CN106932558A - A kind of sealed refrigeration heater for testing salt marsh earth salt bulk - Google Patents
A kind of sealed refrigeration heater for testing salt marsh earth salt bulk Download PDFInfo
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- CN106932558A CN106932558A CN201710257294.XA CN201710257294A CN106932558A CN 106932558 A CN106932558 A CN 106932558A CN 201710257294 A CN201710257294 A CN 201710257294A CN 106932558 A CN106932558 A CN 106932558A
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- circulating pipe
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- salt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
A kind of sealed refrigeration heater for testing salt marsh earth salt bulk,Including casing,The spiral groove for installing liquid circulating pipe is provided with described box bottom,Described liquid circulating pipe is connected with low temperature thermostat bath,At least one sample case is placed with described fin,Described sample box top is provided with closing steel plate,Described sample case sample is embedded with the probe being connected with digital display sensor,Sample top is placed with through the displacement and force transfering device closed steel plate and top cover and be connected with dial gauge in described sample case,Annular rubber ring with gas tube,Foil gauge is provided between described displacement and force transfering device and annular rubber ring,Described casing top is provided with top cover,Described top cover inwall is provided with spiral groove,Liquid circulating pipe is provided with described spiral groove,Described casing and top cover outer wall is provided with heat-insulation layer；Confined space of the present invention is big, convenient reading and test data is accurate, with low cost, energy-conserving and environment-protective.
Description
Technical field
The invention belongs to salt marsh earth salt bulk test experiments device technical field, and in particular to one kind closed
Can automatically adjust and carried out in the space of temperature the swollen experiment of salt and freezing and thawing test, can test salt while salt bulk is tested
The sealed refrigeration heater of the test salt marsh earth salt bulk of expansive force when stain earth salt is swollen,.
Background technology
Salinized soil refers to that salt content exceedes a number of soil.Salt content is typically the weight with saliferous in certain soil body
The ratio between (or quality) and its dry ground weight (or quality), are expressed as a percentage.Salinized soil is worldwide widely distributed, sub-
The annual huge economic loss caused by the harm of salinized soil of many countries in continent, Middle East and Europe.With " a band one
The propulsion of road " strategy with development, it is necessary to build high-grade highway, railway in increasing saline soil area, to salt marsh geotechnique
Journey Quality Research is just particularly important.Used as a kind of special soils, most outstanding feature is containing a certain amount of in soil to salinized soil
Lyotropic salt, when these salt can fully dissolve in the water of the soil body, the volume of liquid will not increase, but liquid proportion meeting
Increase；When these salt can not fully dissolve in the water of the soil body, it is impossible to which the salinity of dissolving is present in the form of crystalline solid
Between soil particle, skeleton function is played jointly with soil particle.These lyotropic salts mainly have sodium sulphate, magnesium sulfate, sodium chloride, sodium carbonate
Deng wherein temperature influences maximum to the solubility of sodium sulphate.Sodium sulphate is readily soluble also known as thenardite, reacts special to temperature change
It is insensitive.When temperature is 32.4 DEG C, the solubility of sodium sulphate reaches peak value, can reach 40.8g, temperature thus rise or under
Drop, solubility will all be reduced；When temperature is 0 DEG C, the solubility of sodium sulphate is only 4.9g.In seasonal temperature change salt greatly
Stain soil area, during winter, the temperature of roadbed is reduced with natural temperature, and the sodium sulphate in subgrade soils is influenceed by temperature reduction
Absorb 10 hydrones and become saltcake crystal, the volume of saltcake crystal is 3.1 times of thenardite, and crystal promotes grogs, causes
The increase of subgrade soil volume, forming salt is swollen；During spring and summer, subgrade soil temperature is gradually increasing, and the sodium sulphate between grogs is again heavy
New soluble in water, the hole increase density in the soil body diminishes, and in the presence of traffic load, produces the inhomogeneous deformation of roadbed,
Road surface wave, bulge, crack etc..Rainwater can infiltrate roadbed by the crack on road surface, and undissolved crystal salt is complete in subgrade soil
Portion is dissolved, and the structure of the soil body is further destroyed, intensity decreases, and especially in the presence of traffic load, soil particle is again
Arrangement, hole reduces, and produces molten falling into.Season alternation Frozen-thawed cycled effect under, it is molten it is sunken can gradually increase, the operation energy of road
Power is by serious reduction.The solubility of villaumite is very high, but its solubility is influenceed very little by temperature change；Villaumite has obvious suction
