CN110031367A - A kind of frozen soil steam migration monitoring device - Google Patents
A kind of frozen soil steam migration monitoring device Download PDFInfo
- Publication number
- CN110031367A CN110031367A CN201910243174.3A CN201910243174A CN110031367A CN 110031367 A CN110031367 A CN 110031367A CN 201910243174 A CN201910243174 A CN 201910243174A CN 110031367 A CN110031367 A CN 110031367A
- Authority
- CN
- China
- Prior art keywords
- temperature control
- control disk
- outer cylinder
- monitoring device
- soil sample
- 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
- 239000002689 soil Substances 0.000 title claims abstract description 107
- 238000012806 monitoring device Methods 0.000 title claims abstract description 26
- 238000013508 migration Methods 0.000 title claims description 15
- 230000005012 migration Effects 0.000 title claims description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000004321 preservation Methods 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 238000011160 research Methods 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000011521 glass Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229940099259 vaseline Drugs 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N2013/003—Diffusion; diffusivity between liquids
Abstract
The invention discloses a kind of frozen soil steam to migrate monitoring device, including sample ontology, regulating temperature and humidity mechanism and mechanism for monitoring；Sample ontology includes soil sample, the inner cylinder for placing soil sample, the outer cylinder being set on the outside of inner cylinder and the heat-preservation cotton for being wrapped in outer cylinder periphery；Regulating temperature and humidity mechanism includes upper temperature control disk, lower temperature control disk and moisturizing unit, upper temperature control disk is placed in inner cylinder and upper temperature control disk is covered on above soil sample, lower temperature control disk is placed in outer cylinder, and there are separation layer between lower temperature control disk and soil sample bottom, moisturizing unit includes aqueduct and is connected to separation layer by aqueduct；Mechanism for monitoring includes temperature sensor, moisture transducer, displacement meter and pressure gauge, and temperature sensor and moisture transducer are mounted on above soil sample through the side wall of inner barrel and outer barrel to soil sample internal stretch, displacement meter and pressure gauge.The device of the invention is able to achieve the research to frozen soil water (vapour) Transport under one-dimension temperature gradient, deeply discloses micro- Frost heaving mechanism of unsaturation coarse-grained soil.
Description
Technical field
The invention belongs to geotechnological low-temperature test fields, and in particular to a kind of frozen soil steam migration monitoring device.
Background technique
To 2016 end of the year China express railway revenue kilometres up to 22980 kilometers, the passenger traffic volume accounts for railway specific gravity for cut-off
43.4%, however have nearly 75% route in northern seasonal frost region.During cold area's high speed railway construction and operation, soil freezing heave
The stability of cold regions engineering can be seriously affected, in some instances it may even be possible to cause the engineering diseases such as cracking, landslide, infiltration.Subgrade stability
Research is all engineering practice and the emphasis problem in science that frozen soil theory is closely connected all the time.
In the more developed pore structure of coarse-grained soil, the migration of the liquid water due to caused by capillary force is relatively limited, for example,
The segregation potential of the rigid ice model and Konrad of Miller (1978) and Morgenstern (1981) is theoretical, but before
Contribution of the steam migration to change of moisture content is but then had ignored as the object for stressing to consider in research achievement.Coarse-grained soil has
Different from the structure feature of fine grained soil, high-speed railway runs strict demand and shallow-layer coarse grained soil filler of the ride comfort to subgrade deformation
Micro- frost heave is different from the particularity of traditional frost heave, is one of the research hotspot of cold regions engineering in recent years.How engineering is forecast in advance
Disease, and corresponding control measure is provided, it be unable to do without to steam migration in the micro- process of frost heave of coarse-grained soil into the correct understanding of ice.
Currently, for the device for studying a set of maturation not yet of frozen soil steam migration.Finally contain for simply testing
Water and deformation result, assembling or the traditional frost heave equipment of improvement, can only meet reluctantly.But will lead to different results of study can not
Lateral comparison, to process of frost heave also can not back analysis, seriously constrain the development of the understanding and cold regions engineering to micro- frost heave.
Summary of the invention
The purpose of the present invention is to provide a kind of frozen soil steam to migrate monitoring device, which is able to achieve to one-dimension temperature ladder
The research for spending lower frozen soil water (vapour) Transport, deeply discloses micro- Frost heaving mechanism of unsaturation coarse-grained soil, and multi-functional, high-precision
Degree is extensively applicable in.
To achieve the above object, the technical solution used in the present invention are as follows:
A kind of frozen soil steam migration monitoring device, the frozen soil steam migration monitoring device includes sample ontology, warm and humid tune
Control mechanism and mechanism for monitoring；
The sample ontology includes soil sample, the inner cylinder for placing soil sample, the outer cylinder being set on the outside of inner cylinder and is wrapped in
The heat-preservation cotton of outer cylinder periphery；
The regulating temperature and humidity mechanism includes upper temperature control disk, lower temperature control disk and moisturizing unit, and the upper temperature control disk is placed on institute
It states in inner cylinder and upper temperature control disk is covered on above soil sample, the lower temperature control disk is placed in the outer cylinder, and lower temperature control disk and soil
There are separation layer between sample bottom, the moisturizing unit includes aqueduct and is connected to the separation layer by aqueduct；
The mechanism for monitoring includes temperature sensor, moisture transducer, displacement meter and pressure gauge, the temperature sensor and
Moisture transducer runs through the side wall of inner barrel and outer barrel to soil sample internal stretch, and the displacement meter and pressure gauge are mounted in soil sample
Side.
Preferably, the side wall of the inner barrel and outer barrel is equipped with mounting hole arranged in pairs, each pair of mounting hole includes opening
Several separate wells being located on inner cylinder side wall, and the strip-shaped hole including being provided on outer tube side wall, the strip-shaped hole with it is several
The arrangement path of separate wells is adapted, and the temperature sensor or moisture transducer run through separate wells and bar shaped in a state of use
Kong Houxiang soil sample internal stretch.
