CN207020049U - A kind of Dispersion Test equipment suitable for hypotonicity soil - Google Patents
A kind of Dispersion Test equipment suitable for hypotonicity soil Download PDFInfo
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- CN207020049U CN207020049U CN201721007408.7U CN201721007408U CN207020049U CN 207020049 U CN207020049 U CN 207020049U CN 201721007408 U CN201721007408 U CN 201721007408U CN 207020049 U CN207020049 U CN 207020049U
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- 239000006185 dispersion Substances 0.000 title claims abstract description 53
- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 239000002689 soil Substances 0.000 title claims abstract description 28
- 239000000700 radioactive tracer Substances 0.000 claims abstract description 62
- 238000002474 experimental method Methods 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 57
- 230000002572 peristaltic effect Effects 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000000523 sample Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 2
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 22
- 239000012153 distilled water Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 238000011049 filling Methods 0.000 description 7
- 238000013500 data storage Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a kind of Dispersion Test equipment suitable for hypotonicity soil, the Dispersion Test equipment includes hydraulic chamber and the permeameter chamber for accommodating experiment earth pillar；The hydraulic chamber connects with pressure-applying unit；The permeameter chamber is arranged on the inside of the hydraulic chamber；The permeameter chamber include instrument chamber take over a business, the flexible sidewall of instrument bottom of chamber disk and tubular, the instrument chamber is taken over a business and instrument bottom of chamber disk forms with the both ends of the flexible sidewall be tightly connected respectively；Instrument bottom of chamber disk is connected with tracer fill assembly, and the instrument chamber takes over a business to be connected with tracer and collects detection components.The utility model has the advantages that under the hydraulic pressure in hydraulic chamber acts on, experiment earth pillar is tightly wrapped up by flexible sidewall, and side wall is permeated caused by avoiding the space between experiment earth pillar and flexible sidewall；Hydraulic pressure make it that testing earth pillar maintains dense state simultaneously, not easy to break.
Description
Technical field
The utility model belongs to environmental geotechnical field, and in particular to a kind of Dispersion Test suitable for hypotonicity soil
Equipment.
Background technology
Dispersion parameter is research pollutant one of most important parameters of Transport And Transformation in soil and underground water, determines disperse
The most reliable method of degree is to carry out Dispersion Test.The research on hydrodynamic dispersion parameter mainly passes through tracer model at present,
Realized using one-dimensional sand column test, i.e., send tracer manually to read electrical conductivity with water tank or Markov bottle after filling earth pillar and survey indirectly
Determine the mode of concentration, experiment porous media is mainly coarse sand, cobble etc., and earth pillar is loaded using the manipulated soil of drying, with undisturbed soil
Larger gap be present.
For particle is small, infiltration coefficient is low soil (such as sandy silt, flour sand) according to earth pillar method, then manipulated soil institute is loaded
Take time length, and human cost is big；To there is earth pillar easy fracture, water yield in hypotonicity remodeling earth pillar small etc. under certain head pressure
Phenomenon, it is normally carried out causing more inconvenience for experiment.In addition, current indoor Dispersion Test is mostly when certain
Between be spaced water sampling, determine electrical conductivity using Portable conductivity meter, this method not only cannot be guaranteed during whole experiment
To the continuous type of monitored conductivity, and the changing value of electrical conductivity in whole experiment can not be accurately obtained, wasted simultaneously
Substantial amounts of human and material resources.Therefore measurement can be continued by needing a kind of simple efficient, company badly for hypotonicity soil disperse laboratory test research
Method of testing.
The content of the invention
The purpose of this utility model is according in place of above-mentioned the deficiencies in the prior art, there is provided one kind is applied to hypotonicity soil
Dispersion Test equipment, this Dispersion Test equipment eliminates experiment earth pillar and permeameter chamber by being pressurizeed to permeameter chamber
Between space so that experiment earth pillar can more accurately simulate one-dimensional cylinder one end and persistently inject tracer hydrodynamic dispersion
Journey.