Moist, the moisture of moisture absorption is difficult evaporation, volume when separating out is crystallized from solution and is not changed significantly.When villaumite crystallization is present in soil
When in body, the shearing strength of the soil body increases with the increase of salt content, and the compressed coefficient increases and reduces with salt content.By sodium chloride
It is incorporated into sulfate-salinized soil, because sodium chloride is to the common-ion effect of sodium sulphate, the solubility of sodium sulphate can be reduced, so as to tie
The reduction of partial crystallization output；Meanwhile, the addition of sodium chloride can reduce the temperature of nitre awns and anhydrous nitre awns transition point, and this is to sulfate
The swollen characteristic of salt of stain soil is respectively provided with inhibitory action.But the incorporation of sodium chloride is excessive, do not suppress that salt is swollen not only, salt is swollen to be had on the contrary
Increased：The addition of sodium chloride reduces the freezing point of water, and native reclaimed water turns into temperature-fall period and do not freeze water, and this is the swollen generation of salt
There is provided water source, and under conditions of subzero temperature, excess chlorination sodium can absorb two another hydrone synthesis cryosels, aggravate the swollen of the soil body
It is swollen.The solubility of sodium chloride is high and not temperature influence, and this causes that after a large amount of sodium chloride are mixed roadbed once runs into rainwater and enters
Ooze, the molten sunken amount of roadbed will be aggravated.It would therefore be desirable to study the swollen characteristic of salt of salinized soil after incorporation sodium chloride, suppress salt
The sodium chloride content boundary value that stain earth salt is swollen, weighing factor and chlorine that sodium chloride, moisture content, compactness, additional load are swollen to salt
Change sodium to mixing the influence of the molten sunken characteristic of salinized soil of sodium chloride.In the past, the swollen characteristic of salt of research salinized soil mainly relied on height
Temperature test box is completed, but high-low temperature test chamber also has many drawbacks：1. for the swollen experiment of the salt of coarse grain salinized soil, in order to avoid
The dimensional effect of grain, the experiment of making is general than larger, and high-low temperature test chamber cabinet space is small, and the volume of sample and loading are big
It is small to be restricted, it is impossible to meet the demand of experiment condition；2. the dial gauge or displacement transducer for measuring salt bulk are placed in high/low temperature
In test box body, when cooling to up to uniform temperature reading, it is necessary to open casees reading, in the effect that hot and cold air is exchanged
Under, the pointer of dial gauge is unstable, causes read untrue.Chamber door reading is opened, case body temperature is influenceed, temperature wave is caused
It is dynamic.3. when high-low temperature test chamber works, noise is than larger；Secondary refrigerant leakage contaminated air；It is expensive and maintenance cost is very high.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of experimental rig, provide a kind of reasonable in design, structure
Simply, confined space is big, convenient reading and test data is accurate, with low cost, energy-conserving and environment-protective test salt marsh earth salt bulks
Sealed refrigeration heater.
Solving the technical scheme of above-mentioned technical problem use is：Including casing, spiral is provided with described box bottom
Connected in star, described spiral groove edge is provided with fin, and liquid circulating pipe is provided with described spiral groove, described
Liquid circulating pipe one end be connected with the liquid outlet of low temperature thermostat bath through wall box, the other end is along wall box helical disk
It is connected with the inlet of low temperature thermostat bath around and through wall box, the liquid circulating pipe of described wall box coiling passes through
Fixed plate is fixed on wall box, and at least one sample case is placed with described fin, and described sample box top is set
There is closing steel plate, described sample case sample is embedded with the probe being connected with digital display sensor, examination in described sample case
Sample top is placed with through the displacement and force transfering device closed steel plate and top cover and be connected with dial gauge, with gas tube
Annular rubber ring, is provided with foil gauge between described displacement and force transfering device and annular rubber ring, described foil gauge leads to
Cross wire to be connected with external computer, described casing top is provided with top cover, and it is recessed that described top cover inwall is provided with spirality
Groove, be provided with described spiral groove one end be connected with low temperature thermostat bath liquid outlet through top cover, the other end through top
The liquid circulating pipe that lid is connected with the inlet of low temperature thermostat bath, described casing and top cover outer wall is provided with heat-insulation layer.