Preferably, the inner barrel and outer barrel is the cylindrical body of both ends open, inner hollow, if in each pair of mounting hole
Dry separate wells are arranged along the short transverse of cylindrical body, and the strip-shaped hole extends along the short transverse of cylindrical body, the strip-shaped hole
Extend the arrangement total length that total length is greater than several separate wells.
Preferably, the internal diameter of the outer cylinder is 2~3mm bigger than the outer diameter of the inner cylinder.
Preferably, the inner wall of the side wall and the inner cylinder of the upper temperature control disk reclines, the upper temperature control disk includes stacked
Dish and the first lower dish on fixed first, and the stacked position of dish and the first lower dish is equipped with coil pipe on first, the coil pipe connects
It is connected to cryostat hose, dish is equipped with threaded hole on described first, and the threaded hole is connected with monitoring platform, the displacement meter or pressure
The installation position of power meter and the monitoring platform are adapted.
Preferably, the inner wall of the side wall and the outer cylinder of the lower temperature control disk reclines, the lower temperature control disk includes stacked
Dish and the second lower dish on fixed second, and the stacked position of dish and the second lower dish is equipped with coil pipe on second, the coil pipe connects
It is connected to cryostat hose, dish and the second lower dish are equipped with the moisturizing channel for avoiding the aqueduct on described second.
Preferably, the separation layer with a thickness of 2cm.
Preferably, being placed with permeable stone or porous plate in the separation layer.
Preferably, frozen soil steam migration monitoring device further includes supporting mechanism, the supporting mechanism include top cover,
Pedestal, top plate and bottom plate；
The top cover is connected to the top of the outer cylinder, and the pedestal is connected to the bottom of the outer cylinder, the top cover and
Bracket is connected between pedestal, the top cover and pedestal include the first annulus and the second annulus, the inner circle of first annulus
Radius is less than the inner circle radius of the second annulus, and the end face of the outer cylinder offsets with the first annulus, and the side wall of the outer cylinder is limited
In the second annulus.
Preferably, the top plate and bottom plate are plate, the bottom plate connects top plate, first circle by fixed column
Support leg is connected between ring and bottom plate, the top plate is equipped with the threaded hole for connecting displacement meter or pressure gauge.
Compared with prior art, frozen soil steam provided by the invention migration monitoring device include it is following the utility model has the advantages that
1, sample ontology includes two concentric test specimen tubes, and vaseline lubrication is smeared between inside and outside barrel, is avoided due to moisture
It is accumulated into ice and causes temperature control disk that can not move freely, influence the generation and measurement of frost heaving amount；Simultaneously to prevention amount of heat
Play the role of along soil sample radial propagation positive.
2, separation layer is set between lower temperature control disk and soil sample bottom, it can be according to research object (liquid water, vaporous water) point
Not Fang Zhi permeable stone or porous plate, be able to achieve and Transport of the different phase water under soil sample frozen state studied.
3, the instrument of measurement test major parameter is all made of uniform diameters, and is fixed on mounting plate matched with its, can
The measurement test for realizing a device multi-parameter, has broad applicability.
4, frost heaving amount, communication line and data collection terminal real-time, interactive are measured using displacement meter, it can be to soil sample frost heave overall process
It is captured, and also has biggish promotion in measurement accuracy.
5, the acquisition of each test data (temperature, moisture, displacement, frost-heave force) is all made of number and adopts instrument and carry out automatically, solves
The problem of can not normally reading during the test, it is truly realized mobilism；Greatly reduce artificial workload；People is evaded
For accidental error caused by reading.
Detailed description of the invention
Fig. 1 is the sectional view of sample ontology of the invention, regulating temperature and humidity mechanism and part supporting mechanism；
Fig. 2 is the structural schematic diagram that frozen soil steam of the present invention migrates monitoring device；
Fig. 3 is the part-structure explosive view that frozen soil steam of the present invention migrates monitoring device；
Fig. 4 is the attachment structure schematic diagram of the present invention upper temperature control disk and displacement meter；
Fig. 5 is the structural schematic diagram of moisturizing unit of the present invention；
Fig. 6 is the attachment structure schematic diagram of pressure gauge of the present invention.
1, cryostat hose；2, moisture transducer；3, inner cylinder；4, bracket；5, outer cylinder；6, lower temperature control disk；7, the second annulus；8,
Top cover；9, upper temperature control disk；10, the first separate wells；11, temperature sensor；12, the first strip-shaped hole；131, the first screw；132,
Two screws；133, third screw；14, the first annulus；15, support leg；16, moisturizing unit；1601, guide rail；1602, sliding block；
1603, Markov bottle graduated cylinder；1604, hoop；18, separation layer；19, groove；201, displacement meter connection；202, pressure gauge communicates
Line；21, monitoring platform；22, heat-preservation cotton；23, bottom plate；241, the first nut；242, the second nut；25, top plate；26, displacement meter；
27, fixed column；281, the first threaded hole；282, the second threaded hole；29, entrance is recycled；30, coil pipe；311, the first screw thread；
312, the second screw thread；32, mounting plate；33, soil sample；34, pressure gauge.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It should be noted that when component be referred to as with another component " connection " when, it can directly with another component
It connects or there may also be components placed in the middle；When component is referred to as with another component " fixation ", it can directly and separately
One component is fixed or there may also be components placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body is not to be to limit the present invention.
As shown in Figure 1 and Figure 2, a kind of frozen soil steam migrates monitoring device, including sample ontology, regulating temperature and humidity mechanism and prison
Survey mechanism.
