CN106706495A - Assembled saline soil-containing percolation test system and method thereof - Google Patents
Assembled saline soil-containing percolation test system and method thereof Download PDFInfo
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- CN106706495A CN106706495A CN201611232049.5A CN201611232049A CN106706495A CN 106706495 A CN106706495 A CN 106706495A CN 201611232049 A CN201611232049 A CN 201611232049A CN 106706495 A CN106706495 A CN 106706495A
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- 238000005325 percolation Methods 0.000 title claims abstract description 62
- 239000002689 soil Substances 0.000 title claims abstract description 61
- 238000012360 testing method Methods 0.000 title claims abstract description 50
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000011780 sodium chloride Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000012806 monitoring device Methods 0.000 claims abstract description 58
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000002474 experimental method Methods 0.000 claims description 17
- 238000011026 diafiltration Methods 0.000 claims description 16
- 239000004576 sand Substances 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000012372 quality testing Methods 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 17
- 238000010612 desalination reaction Methods 0.000 description 9
- 239000000523 sample Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000002535 lyotropic effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
Classifications
-
- 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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an assembled saline soil-containing percolation test system and method thereof and relates to the technical field of soil salinization and monitoring and treatment thereof. The system comprises a water pressure flow device, a water quality monitoring device and a percolation monitoring device, wherein the water quality monitoring device comprises an inflow quality monitoring device and an effluent quality monitoring device; and the position and connection relation is that the water pressure flow device, the inflow quality monitoring device, the percolation monitoring device and the effluent quality monitoring device are sequentially connected with one another. The system disclosed by the invention has obvious effectiveness and convenience on various links such as inflow pressure control, flow monitoring, inflow quality testing, water quality monitoring in the soil sample percolation process, effluent quality monitoring, sample removal after testing and the like; and moreover, various components in the whole set of the system are independently detached, assembled and replaced, and the system is simple in structure, convenient to carry, durable in use, obvious in economic benefits and easy to popularize.
Description
Technical field
The present invention relates to the soil salinization and its inspective regulation technical field, more particularly to a kind of diafiltration of assembled Saline Soils
Pilot system and its method.
Technical background
Salinized soil（Saline-alkali soil）Refer to containing salinities such as potassium, sodium, calcium, the chloride of magnesium, sulfate and heavy carbonate, and contain
Gypsum, saltcake and rock salt（Sulfate or chloride）Deng the soil of lyotropic salt.The mainly seawater of coastal Saline Soils is immersed in
In littoral area, interior basin or depression, lyotropic salt takes to lower and causes lyotropic salt level of ground water to rise with current by eminence, warp
Capillarity and evaporation are crossed, salinity remains, condenses and formed.Saline Soils have molten sunken property, salt expandability and corrosivity, to work
Journey brings many harm and huge economic loss.Because the increase of soil salt increases soil liquid concentration, cause infiltration
Pressure is improved constantly, and the ability that plant absorbs moisture from soil reduces and shows as water shortage.If the osmotic pressure of the soil liquid is big
In osmotic pressure in plant cell, plant cannot absorb the moisture in soil, " physiological drought " occur and dead.Thus no matter from
Engineering aspect, or in terms of plant growth, carry out soil filtration desalination or adsorption test for salination evaluation and salinized soil
Inspective regulation has important meaning.A kind of assembled Saline Soils percolation test system and method are proposed out, by dress
The desalination processes of Saline Soils are analyzed with the percolation test of formula Saline Soils, desalination mechanism is disclosed, to environmental appraisal and saliferous soil sand
Inspective regulation aspect has broad application prospects.
The content of the invention
It is an object of the invention to convenient interior development Saline Soils diafiltration desalination or soil（Sand）Base adsorption is tested and theory
Analysis, for soil salinization evaluation, salinized soil improvement and desalting technology provide easily quantitative test, there is provided a kind of assembled contains
Solonchak percolation test system and method, so as to quantitatively disclose Saline Soils（Sand）Diafiltration desalination processes or soil（Sand）Absorption alkali from
Son causes saliferous process, and complete undisturbed sample can be obtained after experiment is finished for the microcosmic and thin sight mechanism point in laboratory
Analysis.Each part independence disassembling, assembling and replacing of the system, simple structure is durable in use, remarkable in economical benefits, it is easy to promote.
