CN106596229A - Device and method capable of preparing triaxial kaolin sample by use of externally connected gas pump - Google Patents
Device and method capable of preparing triaxial kaolin sample by use of externally connected gas pump Download PDFInfo
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- CN106596229A CN106596229A CN201710050593.6A CN201710050593A CN106596229A CN 106596229 A CN106596229 A CN 106596229A CN 201710050593 A CN201710050593 A CN 201710050593A CN 106596229 A CN106596229 A CN 106596229A
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- cylinder
- piston rod
- consolidation
- kaolin
- cover plate
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- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 28
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 28
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 26
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 5
- 238000007596 consolidation process Methods 0.000 claims description 59
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 22
- 229920005372 Plexiglas® Polymers 0.000 claims description 22
- 239000004575 stone Substances 0.000 claims description 21
- 239000002689 soil Substances 0.000 claims description 12
- 238000011068 loading method Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 241000282693 Cercopithecidae Species 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract 6
- 230000008023 solidification Effects 0.000 abstract 6
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000007493 shaping process Methods 0.000 abstract 2
- 239000002585 base Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229920005479 Lucite® Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a device capable of preparing triaxial kaolin sample by use of an externally connected gas pump. The device comprises an air pressure control device and a solidification shaping device, wherein the solidification shaping device comprises a transparent cylindrical organic glass cover, a solidification cylinder upper cover plate and a solidification cylinder base; the air pressure control device comprises an air cylinder, a piston rod and a control valve, the piston rod penetrates through the solidification cylinder base and is coaxially arranged in the cylindrical organic glass cover, and the air pressure control device is used for regulating air pressure in an air cylinder to push the piston rod to move up and down. According to the device, all that is required is to change the external connection air pressure, the solidification pressure can be regulated, the pressure value can be adjusted continuously, the device is lighter and mobile, can be used for sampling in a small-size triaxial test and is particularly applicable to sample preparation in tests including triaxial shear, power cycle and the like of kaolin.
Description
Technical field
The present invention relates to a kind of preparation facilities of the axle sample of kaolin three, more particularly to one kind can be produced using external air pump
The device and method of the axle sample of kaolin three, the device can be used for portable air pump loading and the processing of lower cost, can use
Prepare in the sample preparation of the tests such as kaolin triaxial machining, power cycle.
Background technology
Kaolin is a kind of common clay mineral, because its permeability preferably, is easily standardized, therefore is widely used in soil
In work model test, geotechnical centrifuge test, the predominantly place such as simcity foundation ditch, tunnel, ocean pile foundation, submarine pipeline
Cohesive soil stratum.The conventional interior triaxial test of its mechanics parameter is demarcated.Kaolin needs into sampling device by mud to the process into sample,
The consolidation device of the similar remoulded clay of its principle.Through literature survey, it is found that existing patent focuses primarily upon the weight of general clay
The native sample preparation of modeling, such as cool beauty autumn (2015), wealth is rich to wait (2014), Zhang Xianwei and Kong Lingwei (2012), etc..These manipulated soils
What sample preparation facilities had is loaded with counterweight, and some sizes are less can not to make soil particle fully flow precipitation, therefore is not suitable for height
The preparation of ridge three axle samples of soil.In addition, external colleague has special air pressure-loading to prepare the device of the axle sample of kaolin three, such as
WangY.H.＆Siu W.K. (2006), its device materials use the stainless steel of finishing so that installation cost is very high, do not apply to
In domestic laboratory.It is contemplated that prepared on the basis of the axle sample of kaolin three based on foreign countries, by transforming internal junction
Structure and material, substantially reduce the cost of the axle sample preparation device of kaolin three, while filling up the blank of domestic correlation technique.
The content of the invention
The technical problem to be solved in the present invention mainly include it is following some：1) the domestic conventional axle sample preparation of kaolin three now
Device, its loading source is mainly counterweight, and this load mode cannot be realized loading the consecutive variations of numerical value, may reduce into sample
Quality.Simultaneously counterweight is very heavy, and causing the mobility of sample preparation device reduces.In addition, counterweight loading cannot be used for it is little straight
The sample preparation device (diameter of the axle sample of current main flow three is 38 millimeters, and counterweight cannot be loaded) in footpath, and its own weight generation
Load it is extremely limited；2) the external axle sample preparation device of kaolin three for adopting is sufficiently expensive, high accuracy processing that it is adopted and
Succinct internal structure greatly improves cost.