The sample ontology of the present embodiment includes soil sample 33, inner cylinder 3, outer cylinder 5 and heat-preservation cotton 22.Soil sample 33 is placed in sample
The inside of cylinder 3, outer cylinder 5 are set in the outside of inner cylinder 3, and heat-preservation cotton 22 is wrapped in the periphery of outer cylinder 5.
Regulating temperature and humidity mechanism includes upper temperature control disk 9, lower temperature control disk 6 and moisturizing unit 16, and upper temperature control disk 9 is placed on inner cylinder 3
In and upper temperature control disk 9 be covered on the top of soil sample 33, lower temperature control disk 6 is placed in outer cylinder 5, and lower temperature control disk 6 and 33 bottom of soil sample
Between there are separation layer 18, moisturizing unit 16 includes aqueduct and is connected to separation layer 18 by aqueduct；
Mechanism for monitoring includes temperature sensor 11, moisture transducer 2, displacement meter 26 and pressure gauge 34, temperature sensor 11
Side wall with moisture transducer 2 through inner cylinder 3 and outer cylinder 5 is mounted on to 33 internal stretch of soil sample, displacement meter 26 and pressure gauge 34
33 top of soil sample.
The sample ontology of the present embodiment reserves separation layer 18 in 33 bottom of soil sample using the design of double sleeves with one heart, thus
Realize the purpose of research vapour complex；Weaken interference of the amount of heat along soil sample radial propagation to temperature field；It is most important
Be to be solve the problems, such as that inner cylinder 3 and upper temperature control disk 9 is caused to freeze not moving freely at ice due to moisture accumulation.This
Device is able to achieve the research to frozen soil water (vapour) Transport under one-dimension temperature gradient, deeply discloses micro- jelly of unsaturation coarse-grained soil
Swollen mechanism, and have the characteristics that multi-functional, high-precision, be extensively applicable in.
In one embodiment, inner cylinder 3 is set and outer cylinder 5 contacts with each other even smearing vaseline at position and excludes to rub to lubricate
Wipe the inhibition that resistance deforms soil freezing heave；When in addition loading, strict control initial aqueous rate, and divide five layers by compactness is calculated
Compacting forming；33 specific size of soil sample is diameter 12cm, high 15cm, can carry out laboratory proportion according to actual condition, can also be straight
It connects using undisturbed soil.
Inner cylinder 3 uses organic glass material, with good weatherability, higher surface hardness, good low temperature properties
Energy and easy processing, meet the indices requirement of frost heave test；The specific size of inner cylinder 3 is internal diameter 12cm, wall thickness 1cm, height
20cm；In installation process, vaseline lubrication is smeared accordingly in its outer wall, and be inserted in outer cylinder 5.
Outer cylinder 5 equally also uses organic glass material, and the height setting of outer cylinder 5 is higher than the height of inner cylinder 3,5 size of outer cylinder
For internal diameter 14cm, wall thickness 1cm, high 30cm；It should be noted that the tolerance that the internal diameter of outer cylinder 5 allows to have 2~3mm is (only very much not
It is small), i.e. the internal diameter of permission outer cylinder 5 is 2~3mm bigger than the outer diameter of inner cylinder 3.The internal diameter that outer cylinder 5 is arranged has the original of tolerance bigger than normal
Because being: micro- tympanites deformation outward caused by due to resist frost-heave force when evading the lateral confinement power deficiency of inner cylinder 3, inside and outside cylinder phase mutual connection
Touching, which squeezes, can generate biggish frictional resistance, influence the generation and measurement of frost heave, therefore rich certain gap is needed to make in it
The inner cylinder 3 in portion can move freely.
In one embodiment, it for the ease of the installation of various kinds of sensors, is opened up on the side wall of inner cylinder 3 and outer cylinder 5 in pairs
The mounting hole of arrangement, each pair of mounting hole include several separate wells being provided on 3 side wall of inner cylinder, and including being provided with outer cylinder 5
The arrangement path of strip-shaped hole on side wall, strip-shaped hole and several separate wells is adapted, and temperature sensor 11 or moisture transducer 2 exist
To 33 internal stretch of soil sample after separate wells and strip-shaped hole under use state.It is easily understood that arranged in pairs in description
When mounting hole, several separate wells are seen as an entirety, then form pairs of relationship with strip-shaped hole.Separate wells in each pair of mounting hole
Quantity is opened up as needed.
The arragement direction of several separate wells can be adjusted according to design requirement, such as be can be straight line arrangement or interlocked
Arrangement etc..In one embodiment, inner cylinder 3 and outer cylinder 5 are the cylindrical body of both ends open, inner hollow, in each pair of mounting hole
Several separate wells are arranged (short transverse that direction A is cylindrical body in Fig. 1) along the short transverse of cylindrical body, and strip-shaped hole is along cylinder
The short transverse of body extends, the arrangement total length for extending total length and being greater than several separate wells of strip-shaped hole.
As shown in figure 3, the present embodiment opens up 2 pairs of mounting holes on the side wall of inner cylinder 3 and outer cylinder 5, a pair of of mounting hole is used for
Mounting temperature sensor 11, another pair mounting hole is for installing moisture transducer 2.Specifically, it is used for mounting temperature sensor 11
A pair of of mounting hole are as follows: inner cylinder 3 side be arranged interval 15mm, internal diameter 5mm the first separate wells 10, the first separate wells 10
For the circular hole for mounting temperature sensor 11, and the arrangement total length of several first separate wells 10 is L1, in the correspondence of outer cylinder 5
Position is equipped with the first strip-shaped hole 12 of wide 10mm, high 150mm, and the extension total length of first strip-shaped hole 12 is L2, in order to avoid
Interfere 33 frost-heaving deformation of soil sample, setting extends total length L 2 and is greater than arrangement total length L 1.