The object of the present invention is achieved like this：
First, assembled Saline Soils percolation test system（Abbreviation system）
Including hydraulic pressure flow apparatus, Inlet and outlet water water monitoring device and diafiltration monitoring device；Inlet and outlet water water monitoring device includes
Influent quality monitoring device and effluent quality monitoring device；
Its position and annexation are：
Hydraulic pressure flow apparatus, influent quality monitoring device, diafiltration monitoring device and effluent quality monitoring device are sequentially connected.
The operation principle of the system：
The system is by the fine diafiltration desalination experiment and salinity suction for determining Inlet and outlet water water quality and process of the test soil body electrical conductivity
Saline Soils desalination processes or soil sand salinity adsorption process are analyzed in adhesion test；Mainly contained with the pure water penetration tested by electrical conductivity
The soil sand that the solution infiltration of solonchak or certain salt content is cleaned, quantitatively obtains the change of the soil body and diffusate salinity in process of the test
Change, evaluate the diafiltration desalination processes or soil sand salinity adsorption process of Saline Soils；The front and rear soil sample of assembled percolating device experiment is just
Soil sample supplies later stage mesoscale experiments and Analysis on Mechanism after victory handling are easy to obtain the small experiment of disturbance.
2nd, assembled Saline Soils percolation test method（Abbreviation method）
This method comprises the following steps：
1. filled by the soil sand of experimental determination initial salt content in diafiltration by estimated packing packet before on-test
In device, each percolation filter presses identical packing as needed, it is also possible to different；Even can be according to different gradation and packing
Fill respectively；
2. rounded porous plate is placed in the middle of each section of percolation filter for filling sample, passes sequentially through flange plate bolt and connect into one
It is overall；
3. filter material is loaded in capping before anti-filter（Usually standard quartz sand）, ring flange side is then covered before anti-filter and is put
Rounded porous plate is put, is connected with percolation filter by flange plate bolt；Same method installs anti-filter rear seal-cover additional in the other end；
4. water monitoring device is assembled：To be enclosed within outside sealing-plug on water quality monitoring sensor, then overall filling in imports and exports water pipe
Openend makes ferrule, it is ensured that the test position alignment intake-outlet of water quality monitoring sensor；By plastic cement water pipe be connected into
Export the intake-outlet of water pipe；
5. water inlet pipe, hydrostate and digital flowmeter have been sequentially connected, and have been connected with the influent quality monitoring device for assembling
Connect, then be connected with the water inlet covered before anti-filter；The effluent quality monitoring device for connecting the delivery port of rear seal-cover and assembling；
6. automatic conductivity meter or domain reflectometer TDR are installed on percolation filter；
7. intake pressure adjusting means is opened, Control experiment flow and pressure carry out Saline Soils（Sand）Percolation test, monitoring test
During water inlet, the conductivity sensor or the reading of domain reflectometer TDR of water outlet and percolation filter；
8. after the completion of testing, percolation filter is dismantled one by one, choose the soil after often section experiment（Sand）Sample for later stage salt content test with
And microscopical structure electron-microscope scanning.
The present invention has following advantages and good effect：
1. hydraulic pressure flow apparatus are commercially available accessory, are dismounted easy and easy to maintain；
2. the moulding of Inlet and outlet water water monitoring device is unique and is easily assembled to, and also allows for disassembling, assembling and replacing sensor, chooses to install different type
Sensor carry out targetedly water soluble ion real-time monitoring；
3. covered before anti-filter and both provide intake tunnel, be again anti-filter material container；The ring flange of seamless connection is easy to and percolation filter
Connection and dismounting；
4. percolation filter moulding is simply attractive in appearance, is both the seepage channel of percolation test, is also salinity change in experiment soil sand process of the test
The checkout area of change；Tube wall can be arranged as required to different test sensor mounting hole positions, meet the different testing requirements of experiment；Two
End flanges disk is easy to the installing/dismounting of experiment, is sampled after also allowing for Sectional Test, observation and experiment.