The utility model purpose is realized and completed by following technical scheme：
A kind of Dispersion Test equipment suitable for hypotonicity soil, the Dispersion Test equipment include hydraulic chamber and are used for
Accommodate the permeameter chamber of experiment earth pillar；The hydraulic chamber connects with pressure-applying unit；The permeameter chamber is arranged on the hydraulic chamber
Inside；The permeameter chamber include instrument chamber take over a business, the flexible sidewall of instrument bottom of chamber disk and tubular, the instrument chamber is taken over a business and institute
State both ends of the instrument bottom of chamber disk respectively with the flexible sidewall and form sealed connection；Instrument bottom of chamber disk is connected with tracer injection group
Part, the instrument chamber take over a business to be connected with tracer and collect detection components.
The pressure-applying unit includes pressure water tank, pressure regulator valve and pressure-reducing valve；The pressure water tank is connected by feed pipe
The water inlet of the hydraulic chamber bottom；The pressure regulator valve and the pressure-reducing valve are sequentially arranged on the feed pipe.
Steam vent is provided with the top of the hydraulic chamber, the steam vent is provided with air vent valve.
The tracer fill assembly includes tracer agent container and peristaltic pump, and the water inlet of the peristaltic pump passes through flexibility
Pipe connects the tracer agent container, and the delivery port of the peristaltic pump connects the water inlet on the disk of the instrument bottom of chamber by water inlet pipe.
The tracer, which collects detection components, includes tracer collection vessel, flowmeter and dispersion parameter computing device；
The tracer collection vessel by outlet pipe connect the instrument chamber take over a business on delivery port, the flowmeter be arranged on it is described go out
On water pipe, the conductivity probe of the dispersion parameter computing device is arranged on inside the tracer collection vessel.
The dispersion parameter computing device also includes conductivity electrode module, signal conversion module and processor module；
The signal conversion module is connected between the conductivity electrode module and the processor module, the conductivity probe with
The conductivity electrode module connection；The processor die block gap scheduled time gathers institute by the conductivity electrode module
State the conductivity data that conductivity probe detects.
The instrument chamber is taken over a business and instrument bottom of chamber disk is provided with permeable stone close to the side of the experiment earth pillar.
The flexible sidewall is the thin mould of flexible rubber
The utility model has the advantages that (1) experiment earth pillar can be prepared quickly, the state for testing earth pillar presses close to the actual feelings in field
Condition, save the processes such as baking soil, filling, tamping；(2) under the hydraulic pressure effect in hydraulic chamber, experiment earth pillar is tight by flexible sidewall
Hard-pressed bale is wrapped up in, and side wall is permeated caused by avoiding the space between experiment earth pillar and flexible sidewall；Hydraulic pressure to test earth pillar simultaneously
Dense state is maintained, it is not easy to break；(3) reactor solution is pumped using wriggling, hydraulic pressure and flow velocity is can adjust in pumping procedure, with
Just the stabilization of hydraulic pressure and flow velocity is maintained, while test period can be shortened；(4) to the dense of the reactor solution of outflow during testing
Degree change continuously monitors, and can obtain the detection information of percolate concentration at any time.
Brief description of the drawings
Fig. 1 is the structural representation of the Dispersion Test equipment for being applied to hypotonicity soil in the utility model；
Fig. 2 is the structured flowchart of the dispersion parameter computing device in the utility model.