Another pair is used to install the mounting hole of moisture transducer 2 are as follows: is provided on 3 side wall of inner cylinder and 10 phase of the first separate wells
Second separate wells of opposite side, since there are two detectors for the tool of moisture transducer 2, therefore it is two column longitudinal pitches that the second separate wells, which are arranged,
The square through hole (not shown) of the long 5mm of 30mm, lateral clear spacing 8mm, high 2mm offer width on the side wall of outer cylinder 5
The second strip-shaped hole (not shown) of 20mm, high 150mm.
The arrangement total length for extending total length and being greater than several second separate wells of the second strip-shaped hole of same setting, is frost heave
It is displaced reserved space, and protects the safety of sensor, and outer cylinder 5 mainly helps out, to lateral confinement rigidity without strict demand, therefore
Strip-shaped hole should suitably widen, to reserve activity space；Angle should be adjusted during sleeve, make it to form complete sensing
Device mounting hole.
In one embodiment, heat-preservation cotton 22 uses polystyrene material, and thermal coefficient is less than 0.03W/m/K, can be effective
Reduce the lateral lost of soil sample heat；It is in 5 periphery of outer cylinder around several circles of package；It is twined after the completion of package with transparent wide adhesive tape
Around guaranteeing its tightness, further increase monitoring environment；It is worth noting that, sensor laying should be noticed in encapsulation process
Position.
In one embodiment, as shown in figure 4, upper temperature control disk 9 guarantees its excellent thermal conductivity using the high-quality aluminium production of T5
Energy；It is its following table face closure, smooth, smooth, it is in close contact with soil sample 33, side is bonded with the inner wall of inner cylinder 3, having a size of diameter
The cylindrical body of 120mm, high 40mm.
The assembling form of upper temperature control disk 9 includes dish and the first lower dish, upper and lower each thickness 2cm of dish, with 4 on the first of stacked fixation
133 twist-on of third screw of M4 × 30；Two-way ring is preset under dish and first between butterfly on first around, single-entry single-out disk
Pipe 30 can guarantee that the temperature of upper temperature control disk 9 everywhere is uniform to the full extent；Refrigerant circulation liquid passes through in the circulation disengaging of entrance 29
Temperature control disk 9 passes through extraneous temperature control cryostat case supply；Extraneous temperature control cryostat case is closed by cryostat hose 1 and the formation of upper temperature control disk 9
Circuit is closed, realizes temperature control.
Refrigerant circulation liquid in the present embodiment uses good anti-icing fluid, and freezing point is easily-controllable, minimum still to keep at -60 DEG C
Liquid condition；Metal antirusting agent is added in it, is formed protective film in metal surface, not will cause coil pipe in long-term use process
30 corrosion even blocks.
Circulation entrance 29 protrudes from the upper surface of temperature control disk 9, and port is slightly less than the internal diameter of cryostat hose 1 thereon；?
Circulation entrance 29 is squeezed into cryostat hose 1 in installation process, and is tightened with self-locking nylon cable tie or installation nut, is prevented
It is detached from both in pumping procedure, causes security risk.
In order to improve the compact of component connection, second threaded hole 282 is set in the upper surface of upper temperature control disk 9, it is mating to make
Second screw thread 312 is connected thereto by way of screwing, and it is flat to be threaded with monitoring for the second threaded hole 282 in the present embodiment
Platform 21, reflection soil sample frost-heaving deformation, the installation position and the monitoring of displacement meter 26 and pressure gauge 34 are flat indirectly for the monitoring platform 21
Platform is adapted, in order to obtain most accurate monitoring data.
Cryostat hose 1 uses low temperature resistant silica gel translucent tube, and resilience is good and inner wall smooth, will not cause due to bending
Water flow is unsmooth；Certain flexibility is still able to maintain under low-temperature condition；Chemical property is good, follows advantageously by the refrigerant of each ingredient
Ring liquid.
In one embodiment, the inner wall of the side wall and outer cylinder 5 of lower temperature control disk 6 reclines, and lower temperature control disk 6 includes stacked fixed
Dish and the second lower dish on second, and the stacked position of dish and the second lower dish is equipped with coil pipe on second, it is soft that coil pipe is connected with cryostat
Pipe.It is essentially identical by the structure of lower temperature control disk 6 in this present embodiment and the structure of upper temperature control disk 9, therefore to the group of lower temperature control disk
Dress form and the installation of coil pipe etc. are no longer repeated.
Unlike upper temperature control disk 9, the size of lower temperature control disk 6 is diameter 140mm × high 40mm cylindrical body.Lower temperature control
The upper surface of disk 6 is open strainer (as shown in Figure 3), and circulation entrance 29 is arranged in lower surface, is circulated in by cryostat hose
Another external world's temperature control cryostat case, to the independent control of temperature, to meet the simulation of more different operating conditions；Inside upper temperature control disk 9 compared with
Upper temperature control disk more than 9 increases moisturizing channel (not shown), and moisturizing channel is for avoiding aqueduct, to realize groundwater condition
Simulation.
In one embodiment, setting 18 thickness of separation layer is 2cm, according to the difference of research object (vaporous water, liquid water), is divided
It She Zhi not permeable stone or porous plate.
Specifically, when research object is liquid water, 2cm thickness permeable stone is set at separation layer 18, adjusts moisturizing height,
Guarantee not cross 33 bottom surface of soil sample, the bottom of soil sample 33 is contacted with water；When research object is vaporous water, according to the hole of soil sample 33
Rate selects the 2cm thickness porous plate of suitable percent opening to be placed in separation layer 18, and the maximum height of moisturizing is arranged lower than 33 bottom of soil sample
Face keeps soil sample 33 not direct and liquid water contact.