In a word, the present invention intake pressure control, flow monitoring, influent quality test, the water quality monitoring of soil sample infiltration process,
Effluent quality is monitored and dismantled after testing has significant validity and convenience in each links such as sampling, can accurately be contained
The salinity of solonchak process of osmosis is leached or clean soil sand is to the adsorption capacity of salinity, is had to salinized soil evaluation and desalination improving technology
There is important meaning；Percolation filter based on piecewise combination is sampled after being easy to Sectional Test, observation and experiment, the set percolation test
System and method also have very strong practical value for disclosing Soil desalting laws and mechanism；Easy-to-mount test sensor combinations
The ion measurement of different requirements can be met, use scope of the invention has greatly been expanded；Each part of whole system is independently torn open
Unload assembling to change, simple structure is easy to carry, durable in use, remarkable in economical benefits, it is easy to promote.
Brief description of the drawings
Fig. 1 .1 are the block diagrams of the system,
Fig. 1 .2 are the structural representations of the system；
Fig. 2 .1 are the structural representations of water monitoring device 20,
Fig. 2 .2 are the explosive views of water monitoring device 20；
Fig. 3 .1 are the structural representations of preceding capping 31,
Fig. 3 .2 are the structural representations of preceding rounded porous plate 32,
Fig. 3 .3 are the structural representations of percolation filter 33.
In figure：
00-support；
10-intake pressure flow apparatus,
11-water inlet pipe,
12-intake pressure adjuster,
13-digital flowmeter；
20-water monitoring device,
21-influent quality monitoring device,
211-water pipe is imported and exported,
212-sealing-plug,
213-water quality monitoring sensor；
22-effluent quality monitoring device；
30-diafiltration monitoring device,
Covered before 31-anti-filter,
32-preceding rounded porous plate,
33-percolation filter,
331-the 1 percolation filter, the 332-the 2 percolation filter ... ... 33N-the N percolation filters,
N is natural number, 1≤N≤10；
A-mounting interface；
34-rear rounded porous plate,
35-anti-filter rear seal-cover,
36-automatic conductivity meter.
Specific embodiment
Describe in detail with reference to the accompanying drawings and examples：
First, system
1st, it is overall
Such as Fig. 1 .1, Fig. 1 .2, the system is including hydraulic pressure flow apparatus 10, water monitoring device 20 and is percolated monitoring device 30；Water
Matter monitoring device 20 includes influent quality monitoring device 21 and effluent quality monitoring device 22；
Its position and annexation are：
Hydraulic pressure flow apparatus 10, influent quality monitoring device 21, diafiltration monitoring device 30 and effluent quality monitoring device 22 are successively
Connection.
2nd, functional device
1）Hydraulic pressure flow apparatus 10
Such as Fig. 1 .1,1.2, hydraulic pressure flow apparatus 10 include the water inlet pipe 11, hydrostate 12 and the digital flowmeter that are sequentially connected
13；
（1）Water inlet pipe 11
Water inlet pipe 11 is commercially available rubber water pipe, is general part；
（2）Hydrostate 12
Hydrostate 12 is pressure-reducing valve or vernier control valve, general part；
（3）Digital flowmeter 13
Digital flowmeter 13 is the commercially available instrument for being used to monitor flow.
2）Water monitoring device 20
Such as Fig. 1 .1, water monitoring device 20 includes structure identical influent quality monitoring device 21 and effluent quality monitoring device
22, it is being arranged on the water inlet end of the system and water side respectively.
Such as Fig. 2 .1, Fig. 2 .2, influent quality monitoring device 21 is by import and export water pipe 211, sealing-plug 212 and water quality monitoring biography
Sensor 213 is constituted；Its position and annexation are：Import and export the import and export connection turnover plastic cement water pipe of water pipe 211, water quality monitoring
The overall openend for filling in import and export water pipe 211 makes ferrule again after the overcoat sealing-plug 212 of sensor 213.
（1）Import and export water pipe 211
Such as Fig. 2 .1, Fig. 2 .2, it is that a kind of upper end open lower end closed, tube wall are respectively arranged with Inlet and outlet water to import and export water pipe 211
The structure of mouth, the test position alignment intake-outlet of water quality monitoring sensor 213 during installation, its openend is convenient to place water quality prison
Sensing 213 is surveyed, tube wall intake-outlet is the passage for testing current.
（2）Sealing-plug 212
Such as Fig. 2 .1, Fig. 2 .2, sealing-plug 212 is circular hollow structure, for being enclosed within water quality monitoring sensor 213 and preventing outward
Test process water body seepage.
（3）Water quality monitoring sensor 213
Water quality monitoring sensor 213 is a kind of columned test sensor, commercially available general part.