Some concentric ring recesses are provided with box bottom of the invention, one is additionally provided with described box bottom
The radial groove that center line overlaps with base plate diameter, described liquid circulating pipe is first placed in top half bottom along annular groove disk
Plate, in the soleplate heart position liquid circulating pipe be bent upwards into U-shape structure, liquid circulating pipe is placed in lower half along annular groove disk again
Part backplane.
Displacement of the invention and force transfering device are fixed on extension bar in circular steel plate, described circular steel plate including one end
On be provided with air-vent, the free end of described extension bar is machined with the external screw thread adaptable with the measuring staff internal thread of dial gauge.
Cover plate is provided with box bottom fin of the invention, sample case is positioned on cover plate, and described cover plate is uniform
It is machined with the annular slab of air-vent；Described top cover is internally provided with supporting plate, and described supporting plate is ventilative to be uniformly machined with
The annular slab in hole.
Cover plate of the invention, supporting plate are made by aluminum material.
Liquid circulating pipe of the invention is copper pipe.
Compression pump is provided with low temperature thermostat bath liquid outlet of the invention.
The height of the coiling height higher than sample case of the liquid circulating pipe along wall box coiled coil of the invention.
Height of the height of the liquid circulating pipe for bending to U-shape structure of the invention higher than sample case.
Beneficial effects of the present invention are as follows：
1st, using displacement and force transfering device by dial gauge as casing outside, reading can be facilitated, it is to avoid unstable air-flow
Influence dial gauge stabilization causes read untrue, while avoiding the dial gauge in temperature-fall period from being frozen in causes test failure.
2nd, digital display sensor probe line can pass casing by the hole of top cover, directly the test sample soil body can lower the temperature
Temperature, moisture content and strain value in journey etc..
3rd, test salt bulk while can test salt marsh earth salt it is swollen when expansive force.
4th, the volume of experiment casing is big, can meet coarse grain salinized soil and avoid Particle size effect and design large dimension specimen
Requirement, while the space requirement of loading can be met, during experiment, several samples can be put more, parallel test and right can be increased
Compare sample.
5th, cooling realizes that anti-icing fluid repeats utilization and volatilization is not polluted by the temperature of low temperature thermostat bath reduction anti-icing fluid
Air, economy, safety and environmental protection.
6th, low cost.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of displacement and force transfering device 17 in Fig. 1.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the structural representation of the base plate of casing 7 in another embodiment of the present invention.
Fig. 5 is the structural representation of Fig. 1 cover plates 8.
In figure：1st, low temperature thermostat bath；2nd, computer；3rd, dial gauge；4th, digital display sensor；5th, top cover；6th, supporting plate；7th, case
Body；8th, cover plate；9th, liquid circulating pipe；10th, sample case；11st, pop one's head in；12nd, foil gauge；13rd, annular rubber ring；14th, fixed plate；
15th, heat-insulation layer；16th, steel plate is closed；17th, displacement and force transfering device；18th, compression pump；A, annular groove；B, radial groove；17-
1st, circular steel plate；17-2, extension bar.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and examples, but is implemented the invention is not restricted to these
Example.