In one embodiment, as shown in figure 5, moisturizing unit adjusts moisturizing height, moisturizing unit packet using Markov bottle graduated cylinder
The guide rail 1601 for being fixed on (back side or side) outside insulating box is included, guide rail 1601 matches 2 sliding blocks 1602 up and down, each cunning
Hoop 1604 is equipped on block 1602, by tightening the knob of hoop 1604 to clamp Markov bottle graduated cylinder 1603.In moisturizing
In the process, the position of adjusting slider 1602, rotary spanner is fixed after Markov bottle graduated cylinder 1603 to ideal height, then into
Row moisturizing.It should be noted that be the prior art in relation to Markov bottle graduated cylinder 1603, water supplementing method and sliding block fixed form,
This, which does not do, excessively repeats.
In one embodiment, monitoring system includes temperature sensor 11, moisture transducer 2 and displacement meter 26.It needs
Bright, the deformation that the displacement meter 26 and pressure gauge 34 referred in the present invention is respectively used to measurement frost heave soil sample is located at and frost heave
Power, displacement meter 26 and pressure gauge 34 are selected according to needed for test, and the two can select a use, can also successively be used.
Temperature sensor 11 uses PT100 thermoelectricity resistance type sensor, diameter 0.4cm, a length of 3cm；Electricity can be recorded in real time
Resistance data react the temperature of each layer of soil sample 33, and reachable ± 0.02 DEG C of precision；It is inserted into reserved first separate wells 10 and enters soil sample 33；
It is demarcated under multiple normal temperatures using preceding, last observed temperature can convert to obtain via following formula:
Wherein, T
For observed temperature (DEG C), A, B, Xa、Yb、ZcTo demarcate fitting coefficient, R is the collected resistance value of data collecting instrument (Ω), R0For
Conductor resistance (Ω) in addition to thermal resistance.
Moisture transducer 2 using Decagon the small-sized soil moisture sensor of EC-5, having a size of 8.9 × 1.8 × 0.7cm,
Wherein pop one's head in long 5.6cm, wide 1.5cm thickness 0.15cm；Capacitance data can be recorded in real time to react the volume of aqueous of each layer of soil sample 33
Amount, the reachable ± 3%VWC (EC < 8dS/m) of precision；- 40~50 DEG C of Applicable temperature range；It is inserted into the second separate wells and enters soil sample 33；
With compact structure, simple, waterproof ability is strong, and rotproofness is strong, and measurement accuracy is high, reliable performance, by soil salt content influenced compared with
The advantages such as small.
A kind of mounting means of sensor is as follows: can first be inserted into size and sensor before being packed into soil sample 33 in inner cylinder 3
Similar metal embedded part of popping one's head in extracts built-in fitting after the completion of the compacting work of soil sample 33, is inserted into sensor.The peace
Dress mode includes two benefits: one avoids the Secondary Disturbance due to insertion sensor to compacted samples；Secondly prevention and treatment
Soil sample sensor after being compacted is difficult to the occurrence of being inserted into, and protects sensor during insertion from damage, extending makes
Use the service life.
Displacement meter 26 uses the IL-065 laser displacement sensor of Keyence, having a size of 4 × 2 × 4cm；It can record in real time
The upper incident light of CMOS is displaced to react the frost heaving amount of soil sample 33, repeatable accuracy 2um, the linearity ± 0.1%F.S, reference distance
65mm；- 10~50 DEG C of Applicable temperature range (can meet most study conditions, if being unsatisfactory for that ad eundem contact can be used instead
Displacement meter)；It is fixed on the mounting plate 32 for be suitble to its size (such as using the second screw 132 and the second nut 242 of 2 M3.5
Shown in Fig. 4).
It processes mounting plate 32 and the first screw thread 311 forms, pass through rotation and 281 twist-on of the first threaded hole；Subsequent movement is
The sample ontology of assembling, the red semiconductor laser (wavelength 655nm) for issuing displacement meter 26 are beaten as far as possible in monitoring platform 21
Center.
Monitoring platform 21 and the second screw thread 312 form, and guarantee that its upper surface is smooth, smooth, avoid gene basis deflection and make
At the risk of measurement error；By rotation and 282 twist-on of the second threaded hole, it is allowed to keep identical displacement with upper temperature control disk 9.
After remaining part is completed, displacement meter connection 201 sticks at top plate 25 with adhesive tape, prevents due to its gravity original
Because influencing to measure；Instrument is adopted with extraneous number by specifically outlet and is connected in its end.
Temperature sensor 11, moisture transducer 2, displacement meter 26, pressure gauge 34 support number to adopt, the DT80 of DataTaker
Data collector can pass through simulation and digital channel, high-speed counter, pulse input, programmable sensor and serial logical
Pipeline joint connects a series of sensor, realizes that temperature, voltage, electric current, resistance, capacitor, electric bridge, frequency carry out data simultaneously and adopt
Collection；It solves the problems, such as normally read during the test, is truly realized mobilism；Greatly reduce artificial work
Amount；Accidental error caused by artificial reading is evaded.
In another embodiment, as shown in fig. 6, the embodiment can realize the measurement to Frost heave of frozen soil power；By monitoring platform
21 replace with cylindrical body, are fastened to the first threaded hole 281 and the second screw thread by the first screw thread 311 and the rotation of the second screw thread 312
Hole 282, installs pressure gauge 34 therebetween, and the pressure gauge connection 202 of pressure gauge 34 adopts instrument phase with extraneous number by specifically exporting
Even；Remaining component assemble mode is identical.
In one embodiment, frozen soil steam migration monitoring device further includes supporting mechanism, and supporting mechanism includes top cover 8, bottom
Seat, top plate 25 and bottom plate 23.
Bottom plate 23 and top plate 25 are plate, and the upper top steel plate of respectively insulating box and it is lower support steel plate, more traditional constant temperature
Thickening appropriate is needed for case, enables meet under frost-heave force or loading environment the needs of to rigidity, is to realize the present invention
The basic condition of energy multifunctional use.Insulating box is the efficient apparatus for maintaining experimental enviroment, monitoring device disclosed in this invention
It is also positioned in insulating box.