The device that the axle sample of kaolin three is produced using external air pump of the present invention, including Pneumatic controller and consolidation
Into sampling device；
Described Pneumatic controller includes external pneumatic control valve, cylinder, piston rod, wherein, the upper end of piston rod
The piston plate with undercut is provided with, conduction hole is provided with piston plate, a piece of permeable stone is provided with piston plate undercut；Control valve is used for
Air pressure-loading and unloading in control device；
Described is consolidated into sampling device by transparent with machine glass cylinder outer cover, consolidation cylinder upper cover plate, consolidation cylinder base three
Part constitutes, piston rod through consolidation cylinder base with being located in plexiglass cylinder outer cover, plexiglass cylinder outer cover with it is solid
Knot cylinder upper cover plate, piston plate, consolidation cylinder base respectively pass through a rubber seal rings for seal；Through hole company is provided with consolidation cylinder upper cover plate
Drainage tube is connect, consolidation cylinder upper cover plate is arranged with a piece of permeable stone, is provided with lower conduction hole on consolidation cylinder base and leads for external
Pipe discharges the Free water that soil solidifying is produced, and between consolidation cylinder upper cover plate, consolidation cylinder base some uniform rigid spiral shells are passed through
Bar is fastened, and is fixedly connected by consolidating cylinder cylinder rebound between consolidation cylinder base and the shell of cylinder.
Between described piston rod and piston plate, between piston rod and Pneumatic controller, external pneumatic control valve with
Connected using waterproof between cylinder, between rebound and consolidation cylinder base and Pneumatic controller.
The described valve concrete structure that controls is：It is provided with valve body by the through hole for switching to upper and lower two-way all the way, so as to be formed
Up and down two-way inlet channel, is provided with slide block in through hole, and monkey wrench is provided with valve body, and monkey wrench is mutually used in conjunction with slide block
In control slide block movement to realize the open and close to inlet channel, the external air pump of air admission hole of inlet channel, piston rod
Cylinder is divided into upper and lower two cavity by lower end, the outlet of upper air passage is connected with lower chamber of air cylinder body phase, and lower inlet channel goes out
Mouth is connected with upper chamber of air cylinder body phase, is provided with through hole in the not yet bifurcation of inlet channel and is led to air.When slide block is moved to down
By the passage plugging in gas passage, external air pressure will enter lower chamber of air cylinder body from upper air passage, and the gas being now passed through makes gas
The air pressure of lower part rises in cylinder, promotes piston rod to rise；Conversely, when slide block is by upper air channel blockage, then gas enters from down
Gas passage enters upper chamber of air cylinder body, so as to increase its interior air pressure, moves down piston rod.When spanner is at middle gear, i.e. slide block
When inlet channel crotch all blocks upper and lower two inlet channels, gas can only flow out from the through hole with atmosphere,
Now piston rod remains stationary.
Height of the length of the piston rod more than plexiglass cylinder outer cover.
It is the positive and negative pressure device of wall-hanging or removable air pump to the pneumatic supply that external Pneumatic controller is further applied load.
Using the method that above-mentioned device produces the axle sample of kaolin three, comprise the steps：External gas are connected first
Pressure, ventilation checks the air-tightness of outside tube, and plexiglass cylinder outer cover is put into the undercut of consolidation cylinder base after inspection is errorless
On, rubber sealing ring is placed with undercut；
Adjusting control valve pressurizes, stabilized plexiglass cylinder outer cover so that piston rod is moved upwards, when piston rod is reached
Behind the position most gone up, the filter paper for soaking is placed on the permeable stone of piston plate, adjusting control valve unloading makes piston rod drop down onto most bottom
End simultaneously ensures that filter paper is close to permeable stone simultaneously, then kaolin mud pour in consolidation cylinder to distance consolidation cylinder top～centimetre
Stop grouting during place.The filter paper that another soaks is put into the permeable stone surface of upper cover plate, upper cover plate lid to lucite is justified
Cylinder outer cover on and adopt seal with elastometic washer, then penetrate rigid threaded rod, by upper cover plate with consolidate cylinder base tighten, adjusting control valve
Pressurization, pushes up piston rod, and after mud upper surface just contacts with the filter paper under upper cover plate, closing control valve causes piston
Bar is static to current location；According to the pressurization size of the predetermined total series and every one-level for consolidating loading, adjusting control valve
Pressurizeing step by step to relevant pressure carries out sample preparation, after the completion of sample preparation, unclamps rigid threaded rod, dismantles upper cover plate, will be tried using piston rod
Sample pushes away consolidation cylinder.