Embodiment 1
In Fig. 1,2,3,4,5, a kind of sealed refrigeration heater for testing salt marsh earth salt bulk of the present invention, including casing
7, spiral groove is machined with the base plate of casing 7, spiral groove edge is machined with fin, and spiral groove inner disc is equipped with liquid
Circulation pipe 9, the one end of liquid circulating pipe 9 is connected through the side wall of casing 7 with the liquid outlet of low temperature thermostat bath 1, the other end is along casing 7
Side wall coiled coil and it is connected with the inlet of low temperature thermostat bath 1 through the side wall of casing 7, the liquid circulating pipe 9 of the present embodiment
It is copper pipe, transmission heat works well, the flowing in liquid circulating pipe 9 of the freezing liquid in low temperature thermostat bath 1, inside casing 7
Lowered the temperature or heated up, while realize recycling for freezing liquid, save resources, avoid wasting, in order that freezing liquid has enough
Pressure, can quickly circulate, compression pump 18 is installed on the pipeline at the liquid outlet of cryostat 1.Casing 7
The liquid circulating pipe 9 of side wall coiling is fixed on the side wall of casing 7 with screw threads for fastening connector by fixed plate 14, in order to ensure drop
Temperature or temperature rise effect, along the height of the coiling height higher than sample case 10 of the liquid circulating pipe 9 of wall box coiled coil.Casing
At least one sample case 10 is placed with the fin of 7 base plates, the quantity of sample case 10 needs specific determination, chamber according to experiment
10 are positioned on fin and avoid being contacted with liquid circulating pipe 9 compressing liquid circulating pipe 9, so as to influence the flowing of freezing liquid, enter one
Step ground, in order to ensure the not contact liq circulation pipe 9 of sample case 10, can install cover plate 8 on fin, cover plate 8 be machined with it is ventilative
The annular slab in hole, cover plate 8 is fabricated to by aluminum material, and heat transfer works well, the air-vent processed thereon more conducively heat
Transmission, the top of sample case 10 is provided with closing steel plate 16, and the sample of sample case 10 is embedded with the spy being connected with digital display sensor 4
First 11, digital display sensor 4 is placed in outside casing 7, can direct temperature, moisture content of the test sample soil body in temperature-fall period
Deng sample top is placed with and is passed through closing steel plate 16 and top cover 5 and the displacement that is connected with dial gauge 3 and power in sample case 10
Delivery device 17, the annular rubber ring 13 with gas tube, are filled by stretching out casing external inflation pipe to annular rubber ring 13
Gas, described displacement and force transfering device 17 include circular steel plate 17-1 and the extension bar being connected as a single entity with circular steel plate 17-1
17-2, air-vent is machined with circular steel plate 17-1, and the air-vent can prevent space of the water vapour between steel plate and sample from tying
Ice, the free end of extension bar 17-2 is machined with the external screw thread being adapted with the internal thread on the measuring staff of dial gauge 3, and dial gauge 3 is installed
On extension bar 17-2.Foil gauge 12 is provided between displacement and force transfering device 17 and annular rubber ring 13, foil gauge 12 leads to
Cross wire to be connected with external computer 2, the data of 2 pairs of transmission of computer are shown and processed that foil gauge 12 is whole to be attached to annular rubber
The bottom of cushion rubber 13, will be full of gas in annular rubber ring 13, and closing steel plate 16 is fixed and is pushed up in sample case 10 in temperature-fall period
Portion, has salinized soil in sample case 10 that the swollen phenomenon of salt occurs in temperature-fall period, jack-up circular steel plate 17-1 is swelled on soil body top layer, now
Dial gauge 3 is rotated and is salt bulk, and the annular elastic tape 13 of circular steel plate 17-1 extruding deforms, and foil gauge 12 also becomes
Shape, the dependent variable of annular elastic tape 13 be salt marsh earth salt it is swollen when dependent variable, converted by the elastic modelling quantity of the soil body
Can obtain salt marsh earth salt it is swollen when expansive force.It is fixedly connected in the top screw threads for fastening connector of casing 7 and top cover is installed
8, the inwall of top cover 8 is machined with spiral groove, and spiral groove inner disc is equipped with one end and goes out liquid through top cover 8 and low temperature thermostat bath 1
The liquid circulating pipe 9 that mouth is connected, the other end is connected through top cover 8 with the inlet of low temperature thermostat bath 1, by liquid circulation
The freezing liquid of the internal circulation flow of pipe 9 is lowered the temperature or is heated up to casing internal upper part, is fixed with screw threads for fastening connector inside top cover 8
Supporting plate 6 is connected and installed with, supporting plate 6 is the annular slab for being machined with air-vent, and supporting plate 6 prevents the liquid that the inner disc of top cover 8 is put
Circulation pipe 9 is come off, and supporting plate 6 is fabricated to by aluminum material, and heat transfer works well, and the air-vent processed thereon is more conducive to heat
Amount transmission, casing 7 and 8 cover outer walls of top are enclosed with heat-insulation layer 15, prevent heat exchange inside and outside casing 7, temperature from transmitting.