3）Diafiltration monitoring device 30
Such as Fig. 1 .1, Fig. 1 .2, Fig. 3 .1~Fig. 3 .3, diafiltration monitoring device 30 is by capping 31, preceding circle before the anti-filter that is sequentially connected
Porous plate 32, percolation filter 33, rear rounded porous plate 34, anti-filter rear seal-cover 35 and automatic conductivity meter 36 are constituted；Automatic electrical conductivity
Meter 36 is arranged on percolation filter 33.
（1）31 and anti-filter rear seal-cover 35 are covered before anti-filter
Such as Fig. 3 .1, capping 31 is identical with the structure of anti-filter rear seal-cover 35 before anti-filter, is a kind of with intake-outlet and ring flange half
Spherical member.
The water inlet of capping 31 is used to access infiltration current before anti-filter, and the delivery port of anti-filter rear seal-cover 35 connects outflow water, method
Blue dribbling fixing bolt position can closely be connected with percolation filter 33.
（2）Rounded porous plate 32
If Fig. 3 .3, rounded porous plate 32 are uniform some small sircle holes in the middle of one kind, outer shroud has the circular slab of fixing bolt position；
It is used to block the filter material covered in 31 before anti-filter during permeability test to the movement of soil sand direction.
（3）Percolation filter 33
Such as Fig. 3 .3, percolation filter 33 include the 1st percolation filter 331, the 2nd percolation filter 332 ... N percolation filters 33N；Each percolation filter
33 is a kind of socket of the seamless clamp flange disk in two ends, and the mounting interface A of automatic conductivity meter 36 is provided with barrel wall, also
Domain reflectometer TDR probe apertures can be needed to increase to monitoring test soil sand water content and electrical conductivity according to experiment；
（4）Automatic conductivity meter 36
Automatic conductivity meter 36 is cylindric test sensor, commercially available general part.
3rd, the assembling of the system
1. filled by the soil sand of experimental determination initial salt content in diafiltration by estimated packing packet before on-test
In device 33, each percolation filter 33 can as needed press identical packing, it is also possible to different；Even can be according to different gradation
Filled respectively with packing；
2. filled at each section and rounded porous plate is placed in the middle of the percolation filter 33 of sample, passed sequentially through flange plate bolt and connect into one
Individual entirety；
3. filter material is loaded in capping 31 before anti-filter（Usually standard quartz sand）, ring flange side is then covered before anti-filter
Rounded porous plate 32, is connected by flange plate bolt with percolation filter 33 before placing；Same method is circular after the other end is installed additional
Porous plate 34 and anti-filter rear seal-cover 35；
4. water monitoring device is assembled：To be enclosed within water quality monitoring sensor 213 outside sealing-plug 212, then entirety fills in import and export
The openend of water pipe 211 makes ferrule, it is ensured that the test position alignment intake-outlet of water quality monitoring sensor 213；By plastic cement
Water pipe is connected to the intake-outlet for importing and exporting water pipe 211；
5. water inlet pipe 11, hydrostate 12 and digital flowmeter 13 have been sequentially connected, and have been monitored with the influent quality for assembling
Device 21 is connected, then is connected with the water inlet of capping 31 before anti-filter；The delivery port of connection anti-filter rear seal-cover 35 and going out for assembling
Water water monitoring device 22；
6. automatic conductivity meter 36 or domain reflectometer TDR are installed on percolation filter 33；
7. hydrostate 12 is opened, Control experiment flow and pressure carry out Saline Soils percolation test, enters during monitoring test
The reading of water, the conductivity sensor of water outlet and percolation filter 33 or domain reflectometer TDR；
8. after the completion of testing, the system is dismantled one by one, choose the soil sample after often section experiment and tested for later stage salt content and thin
See structure electron-microscope scanning.
Claims (5)
1. a kind of assembled Saline Soils percolation test system, it is characterised in that：
Including hydraulic pressure flow apparatus（10）, water monitoring device（20）With diafiltration monitoring device（30）；Water monitoring device（20）
Including influent quality monitoring device（21）With effluent quality monitoring device（22）；
Its position and annexation are：
Hydraulic pressure flow apparatus（10）, influent quality monitoring device（21）, diafiltration monitoring device（30）With effluent quality monitoring device
（22）It is sequentially connected.