Preferably it is connected with air gauge at the enterprising gas port of control valve, such that it is able to obtain the load that air pressure is produced in real time.
Control valve promotes piston to realize the pressurization to sample and device unloading by the air pressure of the upper and lower cavity of control cylinder.
There are drainage plate and undercut on piston plate, can here placement permeable stone.The water produced during soil solidifying is from drainage plate
Aperture flow out, collect in cavity, the pipe for then picking out from lower conduction hole flows out, and undercut and permeable is arranged at upper cover plate bottom
Stone, it is ensured that the upper and lower draining of sample.The waterproof of whole device is particularly significant.The water that sample is discharged downwards product above lower conduction hole
It is poly-, therefore need to add sealing ring waterproof between piston rod and rebound.Piston plate with piston rod by being threadedly coupled, antirust herein
It is more difficult do and with permeable stone directly contact, it is therefore desirable to Jing often adds vaseline in screw.In addition, control valve, rebound with
The connecting sewing of cylinder is as little as possible, and extra waterproof measure is done if necessary.To increase the drainability in upper draining face, can draw by
Flow tube is connected with negative pressure, and the principle for being similar to vacuum preconsolidation method accelerates consolidation.Due to design cylinder and piston plate it is effective
Area (i.e. with kaolinic contact surface) is equal, therefore external barometric reading is without the need for conversion, i.e. consolidation pressure suffered by sample
Size.In addition, the processing circularity requirement of plexiglass tent is higher, can otherwise cause the frictional force between piston plate and cover body uneven
And leak occurs, the situation of mud is leaked.
Compared with prior art, the invention has the beneficial effects as follows：
1. the present invention applies consolidation pressure using external air pressure to sample, and this kind of pressuring method has advantages below：Can be even
Continuous regulation pressure value, it is lighter, removable, can be used for the sample preparation of small size triaxial test, can simultaneously give a collection of sample preparation device
Pressurization, makes full use of the existing device in laboratory, without wasting thing etc..
2. the design that plexiglass tent is connected with cylinder is employed, then must finishing according to steel under equal length
Work, in comparison cost is significantly reduced this programme, and sample preparation effect meets test requirements document.Consolidation cylinder is made using lucite also
There are two advantages, one can be to meet the sample preparation requirement under acid, alkali, salt environment, and two is to be conducive to test transparent with machine glass
Person observes into the height change situation of sample.
3., as the improvement of the present invention, it is the full-automation for realizing kaolin sample preparation, can be by control valve portion by people's industry control
System is changed to programme-control, so as to realize standardizing sample preparation, reduces the sample preparation error that human factor is produced.
Description of the drawings
Fig. 1 is the axle sample preparation device structural representation of kaolin three that the present invention can utilize external air pump,
Fig. 2 is the concrete structure schematic diagram that valve is controlled in the present invention；
Wherein：Pneumatic controller 1, external pneumatic control valve 1-1, slide block 1-1-1, through hole 1-1-2, piston rod 1-2, work
Seben 1-2-1, conduction hole 1-2-2, permeable stone 1-2-3, plexiglass cylinder outer cover 2-1, rubber seal 2-1-1, consolidation cylinder
Upper cover plate 2-2, drainage tube 2-2-1, rigid threaded rod 2-2-2, consolidation cylinder base 2-3, consolidation cylinder-cylinder rebound 2-3-1, under draw
Discharge orifice 2-3-2.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further described.