Embodiment 2
In embodiment 1, some concentric ring recesses a are provided with the base plate of casing 7 of the present embodiment, on the base plate of casing 7
The radial groove b that a center line overlaps with base plate diameter is additionally provided with, liquid circulating pipe 9 is first placed in along annular groove a disks
Half part base plate, in the soleplate heart position liquid circulating pipe be bent upwards into U-shape structure, liquid circulating pipe is again along annular groove disk
A is placed in the latter half base plate, in order to ensure the effect lowered the temperature or heat up, the described liquid circulating pipe 9 for bending to U-shape structure
Height of the height higher than sample case 10, the annexation between remaining each parts and each parts is complete with embodiment 1
It is identical.
Using the device of the embodiment of the present invention 1,2 test the experiment of salinized soil expansive force, the single cooling swollen experiment of salt
Step is as follows：
The surrounding of casing 7 is laid into insulation material, prevents box house from carrying out heat exchange with surrounding air, will set what level was matched somebody with somebody
Soil sample, according to certain salt content, moisture content mixing, shelving 24h hits during actual load enters sample case 10 the good soil sample layering of mixing
Certain altitude, striking times are according to compactness and hit real thickness to determine, the sample case 10 that will be equipped with salinized soil is put into casing 7
In, displacement and force transfering device 17 are placed on soil sample surface, foil gauge is put down into the 12 whole bottoms for being attached to annular rubber circle 13, by annular
Elastic tape 13 is placed on circular steel plate 17-1 through the extension bar 17-2 of displacement and force transfering device 17, and closing steel plate 16 is put
Put at the top of sample case 10, the gas tube of the wire of foil gauge 12 and annular rubber ball is worn from the hole beaten on closing steel plate 16
Go out, the closing screw threads for fastening connector of steel plate 16 is fixed on the top of sample case 10, be in close contact it.By the top cover 5 of casing 7
Cover, insulation material covered into top cover 5, at the same by extension bar 17-2, the wire of foil gauge 12, annular elastic tape 13 gas tube
Pass top cover 5 and heat-insulation layer 15.Foil gauge wire is connected into computer 2, probe 11 is connected by wire with digital display sensor 4
Connect, inflated to annular rubber ring 13, stop sealing up gas tube immediately when computer 2 shows strain value, dial gauge 3 is installed
On extension bar 17-2, the liquid outlet of low temperature thermostat bath 1 and inlet are coupled together with liquid circulating pipe 9 with rubber hose, root
Compression pump 18 can be arranged in the rubber hose of the liquid outlet of low temperature thermostat bath 1 according to liquid mobility status, it is ensured that be completely embedded
Low temperature thermostat bath 1 being opened afterwards, changing the control temperature of low temperature thermostat bath 1, we can measure each temperature-fall period and final
The strain value of the soil body, carrying out conversion by the elastic modelling quantity of the soil body can obtain the expansive force of salinized soil.
Operation principle of the invention is as follows：
Anti-icing fluid is added in low temperature thermostat bath 1, opening low temperature thermostat bath 1 makes anti-icing fluid lower the temperature, anti-icing fluid is from cryogenic thermostat
The liquid outlet of groove 1 is circulated to lowering the temperature inside casing 7 into liquid circulating pipe 9, finally from the feed liquor of low temperature thermostat bath 1
Mouth returns to low temperature thermostat bath 1, realizes recycling for freezing liquid, save resources.The temperature of anti-icing fluid is controlled by low temperature thermostat bath 1
Spend to adjust the temperature in casing 7, in order that freezing liquid has enough pressure, can quickly circulate, in cryogenic thermostat
Compression pump 18 can be installed on the pipeline at the liquid outlet of case 1.
Claims (9)
1. a kind of sealed refrigeration heater for testing salt marsh earth salt bulk, including casing, it is characterised in that：Described casing bottom
Spiral groove is provided with plate, described spiral groove edge is provided with fin, is provided with described spiral groove
Liquid circulating pipe, described liquid circulating pipe one end is connected through wall box with the liquid outlet of low temperature thermostat bath, the other end
It is connected with the inlet of low temperature thermostat bath along wall box coiled coil and through wall box, described wall box coiling
Liquid circulating pipe be fixed on wall box by fixed plate, at least one sample case is placed with described fin, it is described
Sample box top be provided with closing steel plate, described sample case sample is embedded with the probe being connected with digital display sensor,
Sample top is placed with through the displacement and power transmission closed steel plate and top cover and be connected with dial gauge in described sample case
Device, the annular rubber ring with gas tube, are provided with strain between described displacement and force transfering device and annular rubber ring
Piece, described foil gauge is connected by wire with external computer, and described casing top is provided with top cover, in described top cover
Wall is provided with spiral groove, one end is provided with described spiral groove and is connected with low temperature thermostat bath liquid outlet through top cover
The liquid circulating pipe that the logical, other end is connected through top cover with the inlet of low temperature thermostat bath, described casing and top cover outer wall
It is provided with heat-insulation layer.