Fixed column 27 is connected between bottom plate 23 and top plate 25, the both ends screw thread of fixed column 27 leads to bottom plate 23 and top plate 25
It crosses the first nut 241 and is aided with connection, top plate 25 is equipped with the threaded hole for connecting displacement meter 26 or pressure gauge 34, two fixations
The clear distance of column 27 should be greater than assembled sample ontology, and there are certain operating spaces, its object is to reduce both ends span,
Deflection deformation occurs for plate body when avoiding being further applied load or surveying frost-heave force, influences result accuracy.
Top cover 8 is connected to the top of outer cylinder 5, and pedestal is connected to the bottom of outer cylinder 5, branch is connected between top cover 8 and pedestal
Frame 4 is connected with support leg 15 between pedestal and bottom plate 23, sample ontology is integrally maked somebody a mere figurehead in certain altitude on bottom plate 23, is reserved
The bend pipe space of lower part cryostat hose 1 and aqueduct, avoids causing to block due to broken pipe.
In order to avoid the extension of each tube body, the structure of top cover 8 and pedestal is disposed as including the first annulus 14 and the second circle
Ring 7, the first annulus 14 and the second annulus 7 are stacked to be fixed.
The threaded hole including 4 support legs, 15,4 the first screws of bracket 4 and 4 131 is reserved on first annulus 14, the
Extension channel of the hollow inner circle of one annulus 14 as cryostat hose 1 and aqueduct；And in order to place lower temperature control disk 6, setting the
The internal diameter of one annulus 14 is smaller than lower 6 diameter of temperature control disk.
Second annulus 7 is fixed on the first annulus 14 by 4 the first screws 131；The inner circle radius of first annulus 14 is less than
The inner circle radius of second annulus 7, thus the first annulus 14 and the second annulus 7 it is stacked it is fixed after, the difference in internal diameters of the two is different form it is recessed
Slot 19；Outer cylinder 5 is placed in the groove 19, and the end face of outer cylinder 5 offsets with the first annulus 14, and the side wall of outer cylinder 5 is limited to
Two annulus 7.Groove 19 limits the horizontal displacement of outer cylinder 5 and lower temperature control disk 6, is equipped with O-ring seal therebetween, guarantees equipment sealing
Property.O-ring seal is made of silica gel material, primarily serves the effect of sealing antiseepage；The leakproofness of substructure is to guarantee to mend
Water number is according to accurate premise, if not reaching expected, supplemented glass cement is sealed；Glass cement sealing and resistance to low temperature are good
Good, key is easy to disassemble, processing.
Top cover 8 and pedestal conveniently adapt to various sizes of soil sample in the form of assembling, only need to change difference during this period
Second annulus 7 of internal diameter.
Pedestal and top cover 8 are connected by 4 brackets 4, and outer cylinder 5 is embedded in upper and lower two grooves, after the completion of connection its
Vertical displacement is also limited, but is had no effect to inner cylinder 3, and Pass Test is expected.In order to improve the heat preservation effect to test specimen tube
Fruit can also wrap up heat-preservation cotton 22 in the outside of bracket 4.
The factor for influencing soil freezing heave includes: soil property, moisture, temperature, load, structure；The present invention can be to above-mentioned factor
It is adjusted and tests, more crucially introduce the test method of frozen soil vapour complex and solve temperature control disk and sample
Cylinder freezes irremovable problem.
A kind of embodiment operating process of frozen soil steam migration monitoring device of the invention is as follows:
1, assembly and connection includes inner/outer tube, upper and lower temperature control disk, pedestal, temperature sensor, moisture transducer, laser displacement
The components such as meter, data collecting instrument, cryostat hose.
2, no-load test is carried out by testing program, measures the compensation temperature between observed temperature and set temperature, then adjust
Temperature control equation, accurate Control experiment temperature.
3, soil sample is first placed in baking oven and is dried, the moisture content according to needed for testing program, after soil sample and water uniform stirring
Being packed into standing in moisturizing vessel is distributed uniform moisture in 24 hours；Then soil sample is layered loading inner wall and has been coated with vaseline lubrication
Machine glass inner cylinder, and by the compactness of calculating divide five laminations in fact shape, obtain expected soil body sample.
4, temperature sensor and moisture transducer are inserted into inside soil body；And as required to certain open position sealants
Sealing；Several circles of heat-preservation cotton are wrapped up on the outside of sample outer cylinder again.
5, laser displacement gauge is installed, laser point beam face location Platform center is made；Markov bottle graduated cylinder is fixed, moisturizing is made
Height reaches expected, and records；Close operation window.
6, mode is adopted in computer end setting temperature-controlled parameter sum number；After test period to be achieved, data, plot analysis are exported.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not present
Contradiction all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of frozen soil steam migrates monitoring device, which is characterized in that the frozen soil steam migration monitoring device includes sample sheet
Body, regulating temperature and humidity mechanism and mechanism for monitoring；
The sample ontology includes soil sample, the inner cylinder for placing soil sample, the outer cylinder being set on the outside of inner cylinder and is wrapped in outer cylinder
The heat-preservation cotton of periphery；
The regulating temperature and humidity mechanism includes upper temperature control disk, lower temperature control disk and moisturizing unit, and the upper temperature control disk is placed in described
In cylinder and upper temperature control disk is covered on above soil sample, and the lower temperature control disk is placed in the outer cylinder, and lower temperature control disk and soil sample bottom
There are separation layer between portion, the moisturizing unit includes aqueduct and is connected to the separation layer by aqueduct；
The mechanism for monitoring includes temperature sensor, moisture transducer, displacement meter and pressure gauge, the temperature sensor and moisture
Sensor is mounted on above soil sample through the side wall of inner barrel and outer barrel to soil sample internal stretch, the displacement meter and pressure gauge.