As shown in figure 1, the present invention provides a kind of device that the axle sample of kaolin three is produced using external air pump, including gas
Pressure control device 1 can be the positive and negative pressure device of wall-hanging or may move with the two parts of sampling device 2, the pneumatic supply being further applied load is consolidated into
Air pump.Described Pneumatic controller 1 is made up of external pneumatic control valve 1-1, cylinder, piston rod 1-2.Wherein, cylinder piston
The upper end of bar 1-2 is made up of the piston plate 1-2-1 with undercut, conduction hole 1-2-2 and permeable stone 1-2-3, piston plate 1-2-1
There is circle rubber seal 2-1-1 in outside.Described is consolidated into sampling device 2 by lid on plexiglass cylinder outer cover 2-1, consolidation cylinder
Plate 2-2, the part compositions of consolidation cylinder base 2-3 tri-.Wherein, plexiglass cylinder outer cover 2-1 is by the rubber at upper, middle and lower three
Sealing ring 2-1-1 is contacted respectively with consolidation cylinder upper cover plate 2-2, piston plate 1-2-1, consolidation cylinder base 2-3；Consolidation cylinder upper cover plate 2-
Through hole connection drainage tube 2-2-1 is provided with 2, consolidation cylinder upper cover plate 2-2 is arranged with a piece of permeable stone, in consolidation cylinder base 2-3
On be provided with lower conduction hole 2-3-2 for external catheter discharge soil solidifying produce Free water, consolidation cylinder upper cover plate 2-2, consolidation
By some uniform rigid threaded rod 2-2-2 fastenings between cylinder base 2-3, between consolidation cylinder base 2-3 and the shell of cylinder
It is fixedly connected by consolidating cylinder-cylinder rebound 2-3-1.
It can be aluminum material to be consolidated into sampling device main body, and plexiglass cylinder outer cover 2-1 is made up of polypropylene, transparent
Situation of change of the stack shell observable into sample height；The setting of many places rubber seal can guarantee that the top and bottom of consolidation soil sample and consolidate
Knot cylinder base is water-tight, leakage mud；Permeable stone 1-2-3 can adopt permeable metal material, it is ensured that acid, alkaline Pore Solution will not be right
Permeable stone produces impact.Between piston rod 1-2 and piston plate 1-2-1, between piston rod 1-2 and Pneumatic controller 1, external gas
Between pressure control valve 1-1 and Pneumatic controller 1, between rebound 2-3-1 and consolidation cylinder base 2-3 and Pneumatic controller 1
Connection all need to do water-proofing treatment.
The length of the piston rod 1-2 should be greater than the height of plexiglass cylinder outer cover 2-1, it is ensured that soil sample can be with after making
Smoothly release.
As shown in Figure 2：Controlling valve 1-1 concrete structures is：It is provided with valve body by the through hole for switching to upper and lower two-way all the way, from
And upper and lower two-way inlet channel is formed, and slide block 1-1-1 is provided with through hole, monkey wrench is provided with valve body, monkey wrench
It is connected with slide block for control slide block movement to realize the open and close to inlet channel, the air admission hole external gas of inlet channel
Cylinder is divided into upper and lower two cavity by pump, the lower end of piston rod, and the outlet of upper air passage is connected with lower chamber of air cylinder body phase, under enter
The outlet of gas passage is connected with upper chamber of air cylinder body phase, is provided with through hole in the not yet bifurcation of inlet channel and is led to air, the through hole
Valve can be provided with to control the break-make of the through hole.By the passage plugging (shape in such as Fig. 2 in slide block is moved to lower inlet channel
State), external air pressure will enter lower chamber of air cylinder body from upper air passage, and the gas being now passed through makes to descend part atmospherically in inflator
Rise, promote piston rod to rise；Conversely, when slide block is by upper air channel blockage, then gas enters upper chamber of air cylinder from lower inlet channel
Body, so as to increase its interior air pressure, moves down piston rod.When spanner is incited somebody to action in middle gear, i.e. slide block in inlet channel crotch
When upper and lower two inlet channels are all blocked, gas can only flow out from the through hole with atmosphere, now piston rod remains stationary.
The course of work of the present invention is as follows：After the device cleaning that last time is made good use of, each part of whole device is detached.