2. the assembled Saline Soils percolation test system as described in claim 1, it is characterised in that：
Described hydraulic pressure flow apparatus（10）Including the water inlet pipe being sequentially connected（11）, hydrostate（12）And digital flowmeter
（13）.
3. the assembled Saline Soils percolation test system as described in claim 1, it is characterised in that：
Described water monitoring device（20）Including structure identical influent quality monitoring device（21）Monitored with effluent quality and filled
Put（22）, it is being arranged on the water inlet end of the system and water side respectively；
Described influent quality monitoring device（21）By import and export water pipe（211）, sealing-plug（212）With water quality monitoring sensor
（213）Composition；Import and export water pipe（211）Import and export connection turnover plastic cement water pipe, water quality monitoring sensor（213）Overcoat is sealed
Plug（212）It is overall again afterwards to fill in import and export water pipe（211）Openend make ferrule；
Described import and export water pipe（211）It is that a kind of upper end open lower end closed, tube wall are respectively arranged with the knot of intake-outlet
Structure, ensures water quality monitoring sensor during installation（213）Test position alignment intake-outlet.
4. the assembled Saline Soils percolation test system as described in claim 1, it is characterised in that：
Described diafiltration monitoring device（30）Covered by before the anti-filter that is sequentially connected（31）, preceding rounded porous plate（32）, percolation filter
（33）, rear rounded porous plate（34）With anti-filter rear seal-cover（35）Composition；Automatic conductivity meter（36）Installed in percolation filter（33）On；
Described rounded porous plate（32）It is uniform some small sircle holes in the middle of one kind, outer shroud has the circular slab of fixing bolt position；
Described percolation filter（33）Including the 1st percolation filter（331）, the 2nd percolation filter（332）... N percolation filters（33N）；Each
Percolation filter is a kind of socket of the seamless clamp flange disk in two ends, and automatic conductivity meter is provided with barrel wall（36）Installation connect
Mouth A.
5. the Saline Soils percolation test method of system described in claim 1-4 is based on, it is characterised in that：
1. will be filled in oozing by estimated packing packet by the soil or sand of experimental determination initial salt content before on-test
In filter, each percolation filter presses identical packing as needed, it is also possible to different；Even can be according to different gradation and closely knit
Degree is filled respectively；
2. rounded porous plate is placed in the middle of each section of percolation filter for filling sample, passes sequentially through flange plate bolt and connect into one
It is overall；
3. filter material is loaded in capping before anti-filter, ring flange side is then covered before anti-filter places rounded porous plate, passes through
Flange plate bolt is connected with percolation filter；Same method installs anti-filter rear seal-cover additional in the other end；
4. water monitoring device is assembled：To be enclosed within outside sealing-plug on water quality monitoring sensor, then overall filling in imports and exports water pipe
Openend makes ferrule, it is ensured that the test position alignment intake-outlet of water quality monitoring sensor；By plastic cement water pipe be connected into
Export the intake-outlet of water pipe；
5. water inlet pipe, hydrostate and digital flowmeter have been sequentially connected, and have been connected with the influent quality monitoring device for assembling
Connect, then be connected with the water inlet covered before anti-filter；The effluent quality monitoring device for connecting the delivery port of rear seal-cover and assembling；
6. automatic conductivity meter or domain reflectometer TDR are installed on percolation filter；
7. intake pressure adjusting means is opened, Control experiment flow and pressure carry out Saline Soils percolation test, monitoring test process
The conductivity sensor of middle water inlet, water outlet and percolation filter or the reading of domain reflectometer TDR；
8. after the completion of testing, percolation filter is dismantled one by one, choose the soil sample after often section experiment and tested for later stage salt content and thin
See structure electron-microscope scanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232049.5A CN106706495A (en) | 2016-12-28 | 2016-12-28 | Assembled saline soil-containing percolation test system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232049.5A CN106706495A (en) | 2016-12-28 | 2016-12-28 | Assembled saline soil-containing percolation test system and method thereof |
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| CN106706495A true CN106706495A (en) | 2017-05-24 |
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ID=58896656
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| CN201611232049.5A Pending CN106706495A (en) | 2016-12-28 | 2016-12-28 | Assembled saline soil-containing percolation test system and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459150A (en) * | 2018-05-28 | 2018-08-28 | 中国科学院武汉岩土力学研究所 | Study the indoor simulation device and its method of soil evaporation feature |
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|---|---|---|---|---|
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