field.
In summary, the utility model is simple in construction, reasonable in design and easy to operate, good practical effect, can mould indoors
Quasicylinder shape soil sample frost-heaving deformation process, and can be to temperature field of the soil sample during frost-heaving deformation, displacement field, pore pressure and body
Product frost-heaving deformation carries out Validity Test.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model experimental rig.
Fig. 2 is lucite mold feet and the schematic diagram of A-A sections in base connection portion Fig. 1.
Fig. 3 is the schematic diagram of B-B sections in refrigeration coil arranging section Fig. 1 at the top of soil sample.
Fig. 4 is the schematic diagram of C-C sections in temperature, sensor for pore water pressure arranging section Fig. 1.
Fig. 5 is the schematic diagram of D-D sections in connection cross sectional portion Fig. 1 at the top of pedestal.
Reference is as follows：
1- pedestals；2- legs；3- columns；
4- bases；5- moisturizing drainpipes；6- permeable stones；
7- fix bars；8- earth pillar moulds；9- insulation films；
10- cylinder earth pillars；11- temperature sensors；12- sensor for pore water pressure；
13- data acquisition lines；14- filter paper；15- refrigeration coils；
16- fix bar stop nuts；17- flanges；18- refrigerating fluid runner pipes；
19- strain gauges；20- strain transducers；21- displacement transducers；
22- sensor bases；23- crossbeams；24- column stop nuts；
25- data collecting instruments；26- computers；27- kind of refrigeration cycle devices；
28- water supply tanks；29- water supply valves；30- hydraulic pressure dial plates；
31- water discharging valves；32- discharge casings；33- electronic scales；
Embodiment
Embodiment of the present utility model is illustrated below in conjunction with the accompanying drawings：
As shown in figure 1, the utility model includes the earth pillar that the Double-layered transparent lucite equipped with cylindrical soil sample 10 is made
Mould 8, make by refrigeration to monitor cylindrical soil sample 10 during the kind of refrigeration cycle device device of cylindrical soil sample 10, frost-heaving deformation and freeze
The supervising device of bulging deformation, the moisturizing drainage arrangement for ensureing the cylindrical saturation of soil sample 10, the cylindrical temperature field of soil sample 10 of test, hole
Have a meeting, an audience, etc. well under one's control, the real-time monitoring device of deformation field.The bottom of cylindrical soil sample 10 is provided with permeable stone 6, and water replanishing device passes through filling pipe 5
Moisturizing is carried out to measured circle cylindrical soil sample 10, and draining, drainage collection to discharge casing 31 are carried out by moisturizing drainpipe 5.
The kind of refrigeration cycle device 27 (JULABO) that the utility model is used can be from main regulation temperature value, good constant-temperature effect, behaviour
Make simple and convenient.Kind of refrigeration cycle device 27 collectively constitutes cooling cycle system with refrigerating fluid runner pipe 18, refrigeration coil 15, gives simultaneously
Cylindrical soil sample 10 inside Double-layered transparent lucite carries out cooling refrigeration, realizes the frost-heaving deformation process of soil sample, cylinder
The surrounding of soil sample 10 is enclosed with transparent heat-insulation film 9 with bottom, and the insulation film 9 of bottom need to set permeable hole permeable, it is ensured that soil sample frost heave
Deformation is from top to bottom；Water supply tank 28 connects filling pipe 5 and carries out moisturizing, moisturizing drainpipe 5 to cylindrical soil sample 10 by permeable stone 6
It is upper that hydraulic pressure dial plate 30 and water supply valve 29 are housed, setting hydraulic pressure can be required according to sample preparation, so as to be reached for cylindrical soil sample 10
The purpose of moisturizing；Superfluous water is discharged to discharge casing 32 by drainpipe 5 in cylindrical soil sample 10；Strain gauge 19, displacement are passed
Sensor 21, strain transducer 20 are respectively placed in the cylindrical top of soil sample 10, and sensor probe is contacted with the cylindrical top surface of soil sample 10,
Vertical frost heaving amount during monitoring soil sample frost-heaving deformation and cubic deformation in real time；Temperature sensor 11, which is arranged in Double-layered transparent, to be had
The side of machine glass earth pillar mould 8, is equally spaced along soil sample short transverse, and soil sample sidewall contact, between the grade of sensor for pore water pressure 12
Away from the another side of Double-layered transparent lucite 13 is arranged in, it is spaced corresponding, i.e., is passed at interval of 1 temperature with temperature sensor 11
Sensor 11, sets 1 sensor for pore water pressure 12, in real time the temperature field during monitoring soil sample frost-heaving deformation and pore pressure change；Pass
Sensor is connected by data acquisition line 13 with data collecting instrument 25, and data collecting instrument 25 is connected with computer 26 again, to what is collected
Data carry out finishing analysis.The cylindrical soil sample 10 for being enclosed with transparent heat-insulation film 9 is placed in Double-layered transparent lucite 18, so that
Block the heat exchange of soil sample and external environment, it is ensured that frost-heaving deformation only occurs from the cylindrical top of soil sample 10.
Refrigerating plant includes kind of refrigeration cycle device 27, refrigerating fluid runner pipe 18 and by supplying what refrigerating fluid runner pipe 18 was coiled to form
Refrigeration coil 15, the cylindrical top of earth pillar 10 is arranged on by refrigeration coil.
Cylindrical earth pillar frost-heaving deformation test device includes strain gauge 19, the strain biography tested in earth pillar process of frost heave
Sensor 20, tests the displacement transducer 21 of the vertical frost heaving amount of earth pillar, and sensor passes through data acquisition line 13 and data collecting instrument 25
It is connected, and is connected with computer 26, carries out data preparation analysis.
Cylindrical earth pillar device for detecting temperature includes the temperature sensor 11 in test earth pillar process of frost heave, by it along earth pillar
Short transverse is evenly arranged on the outside of the die trial of Double-layered transparent lucite 8, and sensor probe is in contact with earth pillar side, sensor
It is connected by data acquisition line 13 with data collecting instrument 25, and is connected with computer 26, carries out data preparation analysis.
Cylindrical earth pillar pore pressure monitoring device includes the sensor for pore water pressure 11 in test earth pillar process of frost heave, by it along earth pillar
Short transverse is evenly arranged on the outside of the mould of Double-layered transparent lucite 8, and sensor probe is in contact with earth pillar side, sensor
It is connected by data acquisition line 13 with data collecting instrument 25, and is connected with computer 26, carries out data preparation analysis.
Moisturizing, drainage arrangement include the connection filling pipe 5 of water supply tank 28 and pass through earth pillar bottom permeable stone 6 and cylindrical earth pillar 10
It is connected and carry out moisturizing to earth pillar, rate of water make-up, moisturizing is controlled by the water supply valve 29 on moisturizing drainpipe 5 and hydraulic pressure dial plate 30
Water discharging valve 31 is closed in journey；Water unnecessary in earth pillar process of frost heave is passed through into electronic scale through the draining of drainpipe 5 to discharge casing 32
33 weighing discharge casings are mended in the difference before and after draining to calculate to close in the hole water content in earth pillar process of frost heave, drainage procedure
Penstock 29.
Fig. 2 is that the leg 2 of lucite earth pillar mould 8 is connected cross section A-A structural representation with pedestal 1 in the present embodiment.
As shown in Fig. 2 it is 90 ° that 4 lower disposed of lucite base 4, which waits angle between height leg 2, leg, it is ensured that lucite
The perpendicularity of die trial.
Fig. 3 is the cylindrical top refrigeration coil 15 of earth pillar 10 arrangement section B-B structural representation in the present embodiment.Such as Fig. 3
Shown, refrigeration coil 15 is coiled to form using brass tube, and it is connected between kind of refrigeration cycle device 27 by refrigerating fluid runner pipe 18,
The a diameter of 10mm of brass tube.
Fig. 4 is that temperature sensor 11, sensor for pore water pressure 12 show along the height placement section C-C structure of earth pillar 10 in the present embodiment
It is intended to.As shown in figure 4, being circumferentially evenly arranged 4 lucite fix bars 7 on base 4, fix bar 7 is conllinear with leg 2, temperature
Sensor 11 is spent conllinear with sensor for pore water pressure 12, in 45 ° of angles between fix bar 7 and temperature sensor 11.
Fig. 5 is the top of pedestal 1 connection section D-D structural representation in the present embodiment.As shown in figure 5, the rectangularity of pedestal 1
The steel plate of shape, arranges 2 root posts 3, it is ensured that the stability of lucite mould, pedestal 1 and leg along the length direction of pedestal 1 thereon
In 45 ° of angles between 2.
In the present embodiment, need to be provided for data acquisition line 13 on flange 17, refrigerating fluid runner pipe 18 is passed through opens
Need to be provided for mounting temperature sensor 11, the mounting hole of hydraulic pressure sensor 12, these perforates and peace on hole, earth pillar mould 8
Dress hole can be set according to actual needs, and position of opening should carry out heat-insulated processing.
The utility model realizes the frost-heaving deformation of soil sample, the operation letter of kind of refrigeration cycle device using kind of refrigeration cycle device refrigeration soil sample
It is single, easy temperature control；With moisturizing, drainage arrangement, the moisturizing and draining in the saturation degree and frost-heaving deformation of test requirements document are met；
Temperature field, displacement field, moisture and the pore pressure of soil sample can be monitored in real time.
In the present embodiment, specific device model：Kind of refrigeration cycle device：JULABO F25-ED；Data collecting instrument：
Datetaker DT80；Temperature sensor：Geo-expert Thermo PT100；Sensor for pore water pressure：Geo-expert
PWP1000；Displacement transducer：Geo-expert LVDT100；Strain gauge：Geo-expert LC10；Strain transducer：
Microstrain M-DVRT.The device of other models can also be selected according to physical condition.
The above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
Protection domain of the present utility model is also should be regarded as with retouching.
Claims (10)
1. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation, including holder device, die device, detection means, data
Harvester, water replanishing device, refrigerating plant, it is characterised in that the die device is arranged on holder device, die device bag
Base, fix bar, flange, earth pillar mould are included, floor installation is on holder device, and flange passes through fix bar connect base, earth pillar
Mould is placed on base, the detection means include temperature sensor, sensor for pore water pressure, strain gauge, strain transducer,
Displacement transducer, temperature sensor, sensor for pore water pressure are installed on earth pillar mould side wall and are deep into inside earth pillar sample, should
Force snesor, strain transducer, displacement transducer be arranged at the top of earth pillar sample and with earth pillar sample top contact, the number
Include data collecting instrument, data acquisition line, computer according to harvester, data acquisition line connection all sensors are simultaneously adopted by data
Collect instrument connection computer, the water replanishing device includes water supply tank, moisturizing drainpipe, discharge casing, and moisturizing drainpipe two ends are respectively communicated with
Water supply tank and earth pillar mold bottom, water supply tank are set higher than earth pillar mould, and discharge casing connects moisturizing drainpipe and less than earth pillar mould
Tool is set, and the refrigerating plant includes kind of refrigeration cycle device, refrigerating fluid runner pipe, refrigeration coil, and refrigeration coil is arranged on earth pillar examination
At the top of sample.
2. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the support
Device includes pedestal, leg, column, crossbeam sensor base, and base is arranged on pedestal by leg, and crossbeam is limited by column
Position nut connecting cross beam, crossbeam connection pedestal, crossbeam is provided with sensor base.
3. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the earth pillar
Mould is made up of Double-layered transparent lucite.
4. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the earth pillar
Earth pillar sample bottom and insulation film is formed around in mould, is provided with filter paper, earth pillar examination in lucite mould at the top of earth pillar sample
Sample bottom is provided with permeable stone, moisturizing drainpipe contact permeable stone.
5. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the flange
Gag lever post is connected by fix bar stop nut.
6. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the moisturizing
It is located on drainpipe below water supply tank and is additionally provided with water supply valve and hydraulic pressure dial plate.
7. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the moisturizing
Water discharging valve is additionally provided with the branch road that discharge casing is connected on drainpipe, discharge casing bottom is provided with electronic scale.
8. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the temperature
Sensor is along earth pillar specimen height direction spaced set.
9. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 8, it is characterised in that the pore pressure
Sensor is correspondingly arranged with temperature sensor interval.
10. a kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation as claimed in claim 1, it is characterised in that the system
Cooling coil is made of brass coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621451072.9U CN206339506U (en) | 2016-12-28 | 2016-12-28 | A kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621451072.9U CN206339506U (en) | 2016-12-28 | 2016-12-28 | A kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation |
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| CN206339506U true CN206339506U (en) | 2017-07-18 |
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ID=59302892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621451072.9U Expired - Fee Related CN206339506U (en) | 2016-12-28 | 2016-12-28 | A kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation |
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| CN107024499A (en) * | 2016-12-28 | 2017-08-08 | 塔里木大学 | One-dimensional earth pillar frost-heaving deformation analyzer |
| CN107941574A (en) * | 2017-10-17 | 2018-04-20 | 北京交通大学 | A kind of soil level frost heave visual test device |
| CN107991339A (en) * | 2018-01-25 | 2018-05-04 | 沈阳建筑大学 | A kind of body frost heaving force measuring device and measuring method |
| CN108152473A (en) * | 2017-12-10 | 2018-06-12 | 北京工业大学 | A kind of rock fracture pilot system of water-ice-rock coupling mechanism |
| CN108225612A (en) * | 2018-04-10 | 2018-06-29 | 吉林大学 | Ice sheet hot melt drilling surrounding ice sheet and melt water thermo parameters method detection device and method |
| 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 |
| CN108519405A (en) * | 2018-05-02 | 2018-09-11 | 中国科学院寒区旱区环境与工程研究所 | A set of testing equipment for studying power and deformation relationship during body frost heaving |
| CN108614095A (en) * | 2018-05-15 | 2018-10-02 | 河海大学 | A kind of test device of test method and the frost heave strain of unsaturation porous asphalt mixture freezing and thawing performance |
| CN109270250A (en) * | 2018-10-26 | 2019-01-25 | 中国矿业大学 | A kind of pilot system and test method of superelevation frost heave pore water pressure |
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| CN111189992A (en) * | 2018-11-14 | 2020-05-22 | 新疆水利水电科学研究院 | Engineering soil body frost heaving force testing device |
| CN112858631A (en) * | 2021-01-11 | 2021-05-28 | 中国矿业大学 | Comprehensive frost heaving test device and method for dynamic water replenishing in layered mode in whole process |
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| CN107024499A (en) * | 2016-12-28 | 2017-08-08 | 塔里木大学 | One-dimensional earth pillar frost-heaving deformation analyzer |
| CN107941574A (en) * | 2017-10-17 | 2018-04-20 | 北京交通大学 | A kind of soil level frost heave visual test device |
| CN109781957A (en) * | 2017-11-12 | 2019-05-21 | 兰州城市学院 | A kind of soil function test barrel |
| CN109781774A (en) * | 2017-11-12 | 2019-05-21 | 兰州城市学院 | A kind of soil function measuring device |
| 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 |
| CN108152473A (en) * | 2017-12-10 | 2018-06-12 | 北京工业大学 | A kind of rock fracture pilot system of water-ice-rock coupling mechanism |
| CN107991339A (en) * | 2018-01-25 | 2018-05-04 | 沈阳建筑大学 | A kind of body frost heaving force measuring device and measuring method |
| CN108225612B (en) * | 2018-04-10 | 2019-03-22 | 吉林大学 | Ice sheet hot melt drilling surrounding ice sheet and melt water thermo parameters method detection device and method |
| CN108225612A (en) * | 2018-04-10 | 2018-06-29 | 吉林大学 | Ice sheet hot melt drilling surrounding ice sheet and melt water thermo parameters method detection device and method |
| CN108519405A (en) * | 2018-05-02 | 2018-09-11 | 中国科学院寒区旱区环境与工程研究所 | A set of testing equipment for studying power and deformation relationship during body frost heaving |
| CN108614095A (en) * | 2018-05-15 | 2018-10-02 | 河海大学 | A kind of test device of test method and the frost heave strain of unsaturation porous asphalt mixture freezing and thawing performance |
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