External air pressure is connected first, is ventilated, the air-tightness of outside tube is checked, by plexiglass cylinder outer cover 2-1 after inspection is errorless
It is put on consolidation cylinder base 2-3, though make between consolidation cylinder 2-1 and base 2-3 that malcompression will not by rubber sealing ring sealing
Leakage mud.Adjusting control valve 1-1 pressurizes, i.e., by the lower inlet channel of spanner adjusting slider closure, outside stabilized plexiglass cylinder
Cover 2-1 so that piston rod 1-2 is moved upwards, after piston rod reaches the position most gone up, by the filter paper for soaking piston plate is placed on
On permeable stone 1-2-3, adjusting control valve causes lower chamber of air cylinder body to unload, and piston rod 1-2 is dropped down onto lowermost end and is ensured filter simultaneously
Paper is close to permeable stone, and then kaolin mud is poured in consolidation cylinder 2-1 to stopping during distance consolidation cylinder 1～2 centimeters of top
Grouting.The filter paper that another soaks is put into the permeable stone surface of upper cover plate 2-2, upper cover plate 2-2 lids to plexiglass cylinder
On outer cover 2-1 and seal with elastometic washer is adopted, then penetrate rigid threaded rod 2-2-2, upper cover plate is tightened with consolidation cylinder base, adjusted
Control valve pressurization, pushes up piston rod, after mud upper surface just contacts with the filter paper under upper cover plate 2-2, closing control
Valve 1-1 causes piston rod 1-2 static to current location；According to the pressurization of the predetermined total series and every one-level for consolidating loading
Size, adjusting control valve to relevant pressure pressurizes step by step carries out sample preparation, after the completion of sample preparation, rigid threaded rod 2-2-2 is unclamped, in dismounting
Cover plate 2-2, consolidation cylinder is pushed away using piston rod 1-2 by sample.
Only need to increase consolidation pressure by changing the size of external air pressure in sample making course.Whole sample making course is probably needed
3～5 days are taken, is completed into and unclamp after sample rigidity long bolt 2-2-2 and take out, dismantle upper cover plate 2-2, then increase external air pressure
Size, consolidation cylinder is pushed away using lift piston rod 1-2 by sample, notices that the process is needed with outside the stabilized plexiglass cylinder of hand
Cover 2-1.Take away and completely dismantle whole sample preparation device after soil sample, finally clean various pieces.
Claims (6)
1. it is a kind of to produce the device of the axle sample of kaolin three using external air pump, it is characterised in that including Pneumatic controller
(1) and it is consolidated into sampling device (2)；
Described Pneumatic controller (1) includes external pneumatic control valve (1-1), cylinder, piston rod (1-2), wherein, piston rod
(1-2) upper end is provided with the piston plate with undercut (1-2-1), and conduction hole (1-2-2), piston are provided with piston plate (1-2-1)
A piece of permeable stone is provided with plate (1-2-1) undercut；Control valve (1-1) is used for air pressure-loading and unloading in control device；
Described is consolidated into sampling device (2) by transparent with machine glass cylinder outer cover (2-1), consolidation cylinder upper cover plate (2-2), consolidation
Cylinder base (2-3) three part composition, through consolidating, cylinder base (2-3) is same to be located in plexiglass cylinder outer cover to piston rod (1-2)
(2-1) in, plexiglass cylinder outer cover (2-1) with consolidation cylinder upper cover plate (2-2), piston plate (1-2-1), consolidation cylinder base (2-
3) respectively by rubber seal (2-1-1) sealing；Through hole connection drainage tube (2-2- is provided with consolidation cylinder upper cover plate (2-2)
1), consolidate cylinder upper cover plate (2-2) and be arranged with a piece of permeable stone, in consolidation cylinder base (2-3) lower conduction hole (2-3-2) is provided with
The Free water that soil solidifying is produced is discharged for external catheter, is led between consolidation cylinder upper cover plate (2-2), consolidation cylinder base (2-3)
Cross some uniform rigid threaded rods (2-2-2) fastenings, consolidation cylinder base (2-3) and the shell of cylinder between by consolidate cylinder-
Cylinder rebound (2-3-1) is fixedly connected.
2. the device that the axle sample of kaolin three is produced using external air pump according to claim 1, it is characterised in that institute
Between the piston rod (1-2) stated and piston plate (1-2-1), between piston rod (1-2) and Pneumatic controller (1), external air pressure
Control valve (1-1) to adopt and cylinder between, between rebound (2-3-1) and consolidation cylinder base (2-3) and Pneumatic controller (1)
Connected with waterproof.