Embodiment
Feature of the present utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with accompanying drawing
It is bright, in order to the understanding of technical staff of the same trade：
Such as Fig. 1-2, mark 1-35 is respectively in figure：Flexible sidewall 1, permeameter chamber 2, experiment earth pillar 3, instrument chamber take over a business 4, instrument
Bottom of chamber disk 5, the first permeable flag 6, the second permeable flag 7, hydraulic chamber 8, tracer fill assembly 9, tracer collect detection group
Part 10, tracer agent container 11, peristaltic pump 12, water inlet pipe 13, tracer collection vessel 14, flowmeter 15, dispersion parameter calculate dress
Put 16, conductivity probe 17, timing module 18, conductivity electrode module 19, signal conversion module 20, processor module 21, go out
Water pipe 22, input equipment 23, data storage and output module 24, display screen 25, power module 26, pressure-applying unit 27, press water
Case 28, pressure regulator valve 29, pressure-reducing valve 30, air vent valve 31, feed pipe 32, hydraulic chamber's barrel 33, hydraulic chamber's top cover 34, hydraulic chamber bottom
Seat 35.
Embodiment：As shown in figure 1, the present embodiment is applied to the native Dispersion Test equipment of hypotonicity more particularly to a kind of,
The Dispersion Test equipment includes hydraulic chamber 8 and the permeameter chamber 2 for accommodating experiment earth pillar 3；Hydraulic chamber 8 and pressure-applying unit 27
Connection；Permeameter chamber 2 is arranged on the inside of hydraulic chamber 8；Permeameter chamber 2 includes instrument chamber and takes over a business 4, instrument bottom of chamber disk 5 and tubular
Flexible sidewall 1, instrument chamber take over a business 4 and the both ends composition sealed connection with flexible sidewall 1 respectively of instrument bottom of chamber disk 5；Instrument bottom of chamber disk 5
Tracer fill assembly 9 is connected with, instrument chamber takes over a business 4 and is connected with tracer collection detection components 10.
As shown in figure 1, in the present embodiment, flexible sidewall 1 is made up of flexible rubber film；Circle is installed on instrument bottom of chamber disk 5
Shape base, cup dolly are used to support experiment earth pillar 3；It is provided with instrument bottom of chamber disk 5 for being connected with tracer fill assembly 9
Water inlet；Take over a business the delivery port being provided with 4 for collecting the connection of detection components 10 with tracer in instrument chamber.
As shown in figure 1, tracer fill assembly 9 is used to inject distilled water to experiment earth pillar 3 from bottom to top or tracer is molten
Liquid；Tracer fill assembly 9 includes tracer agent container 11 and peristaltic pump 12, and the water inlet of peristaltic pump 12 is connected by flexible pipe
Tracer agent container 11, the delivery port of peristaltic pump 12 connect the water inlet on the instrument bottom of chamber disk 5 of permeameter chamber 2 by water inlet pipe 13.
Tracer agent container 11 is beaker in the present embodiment, and water inlet pipe 13 is glass tube；Tracer agent container 11 and peristaltic pump
12 are arranged on the outside of hydraulic chamber 8, and water inlet pipe 13 extends to the inside of hydraulic chamber 8 and the water inlet of instrument bottom of chamber disk 5 through hydraulic chamber 8
Mouth connection；Liquid in tracer agent container 11 can be delivered to experiment earth pillar 3 by peristaltic pump 12 according to predetermined flow speed stability；
Peristaltic pump 12 has a touch-screen, and the hydraulic pressure and flow velocity of peristaltic pump 12 can be adjusted by adjusting touch-screen.
As shown in figure 1, tracer, which collects detection components 10, includes tracer collection vessel 14, flowmeter 15 and disperse
Parameter calculation apparatus 16；Tracer collection vessel 14 takes over a business the water outlet on 4 by the instrument chamber of the connection permeameter of outlet pipe 22 chamber 2
Mouthful, flowmeter 15 is arranged on outlet pipe 22；In the present embodiment, tracer collects detection components 10 and is arranged on the outer of hydraulic chamber 8
Side；Flowmeter 15 can detect the flow for the liquid that outlet pipe 22 is flowed through in the unit interval, can according to the testing result of flowmeter 15
To calculate the saturation time and Darcy velocity of experiment earth pillar.
As shown in Fig. 2 dispersion parameter computing device 16 includes conductivity probe 17, timing module 18, conductivity electrode mould
Block 19, signal conversion module 20 and processor module 21；Conductivity probe 17 is arranged on inside tracer collection vessel 14, electricity
Conductance probe 17 is connected with the conductivity electrode module 19；Conductivity electrode module 19 and timing module 18 connect signal and turned
Change module 20；Signal conversion module 20 connects processor module 21；Timing module 18 converts mould by signal at predetermined time intervals
Block 20 sends trigger signal to processor module 21；After processor module 21 receives trigger signal, pass through signal conversion module
The conductivity data that 20 control conductivity electrode modules 19 detect to conductivity probe 17 samples；Signal conversion module
20 conductivity datas that can obtain the sampling of conductivity electrode module 19 are sent to processor module 21 after being amplified processing；Place
Reason device module 21 can also adjust the time-count cycle of timing module 18, to adjust the sampling time interval of conductivity data.
As shown in Fig. 2 dispersion parameter computing device 16 also includes input equipment 23, data storage and output module 24, shown
Display screen 25 and power module 26；Input equipment 23 connects processor module 21, and input equipment 23 can make keyboard or touch
Screen, user of service can adjust the time-count cycle of timing module 18 by input equipment 23, can also be defeated by input equipment 23
Enter the various calculating parameters of dispersion parameter；Data storage and output module 24 be connected to display screen 25 and processor module 21 it
Between, the information for processor module 21 to be exported is converted to vision signal and exported to display screen 25, data storage and output mould
The various data that block 24 can be exported with storage processor module 21；Power module 26 is used for into dispersion parameter computing device 16
Modules power supply.
As shown in figure 1, pressure-applying unit 27 includes pressure water tank 28, pressure regulator valve 29 and pressure-reducing valve 30 in the present embodiment；Pressure
Power water tank 28 connects the water inlet of the bottom of hydraulic chamber 8 by feed pipe；Pressure regulator valve 29 and pressure-reducing valve 30 are sequentially arranged at water supply
On pipe 32；The top of hydraulic chamber 8 is provided with steam vent, and steam vent is provided with air vent valve 31；In the present embodiment, hydraulic chamber 8 is
The good plexiglass cylinder of air-tightness；Hydraulic chamber 8 includes hydraulic chamber's barrel 33, hydraulic chamber's top cover 34, hydraulic chamber's base 35.
As shown in Figure 1, 2, using the Dispersion Test equipment detection experiment earth pillar for being applied to hypotonicity soil of the present embodiment
Dispersion parameter specifically include following steps：
1) as shown in figure 1, testing earth pillar 3 to filling inside permeameter chamber 2；Permeameter chamber 2 has the flexible sidewall of tubular
1；Permeameter chamber 2 mainly takes over a business 4 and instrument bottom of chamber disk 5 including instrument chamber；During earth pillar 3 is tested in filling, first by soil
Post sample preparation device prepares the experiment earth pillar 3 of hypotonicity soil；The first permeable flag 6, experiment are then placed on instrument bottom of chamber disk 5 successively
Earth pillar 3, the second permeable flag 7 and instrument chamber take over a business 4；The flexible sidewall 1 of tubular is then arranged in the side of experiment earth pillar 3；Point
Two O-ring seals are not set on the outside of the both ends of flexible sidewall 1 so that take over a business 4 with instrument chamber respectively in the both ends of flexible sidewall 1
And instrument bottom of chamber disk 5 is formed and is tightly connected；In the present embodiment, permeameter chamber 2 is arranged on the bottom of hydraulic chamber 8.
2) as shown in figure 1, collecting inspection in the both ends of permeameter chamber 2 connection tracer fill assembly 9 and tracer respectively
Survey component 10.
3) as shown in figure 1, hydraulic chamber 8 is connected with pressure-applying unit 27, the inside of hydraulic chamber 8 is noted using pressure-applying unit 27
Water pressurizes；Following steps are specifically included to the water filling pressurization of hydraulic chamber 8：Air vent valve 31 and pressure regulator valve 29 are opened, uses pressure
Water tank 28 is to the water filling of hydraulic chamber 8 and discharges air；When the air vent valve 31 has water spilling, close air vent valve 31 and
Pressure regulator valve 29, now the hydraulic pressure in hydraulic chamber 8 can extrude the flexible sidewall 1 of permeameter chamber 2 so that flexible sidewall 1 firmly wraps up
Firmly test earth pillar 3.
4) as shown in Figure 1, 2, while 8 inside water pressure of hydraulic chamber is kept, using tracer fill assembly 9 and show
The dispersion parameter of the detection experiment earth pillar 3 of detection components 10 is collected in track agent；The dispersion parameter of detection experiment earth pillar 3 specifically includes following
Step：
4.1) distilled water is injected to experiment earth pillar 3 using tracer fill assembly 9, so as to the gas in Efficacy earth pillar 3
Body and salinity；During distilled water is injected, distillation is loaded in the tracer agent container 11 first to tracer fill assembly 9
Water, the switch of peristaltic pump 12 is then turned on, by the touch-screen adjustment pump pressure and flow velocity of peristaltic pump, flow control is in 5ml/min
Within；Peristaltic pump 12 is by distilled water with stable flow velocity injection testing earth pillar 3, and in the presence of head difference, distilled water is from examination
The bottom for testing earth pillar 3 slowly moistens earth pillar 3 is tested, and gas and salinity in Efficacy earth pillar 3；Test in earth pillar 3
It is follow-up continuous using distilled water flushing experiment earth pillar 3 to distill water saturation；During distilled water is injected inspection is collected using tracer
Survey the electrical conductivity that component 10 detects the distilled water through experiment earth pillar 3；When the electrical conductivity of the distilled water of outflow experiment earth pillar 3 is small
In outage threshold or when not changing, show that salinity rinses and complete, stop injecting distilled water to experiment earth pillar 3；The present embodiment
Middle outage threshold is 200 μ s/cm.
During distilled water is injected to experiment earth pillar 3 using tracer fill assembly 9, collected and detected using tracer
The flow of the distilled water of the detection outflow experiment earth pillar 3 of flowmeter 15 of component 10, when the flow reading of distilled water is stable, is represented
Test the soil sample saturation of earth pillar 3, the reading Q of record now flowmeter 15, and earth pillar is tested according to flow rate calculation now
Darcy velocity υ, Darcy velocity υ calculation formula is as follows：
υ=Q/A
In formula：Q represents the water flow of unit interval, and A represents the cross-sectional area of experiment earth pillar 3.
4.2) reactor solution is injected from bottom to top using the lower end of tracer fill assembly 9 to experiment earth pillar 3, make simultaneously
Detection components 10 are collected with tracer and collect the reactor solution for the upper end outflow for testing earth pillar 3, and are spaced scheduled time repetition
Detect the conductivity data of the reactor solution flowed out from experiment earth pillar 3；Tracer collects detection components 10 according to detecting
Conductivity data calculates the concentration of reactor solution and the breakthrough curve of tracer of outflow；When the reactor solution of outflow
Electrical conductivity and the conductance of the reactor solution of injection testing earth pillar 3 approach, or the conductance of the reactor solution of outflow continues 1
Hour is stable when some numerical value no longer rises to, and stops to experiment earth pillar injection reactor solution.
As shown in figure 1, in the present embodiment, reactor solution is 5g/L sodium chloride solution；In reactor solution injection
During, the distilled water in the gradual displacement experiment earth pillar 3 of reactor solution；Reactor solution is gradually to experiment earth pillar 3 simultaneously
Top disperse, and from the top outflow of experiment earth pillar 3, collect in the tracer collection vessel 14 that tracer collects detection components 10
Inside.
As shown in Figure 1, 2, in the present embodiment, tracer is collected detection components 10 and examined by dispersion parameter computing device 16
The conductivity data of the reactor solution flowed out is surveyed from experiment earth pillar 3；Specifically, the processor of dispersion parameter computing device 16
Module 21 sampled every 5 minutes conductivity datas detected by conductivity electrode module 19 to conductivity probe 17；
The conductivity data that processor module 21 obtains according to sampling calculates the concentration of the reactor solution of outflow；Processor module 21 will
The concentration of the reactor solution calculated is aggregated into the breakthrough curve of tracer.
4.3) tracer collects breakthrough curve and experiment of the detection components 10 according to the tracer obtained in step 4.2)
Earth pillar porosity and Darcy velocity calculate the dispersion parameter of experiment earth pillar 3；In the present embodiment, detection components are collected using tracer
10 dispersion parameter computing device 16 calculates the dispersion coefficient of experiment earth pillar 3；Specific calculating process comprises the following steps：Processor
Module 21 determines the relative concentration of the reactor solution of outflow corresponding to 0.159 and 0.841 on the breakthrough curve of tracer
Time t0.159And t0.841；The hole for the calculating parameter input experiment earth pillar 3 that testing staff passes through dispersion parameter computing device 16
Porosity (porosity can carry out soil test acquisition to experiment earth pillar) and Darcy velocity υ；Processor module 21 is according to dispersion coefficient
Each dispersion parameter is calculated with spread Computing Principle and formula.
Dispersion coefficient and spread calculating process are：
In formula：DLRepresent dispersion coefficient.t0.159Corresponding time when for relative concentration on breakthrough curve being 0.159；
t0.841Corresponding time when for relative concentration on breakthrough curve being 0.841.V represents average pore flow velocity, with foregoing Darcy Flow
Fast υ relation is υ=nV, and n is porosity, and porosity is measured using core cutter method before the test.
According to the dispersion coefficient D tried to achieveL, the vertical dispersivity α in water-bearing layerLCalculated by following formula：
In formula：αLRepresent the spread, DLDispersion coefficient is represented, V represents average pore flow velocity.
In the present embodiment, data storage and output module 24 can be used for the electrical conductivity number for obtaining processor module 21
According to the storage and transmission of the data such as the concentration of, reactor solution, monitoring time, relative concentration and dispersion parameter；Input equipment
23 and display screen 25 operated for user and check data message.
The advantageous effects of the present embodiment are：
(1) experiment earth pillar can quickly prepare, the state for testing earth pillar presses close to field actual conditions, save baking soil, filling,
The processes such as tamping；
(2) in hydraulic chamber hydraulic pressure effect under, experiment earth pillar tightly wrapped up by flexible sidewall, avoid experiment earth pillar with
Side wall caused by space between flexible sidewall is permeated；Hydraulic pressure make it that testing earth pillar maintains dense state simultaneously, not easy to break；
(3) reactor solution is pumped using wriggling, hydraulic pressure and flow velocity is can adjust in pumping procedure, to maintain hydraulic pressure and stream
The stabilization of speed, while test period can be shortened；
(4) change in concentration of the reactor solution of outflow is continuously monitored during testing, diafiltration can be obtained at any time
The detection information of liquid concentration.
Claims (8)
- A kind of 1. Dispersion Test equipment suitable for hypotonicity soil, it is characterised in that：The Dispersion Test equipment includes hydraulic pressure Room and the permeameter chamber for accommodating experiment earth pillar；The hydraulic chamber connects with pressure-applying unit；The permeameter chamber is arranged on The inside of the hydraulic chamber；The permeameter chamber include instrument chamber take over a business, the flexible sidewall of instrument bottom of chamber disk and tubular, the instrument chamber Take over a business and instrument bottom of chamber disk forms with the both ends of the flexible sidewall be tightly connected respectively；Instrument bottom of chamber disk, which is connected with, to be shown Track agent fill assembly, the instrument chamber take over a business to be connected with tracer and collect detection components.
- A kind of 2. Dispersion Test equipment suitable for hypotonicity soil according to claim 1, it is characterised in that：It is described to add Pressure component includes pressure water tank, pressure regulator valve and pressure-reducing valve；The pressure water tank connects the hydraulic chamber bottom by feed pipe Water inlet；The pressure regulator valve and the pressure-reducing valve are sequentially arranged on the feed pipe.
- A kind of 3. Dispersion Test equipment suitable for hypotonicity soil according to claim 1, it is characterised in that：The water Steam vent is provided with the top of pressure chamber, the steam vent is provided with air vent valve.
- A kind of 4. Dispersion Test equipment suitable for hypotonicity soil according to claim 1, it is characterised in that：It is described to show Track agent fill assembly includes tracer agent container and peristaltic pump, and the water inlet of the peristaltic pump connects the tracer by flexible pipe Agent container, the delivery port of the peristaltic pump connect the water inlet on the disk of the instrument bottom of chamber by water inlet pipe.
- A kind of 5. Dispersion Test equipment suitable for hypotonicity soil according to claim 1, it is characterised in that：It is described to show Detection components are collected in track agent includes tracer collection vessel, flowmeter and dispersion parameter computing device；The tracer is collected Container by outlet pipe connect the instrument chamber take over a business on delivery port, the flowmeter be arranged on the outlet pipe on, it is described more The conductivity probe for dissipating parameter calculation apparatus is arranged on inside the tracer collection vessel.
- A kind of 6. Dispersion Test equipment suitable for hypotonicity soil according to claim 5, it is characterised in that：It is described more Scattered parameter calculation apparatus also includes conductivity electrode module, signal conversion module and processor module；The signal converts mould Block is connected between the conductivity electrode module and the processor module, the conductivity probe and the conductivity electrode Module connects；The processor die block gap scheduled time gathers the conductivity probe by the conductivity electrode module and examined The conductivity data measured.
- A kind of 7. Dispersion Test equipment suitable for hypotonicity soil according to claim 1, it is characterised in that：The instrument Chamber is taken over a business and instrument bottom of chamber disk is provided with permeable stone close to the side of the experiment earth pillar.
- A kind of 8. Dispersion Test equipment suitable for hypotonicity soil according to claim 1, it is characterised in that：It is described soft Property side wall is the thin mould of flexible rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007408.7U CN207020049U (en) | 2017-08-11 | 2017-08-11 | A kind of Dispersion Test equipment suitable for hypotonicity soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007408.7U CN207020049U (en) | 2017-08-11 | 2017-08-11 | A kind of Dispersion Test equipment suitable for hypotonicity soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207020049U true CN207020049U (en) | 2018-02-16 |
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ID=61478342
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721007408.7U Active CN207020049U (en) | 2017-08-11 | 2017-08-11 | A kind of Dispersion Test equipment suitable for hypotonicity soil |
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| CN (1) | CN207020049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389530A (en) * | 2017-08-11 | 2017-11-24 | 上海岩土工程勘察设计研究院有限公司 | A kind of Dispersion Test equipment suitable for hypotonicity soil |
| CN113109239A (en) * | 2021-05-18 | 2021-07-13 | 江西理工大学 | Improved multifunctional earth pillar penetration experiment device |
-
2017
- 2017-08-11 CN CN201721007408.7U patent/CN207020049U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389530A (en) * | 2017-08-11 | 2017-11-24 | 上海岩土工程勘察设计研究院有限公司 | A kind of Dispersion Test equipment suitable for hypotonicity soil |
| CN113109239A (en) * | 2021-05-18 | 2021-07-13 | 江西理工大学 | Improved multifunctional earth pillar penetration experiment device |
| CN113109239B (en) * | 2021-05-18 | 2022-10-14 | 江西理工大学 | Improved multifunctional earth pillar penetration experiment device |
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