2. frozen soil steam as described in claim 1 migrates monitoring device, which is characterized in that on the side wall of the inner barrel and outer barrel
Equipped with mounting hole arranged in pairs, each pair of mounting hole includes several separate wells being provided on inner cylinder side wall, and including opening up
The arrangement path of strip-shaped hole on outer tube side wall, the strip-shaped hole and several separate wells is adapted, the temperature sensor or
Moisture transducer runs through after separate wells and strip-shaped hole in a state of use to soil sample internal stretch.
3. frozen soil steam as claimed in claim 2 migrates monitoring device, which is characterized in that the inner barrel and outer barrel is both ends
It is open, the cylindrical body of inner hollow, several separate wells in each pair of mounting hole are arranged along the short transverse of cylindrical body, the bar shaped
Hole extends along the short transverse of cylindrical body, the arrangement total length for extending total length and being greater than several separate wells of the strip-shaped hole.
4. frozen soil steam as claimed in claim 3 migrates monitoring device, which is characterized in that the internal diameter of the outer cylinder is interior than described
Big 2~the 3mm of outer diameter of cylinder.
5. frozen soil steam as described in claim 1 migrates monitoring device, which is characterized in that the side wall of the upper temperature control disk and institute
The inner wall for stating inner cylinder reclines, and the upper temperature control disk includes dish and the first lower dish on stacked fixed first, and dish and the on first
Once the stacked position of dish is equipped with coil pipe, and the coil pipe is connected with cryostat hose, and dish is equipped with threaded hole, institute on described first
It states threaded hole and is connected with monitoring platform, the installation position and the monitoring platform of the displacement meter or pressure gauge are adapted.
6. frozen soil steam as described in claim 1 migrates monitoring device, which is characterized in that the side wall of the lower temperature control disk and institute
The inner wall for stating outer cylinder reclines, and the lower temperature control disk includes dish and the second lower dish on stacked fixed second, and dish and the on second
The stacked position of two lower dish is equipped with coil pipe, and the coil pipe is connected with cryostat hose, sets on dish and the second lower dish on described second
There is the moisturizing channel for avoiding the aqueduct.
7. frozen soil steam as described in claim 1 migrates monitoring device, which is characterized in that the separation layer with a thickness of 2cm.
8. frozen soil steam as described in claim 1 migrates monitoring device, which is characterized in that be placed in the separation layer permeable
Stone or porous plate.
9. frozen soil steam as described in claim 1 migrates monitoring device, which is characterized in that the frozen soil steam migration monitoring dress
Setting further includes supporting mechanism, and the supporting mechanism includes top cover, pedestal, top plate and bottom plate；
The top cover is connected to the top of the outer cylinder, and the pedestal is connected to the bottom of the outer cylinder, the top cover and pedestal
Between be connected with bracket, the top cover and pedestal include the first annulus and the second annulus, the inner circle radius of first annulus
Less than the inner circle radius of the second annulus, the end face of the outer cylinder offsets with the first annulus, and the side wall of the outer cylinder is limited to
Two annulus.
10. frozen soil steam as claimed in claim 9 migrates monitoring device, which is characterized in that the top plate and bottom plate are flat
Plate, the bottom plate connect top plate by fixed column, support leg are connected between first annulus and bottom plate, is set on the top plate
Have by connection position shifting based on or pressure gauge threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243174.3A CN110031367A (en) | 2019-03-28 | 2019-03-28 | A kind of frozen soil steam migration monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243174.3A CN110031367A (en) | 2019-03-28 | 2019-03-28 | A kind of frozen soil steam migration monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110031367A true CN110031367A (en) | 2019-07-19 |
Family
ID=67236823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910243174.3A Pending CN110031367A (en) | 2019-03-28 | 2019-03-28 | A kind of frozen soil steam migration monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110031367A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982868A (en) * | 2020-07-21 | 2020-11-24 | 河海大学 | Device and method for simulating migration of roadbed water vapor under freeze thawing-load coupling action |
| CN112903424A (en) * | 2021-03-17 | 2021-06-04 | 中国能源建设集团江苏省电力设计院有限公司 | Integrated multifunctional rock-soil body thermal performance in-situ tester |
| CN113447640A (en) * | 2021-09-01 | 2021-09-28 | 江苏中云筑智慧运维研究院有限公司 | Test device and method for realizing unsaturated soil water-gas thermal-power coupling effect |
| CN114894693A (en) * | 2022-04-28 | 2022-08-12 | 河南理工大学 | Small-size rock core permeability testing method and device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372284A (en) * | 2015-12-04 | 2016-03-02 | 长安大学 | Device and method for testing frost heaving parameter of soil under standard compaction work |
| CN105928966A (en) * | 2016-06-02 | 2016-09-07 | 中铁四局集团第二工程有限公司 | Frost heave test barrel and test method thereof |
| CN206339506U (en) * | 2016-12-28 | 2017-07-18 | 塔里木大学 | A kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation |
| CN107024499A (en) * | 2016-12-28 | 2017-08-08 | 塔里木大学 | One-dimensional earth pillar frost-heaving deformation analyzer |
| CN107063933A (en) * | 2017-03-20 | 2017-08-18 | 北京航空航天大学 | A kind of " pot cover effect " test instrument |