3. the device that the axle sample of kaolin three is produced using external air pump according to claim 1, it is characterised in that institute
Valve (1-1) concrete structure that controls stated is：It is provided with valve body by the through hole for switching to upper and lower two-way all the way, so as to form upper and lower two
Road inlet channel, is provided with slide block (1-1-1) in through hole, and monkey wrench is provided with valve body, and monkey wrench is connected with slide block
For control slide block movement realizing the open and close to inlet channel, the external air pump of air admission hole of inlet channel, piston rod
Lower end cylinder is divided into into upper and lower two cavity, the outlet of upper air passage is connected with lower chamber of air cylinder body phase, lower inlet channel
Outlet is connected with upper chamber of air cylinder body phase, and the through hole (1-1-2) for leading to air is provided with the not yet bifurcation of inlet channel.
4. the device that the axle sample of kaolin three is produced using external air pump according to claim 1, it is characterised in that institute
State the height of the length more than plexiglass cylinder outer cover (2-1) of piston rod (1-2).
5. the device that the axle sample of kaolin three is produced using external air pump according to claim 1, it is characterised in that to
The pneumatic supply that external Pneumatic controller is further applied load is the positive and negative pressure device of wall-hanging or removable air pump.
6. the method for producing the axle sample of kaolin three using device as claimed in claim 1, it is characterised in that including following step
Suddenly：External air pressure is connected first, is ventilated, the air-tightness of outside tube is checked, by plexiglass cylinder outer cover after inspection is errorless
(2-1) it is put in the undercut of consolidation cylinder base (2-3), rubber sealing ring (2-1-1) is placed with undercut；
Adjusting control valve (1-1) pressurizes, stabilized plexiglass cylinder outer cover (2-1) so that piston rod (1-2) is moved upwards,
After piston rod reaches the position most gone up, the filter paper for soaking is placed on the permeable stone of piston plate (1-2-3), adjusting control valve is unloaded
Carry, make piston rod (1-2) drop down onto lowermost end and while ensure that filter paper is close to permeable stone, then kaolin mud is poured into consolidation cylinder
(2-1) grouting is stopped when in distance consolidation cylinder top (1)～(2) centimeters.The filter paper that another soaks is put into upper cover plate
(2-2) permeable stone surface, upper cover plate (2-2) lid is on plexiglass cylinder outer cover (2-1) and adopts seal with elastometic washer, so
After penetrate rigid threaded rod (2-2-2), by upper cover plate with consolidation cylinder base tighten, adjusting control valve pressurization, push up piston rod,
After mud upper surface just contacts with the filter paper under upper cover plate (2-2), closing control valve (1-1) causes piston rod (1-2) quiet
Only to current location；According to the pressurization size of the predetermined total series and every one-level for consolidating loading, adjusting control valve is to phase
Answering pressure to pressurize step by step carries out sample preparation, after the completion of sample preparation, unclamps rigid threaded rod (2-2-2), dismounting upper cover plate (2-2), using work
Sample is pushed away consolidation cylinder by stopper rod (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050593.6A CN106596229A (en) | 2017-01-23 | 2017-01-23 | Device and method capable of preparing triaxial kaolin sample by use of externally connected gas pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050593.6A CN106596229A (en) | 2017-01-23 | 2017-01-23 | Device and method capable of preparing triaxial kaolin sample by use of externally connected gas pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106596229A true CN106596229A (en) | 2017-04-26 |
Family
ID=58585246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710050593.6A Pending CN106596229A (en) | 2017-01-23 | 2017-01-23 | Device and method capable of preparing triaxial kaolin sample by use of externally connected gas pump |
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| CN (1) | CN106596229A (en) |
Cited By (2)
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| CN108303301A (en) * | 2018-02-13 | 2018-07-20 | 浙江大学 | The device of kaolin hollow cylinder sample is produced using external air pump |
| CN109085036A (en) * | 2018-08-27 | 2018-12-25 | 中南大学 | A kind of device and application method of Quick uniform preparation triaxial test soil sample |
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| FR2933495A1 (en) * | 2008-07-07 | 2010-01-08 | Univ Lille Sciences Tech | TRIAXIAL CELL OF GEOMATERIALS UNDER PRESSURE AND SHEAR |
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| CN108303301A (en) * | 2018-02-13 | 2018-07-20 | 浙江大学 | The device of kaolin hollow cylinder sample is produced using external air pump |
| CN108303301B (en) * | 2018-02-13 | 2023-10-13 | 浙江大学 | Device for preparing kaolin hollow cylinder sample by using external air pump |
| CN109085036A (en) * | 2018-08-27 | 2018-12-25 | 中南大学 | A kind of device and application method of Quick uniform preparation triaxial test soil sample |
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