2. it is according to claim 1 it is a kind of test salt marsh earth salt bulk sealed refrigeration heater, it is characterised in that：Institute
Some concentric ring recesses are provided with the box bottom stated, a center line and base plate are additionally provided with described box bottom
The radial groove that diameter overlaps, described liquid circulating pipe is first placed in top half base plate along annular groove disk, in the soleplate the heart
Position liquid circulating pipe is bent upwards into U-shape structure, and liquid circulating pipe is placed in the latter half base plate along annular groove disk again.
3. a kind of sealed refrigeration heater for testing salt marsh earth salt bulk according to claim 1 and 2, its feature exists
In：Described displacement and force transfering device is fixed on extension bar in circular steel plate including one end, is set in described circular steel plate
The free end for having air-vent, described extension bar is machined with the external screw thread adaptable with the measuring staff internal thread of dial gauge.
4. a kind of sealed refrigeration heater for testing salt marsh earth salt bulk according to claim 1 and 2, its feature exists
In：Cover plate is provided with described box bottom fin, sample case is positioned on cover plate, described cover plate is uniformly to be machined with
The annular slab of stomata；Described top cover is internally provided with supporting plate, and described supporting plate is the annular for being uniformly machined with air-vent
Plate.
5. it is according to claim 4 it is a kind of test salt marsh earth salt bulk sealed refrigeration heater, it is characterised in that：Institute
Cover plate, the supporting plate stated are by aluminum material making.
6. a kind of sealed refrigeration heater for testing salt marsh earth salt bulk according to claim 1 and 2, its feature exists
In：Described liquid circulating pipe is copper pipe.
7. a kind of sealed refrigeration heater for testing salt marsh earth salt bulk according to claim 1 and 2, its feature exists
In：Compression pump is provided with described low temperature thermostat bath liquid outlet.
8. a kind of sealed refrigeration heater for testing salt marsh earth salt bulk according to claim 1 and 2, its feature exists
In：The height of the coiling height higher than sample case of the described liquid circulating pipe along wall box coiled coil.
9. it is according to claim 2 it is a kind of test salt marsh earth salt bulk sealed refrigeration heater, it is characterised in that：Institute
That states bends to the height of the height higher than sample case of the liquid circulating pipe of U-shape structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257294.XA CN106932558B (en) | 2017-04-19 | 2017-04-19 | Closed refrigerating and heating device for testing salt expansion amount of salinized soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257294.XA CN106932558B (en) | 2017-04-19 | 2017-04-19 | Closed refrigerating and heating device for testing salt expansion amount of salinized soil |
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| CN106932558B CN106932558B (en) | 2023-02-24 |
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| CN107632139A (en) * | 2017-10-17 | 2018-01-26 | 中交第公路勘察设计研究院有限公司 | Consider each salt marsh earth salt expansive force test device and usage to confined pressure |
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| CN109086512A (en) * | 2018-07-24 | 2018-12-25 | 中铁二院工程集团有限责任公司 | A kind of measuring method of the molten sunken amount in salinized soil cutting bedding bottom |
| CN109086511A (en) * | 2018-07-24 | 2018-12-25 | 中铁二院工程集团有限责任公司 | A kind of Coarse Saline embankment structure design method based on protuberance Deformation control |
| CN109086511B (en) * | 2018-07-24 | 2022-03-25 | 中铁二院工程集团有限责任公司 | Coarse-grained saline soil embankment structure design method based on uplift deformation control |
| CN109086512B (en) * | 2018-07-24 | 2022-07-29 | 中铁二院工程集团有限责任公司 | Method for measuring and calculating bottom settlement of salinized soil road cut foundation bed |
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| CN106932558B (en) | 2023-02-24 |
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