| CN207081675U (en) * | 2017-05-05 | 2018-03-09 | 沈阳建筑大学 | A kind of self-balancing body frost heaving experimental rig |
| CN108445192A (en) * | 2018-05-31 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of multi-functional frost heave, thaw collapse experimental rig |
| CN108445195A (en) * | 2018-06-26 | 2018-08-24 | 安徽理工大学 | Anti- " locking " body frost heaving test sample cylinder of one kind |
| CN208476835U (en) * | 2018-05-22 | 2019-02-05 | 石家庄铁道大学 | Soil body steam migrates follow-up mechanism under Freezing-Melting Condition |
| CN109738478A (en) * | 2019-01-18 | 2019-05-10 | 绍兴文理学院元培学院 | A kind of high-precision body frost heaving process automation monitoring system |
| CN210154987U (en) * | 2019-03-28 | 2020-03-17 | 绍兴文理学院元培学院 | Frozen soil water vapor migration monitoring devices |
| CN112858138A (en) * | 2021-03-04 | 2021-05-28 | 吉林大学 | Seepage test device and method for porous medium freeze thawing process |
-
2019
- 2019-03-28 CN CN201910243174.3A patent/CN110031367A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372284A (en) * | 2015-12-04 | 2016-03-02 | 长安大学 | Device and method for testing frost heaving parameter of soil under standard compaction work |
| CN105928966A (en) * | 2016-06-02 | 2016-09-07 | 中铁四局集团第二工程有限公司 | Frost heave test barrel and test method thereof |
| CN206339506U (en) * | 2016-12-28 | 2017-07-18 | 塔里木大学 | A kind of experimental rig for testing one-dimensional earth pillar frost-heaving deformation |
| CN107024499A (en) * | 2016-12-28 | 2017-08-08 | 塔里木大学 | One-dimensional earth pillar frost-heaving deformation analyzer |
| CN107063933A (en) * | 2017-03-20 | 2017-08-18 | 北京航空航天大学 | A kind of " pot cover effect " test instrument |
| CN207081675U (en) * | 2017-05-05 | 2018-03-09 | 沈阳建筑大学 | A kind of self-balancing body frost heaving experimental rig |
| CN208476835U (en) * | 2018-05-22 | 2019-02-05 | 石家庄铁道大学 | Soil body steam migrates follow-up mechanism under Freezing-Melting Condition |
| CN108445192A (en) * | 2018-05-31 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of multi-functional frost heave, thaw collapse experimental rig |
| CN108445195A (en) * | 2018-06-26 | 2018-08-24 | 安徽理工大学 | Anti- " locking " body frost heaving test sample cylinder of one kind |
| CN109738478A (en) * | 2019-01-18 | 2019-05-10 | 绍兴文理学院元培学院 | A kind of high-precision body frost heaving process automation monitoring system |
| CN210154987U (en) * | 2019-03-28 | 2020-03-17 | 绍兴文理学院元培学院 | Frozen soil water vapor migration monitoring devices |
| CN112858138A (en) * | 2021-03-04 | 2021-05-28 | 吉林大学 | Seepage test device and method for porous medium freeze thawing process |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982868A (en) * | 2020-07-21 | 2020-11-24 | 河海大学 | Device and method for simulating migration of roadbed water vapor under freeze thawing-load coupling action |
| CN112903424A (en) * | 2021-03-17 | 2021-06-04 | 中国能源建设集团江苏省电力设计院有限公司 | Integrated multifunctional rock-soil body thermal performance in-situ tester |
| CN113447640A (en) * | 2021-09-01 | 2021-09-28 | 江苏中云筑智慧运维研究院有限公司 | Test device and method for realizing unsaturated soil water-gas thermal-power coupling effect |
| CN113447640B (en) * | 2021-09-01 | 2021-12-14 | 江苏中云筑智慧运维研究院有限公司 | Test device and method for realizing unsaturated soil water-gas thermal-power coupling effect |
| CN114894693A (en) * | 2022-04-28 | 2022-08-12 | 河南理工大学 | Small-size rock core permeability testing method and device |
| CN114894693B (en) * | 2022-04-28 | 2023-03-28 | 河南理工大学 | Small-size rock core permeability testing method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110031367A (en) | A kind of frozen soil steam migration monitoring device | |
| Kiselev et al. | Automatic meteorological measuring systems for microclimate monitoring | |
| CN102852146B (en) | Real-time online individualized heat-exchanging intelligent temperature control system and method of mass concretes | |
| CN204154664U (en) | Soil sample freezing-thawing test device | |
| CN202126434U (en) | Measuring device for slit content in muddy water | |
| CN109738478A (en) | A kind of high-precision body frost heaving process automation monitoring system | |
| CN101949873A (en) | Device for measuring solid material heat conductivity | |
| CN210154987U (en) | Frozen soil water vapor migration monitoring devices | |
| CN100456030C (en) | Cold-hot box type heat transfer coefficient detecting instrument | |
| CN105044153A (en) | Device and method for detecting water content of crude oil | |
| CN111879794A (en) | Monitoring system for ice content of regional surface soil | |
| CN106248730B (en) | Test device for heat-insulating material performance detection | |
| CN106970433A (en) | The full-automatic precipitation and evaporation measuring system of bitubular complementary type and measuring method | |
| CN106769629A (en) | A kind of mass water content of soil detection method | |
| CN202755365U (en) | Mass concrete real time online individuation heat exchange intelligent temperature control system | |
| CN1721845A (en) | Building exterior-protected construction heat transfer coefficient on-site detecting method | |
| CN108037038A (en) | A kind of plant leaf blade absorbs the measurement device and method of atmosphere vapour amount | |
| CN210005466U (en) | high-precision automatic monitoring system for soil body frost heaving process | |
| CN104808261B (en) | Rainfall measurement sensor without mechanical structure | |
| CN110530928A (en) | Rock And Soil Measured Results of Thermal Conductivity method | |
| CN110568262A (en) | Equipment and method for steady-state detection of heat-insulating coating | |
| CN202057566U (en) | Condensed water quantity measurer | |
| CN2828810Y (en) | Cold-heat box type heat=transfer coefficient investigating instrument | |
| CN204514278U (en) | Electric power line ice-covering thickness measuring instrument | |
| CN208520669U (en) | A kind of measurement frozen soil sample unfrozen water content and can melt the device of soil sample water content |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |