CN106248551A - Lateral sectional sampling original state clay ultrafiltration assay device - Google Patents

Lateral sectional sampling original state clay ultrafiltration assay device Download PDF

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Publication number
CN106248551A
CN106248551A CN201610648632.8A CN201610648632A CN106248551A CN 106248551 A CN106248551 A CN 106248551A CN 201610648632 A CN201610648632 A CN 201610648632A CN 106248551 A CN106248551 A CN 106248551A
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China
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base
pressure
lateral
cover
sidewall
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CN201610648632.8A
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Chinese (zh)
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CN106248551B (en
Inventor
高宗军
时孟杰
张洪英
夏璐
牟林凯
刘久潭
董涛
陆瀛
林海斌
王晗
文坦
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山东科技大学
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082Investigating permeability by forcing a fluid through a sample

Abstract

The invention discloses a kind of lateral sectional sampling original state clay ultrafiltration assay device, including by top cover, the closed cavity that base and sidewall surround, flexible silicon gum cover pipe and perforated casing it is provided with in closed cavity, feed pathway it is provided with in top cover, bottom sample tap it is provided with in base, confined pressure chamber is formed between perforated casing and flexible silicon gum cover pipe, sidewall offers the confined pressure hole in connection confined pressure chamber, at sidewall, the corresponding position of perforated casing and flexible silicon gum cover pipe is provided with lateral sample tap, at lateral sample tap, screwed pipe is installed, sidewall and flexible silicon gum cover pipe are provided with the hickey suitable with screwed pipe, on flexible silicon gum cover pipe, the position of corresponding lateral sample tap is provided with flexible filter screen.The present invention sets up multiple lateral sample tap on ultrafiltration tester, can be sampled the transudate through undisturbed soil sample various location as required, thus realizes the analysis to transudate variation of water in clay.

Description

Lateral sectional sampling original state clay ultrafiltration assay device
Technical field
The present invention relates to a kind of for original state clay is permeated with filter salt ability carry out laboratory test ultrafiltration test Device, concretely relates to a kind of lateral sectional sampling original state clay ultrafiltration assay device.
Background technology
The material that mainly comprises of aquiclude is cohesive soil, and soil CLAY MINERALS AND THEIR SIGNIFICANCE with montmorillonite, illite, kaolinite is Main.In order to verify the filter salt effect of aquiclude, need to carry out high pressure infiltration experiment.Existing penetration testing equipment is mainly darcy Tester, but darcy tester is only applicable to low pressure or minute-pressure.Common high pressure permeability equipment such as three the most popular axial compressions Although power meter can survey high pressure, but is only applicable to the solid rock of consolidation, it is not particularly suited for viscosity soil sample.
Filed in 8 days Mays in 2015 of applicant, the Chinese invention patent of Application No. 201510229210.2 discloses A kind of false three axle high pressure infiltration experiment instrument, its sealing using the method adding confined pressure extruding flexible wall to solve soil sample perisporium is asked Topic, can be used for infiltration and the filter salt aptitude tests of cohesive undisturbed soil sample.But these false three axle high pressure infiltration experiment instrument are only capable of in bottom Exit samples, and sample point is less, it is impossible to enough variation of water to transudate in clay are analyzed.
Summary of the invention
Based on above-mentioned technical problem, the present invention provides a kind of lateral sectional sampling original state clay ultrafiltration assay device.
The adopted technical solution is that:
A kind of lateral sectional sampling original state clay ultrafiltration assay device, including ultrafiltration tester, described ultrafiltration tester bag Including outer top cover, outer base and connect outer top cover and the sidewall of outer base, outer top cover, outer base and sidewall surround closed cavity, Be provided with in closed cavity internal head cover, interior base, for being coated with flexible silicon gum cover pipe and the perforated casing of undisturbed soil sample, Described internal head cover is arranged on below outer top cover, is provided with, in internal head cover and outer top cover, the feed pathway connected, and feed pathway is external Axial compression Pressure gauge, described interior base is arranged on above outer base, is provided with exhalant canal in interior base, is provided with and water outlet in outer base The water storage cavity of channel connection and the bottom sample tap that water storage cavity is in communication with the outside, internal head cover, interior base and flexible silicon gum cover Circumference of cannon bone becomes undisturbed soil sample permeation chamber, and perforated casing is enclosed within the outside of flexible silicon gum cover pipe, at perforated casing and flexible silicon gum cover pipe Between formed confined pressure chamber, sidewall offers connection confined pressure chamber confined pressure hole, confined pressure hole external confined pressure Pressure gauge, sidewall, The corresponding position of perforated casing and flexible silicon gum cover pipe is provided with lateral sample tap, is provided with screwed pipe at lateral sample tap, Being provided with the hickey suitable with screwed pipe on sidewall and flexible silicon gum cover pipe, on flexible silicon gum cover pipe, correspondence laterally takes The position of sample mouth is provided with flexible filter screen.
Preferably, described lateral sample tap arranges 2~5, and along sidewall in being intervally arranged up and down.
Preferably, the bottom surface of described internal head cover is provided with the first groove, places the first water filter plate in the first groove, described interior The end face of base is provided with the second groove, place in the second groove the second water filter plate, described intake tunnel and the first water filter plate it Between be provided with top inner chamber, be provided with end inner chamber between exhalant canal and the second water filter plate, described water filter plate contacts up and down with undisturbed soil sample Steel gauze it is provided with between face.
Preferably, the bottom of described internal head cover is provided with downwardly projecting peripheral flange, the top of described interior base be provided with to The peripheral flange protruded above, described flexible silicon gum cover pipe uses sealing steel card to add with the outside of internal head cover and interior base peripheral flange Gu seal.
Preferably, described interior base and internal head cover are contacted with sidewall by the first O-ring seal respectively, described internal head cover Upper surface is contacted with outer top cover by the second O-ring seal, and the 3rd O-ring seal and outer base is passed through in described interior base lower surface Contacting, described outer top cover and outer base are screwed respectively in sidewall upper and lower end face.
Preferably, this ultrafiltration assay device also includes manual pressure device and from gravity pressue device, described manual pressure Device includes reserving liquid tank, is provided with the pumped well structure extruded by the liquid hand stored in reserving liquid tank, in storage on reserving liquid tank One end of liquid case is provided above liquid injection port;Described include base, top board and bearing plate from gravity pressue device, on base and top Being provided with support column between plate, described bearing plate is sheathed on the support columns, and can move up and down along support column, puts on bearing plate Being equipped with and join pressing plate, be provided with hydraulic cavities on base, be internally provided with pilot post, pilot post and bearing plate in hydraulic cavities connect Connect;Described manual pressure device arranges two altogether, respectively axial compression manual pressure device and confined pressure manual pressure device, described from Gravity pressue device arranges two altogether, respectively first from gravity pressue device and second from gravity pressue device, described axial compression The liquid outlet of manual pressure device by the first hydraulic connecting pipe and first from the hydraulic chamber into communication of gravity pressue device, described the One is connected with feed pathway by the first voltage stabilizing outlet tube from the hydraulic cavities of gravity pressue device, described confined pressure manual pressure device Liquid outlet by the second hydraulic connecting pipe with second from the hydraulic chamber into communication of gravity pressue device, described second from gravity pressurization The hydraulic cavities of device is connected with confined pressure hole by the second voltage stabilizing outlet tube.
Preferably, described pumped well structure includes well body and pressure handle, and well body is hollow cylindrical structure, and the bottom of well body leads to Cross feed tube to connect with the bottom of reserving liquid tank, the top of well body is provided with liquid outlet, in the piston that is internally provided with of well body, institute State piston and be connected with driving its reciprocating pressure handle.
Preferably, described ultrafiltration tester arranges multiple, equal at the feed pathway and confined pressure hole of each ultrafiltration tester Connecting a threeway, the threeway at the feed pathway of all ultrafiltration testers is interconnected, at the confined pressure hole of all ultrafiltration testers Threeway connect the most mutually.
Preferably, described base and top board are all square, and described support column arranges four altogether, lay respectively at base and top board Corner at, described pilot post is connected with the center of bearing plate.
The method have the benefit that:
1, the present invention sets up multiple lateral sample tap on ultrafiltration tester, can be as required to different through undisturbed soil sample The transudate of position is sampled, thus realizes the analysis to transudate variation of water in clay.
2, the present invention is by installing screwed pipe at lateral sample tap, and arranges and screwed pipe on sidewall and flexible silicon gum cover pipe The mode of suitable hickey, can easily realize laterally sampling, and have preferable sealing effectiveness, additionally in flexible silicon On gum cover pipe, the position of corresponding lateral sample tap is provided with flexible filter screen, and undisturbed soil sample can play filtration iris action.
3, the present invention uses the mode that manual pressure device matches with from gravity pressue device, carries out ultrafiltration tester Mechanical type adds axial compression and confined pressure, and compared to pulsed force (forcing) pump or peristaltic pump, Stress control is more stable, accurate, greatly drops The low test error of process of the test.
4, owing to have employed the Purely mechanical pressuring method from gravity pressue device and manual pressure device, original state of the present invention Clay ultrafiltration assay device can be equipped with multiple ultrafiltration tester simultaneously, carries out organizing test operation more, and test efficiency is higher, and respectively Ultrafiltration tester is respectively provided with a threeway at feed pathway and confined pressure hole, can easily realize connecting, simple in construction, and manipulation is held Easily.
Accompanying drawing explanation
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings:
Fig. 1 is the structural principle schematic diagram of one embodiment of the present invention;
Fig. 2 is the structure diagram from gravity pressue device;
Fig. 3 is the structure diagram of manual pressure device;
Fig. 4 is the structural principle schematic diagram of ultrafiltration tester;
Fig. 5 is the partial enlarged drawing of Fig. 4, mainly illustrates the structure at lateral sample tap.
In figure: 1-ultrafiltration tester, the outer top cover of 101-, 102-outer base, 103-sidewall, 104-internal head cover, 105-inner bottom Seat, 106-flexible silicon gum cover pipe, 107-perforated casing, 108-feed pathway, 109-axial compression Pressure gauge, 1010-exhalant canal, 1011-water storage cavity, sample tap bottom 1012-, 1013-undisturbed soil sample permeation chamber, 1014-confined pressure chamber, 1015-confined pressure hole, 1016- Confined pressure Pressure gauge, the lateral sample tap of 1017-, 1018-screwed pipe, 1019-hickey, 1020-flexible filter screen, 1021-sealing steel Card, 1022-the first water filter plate, 1023-the second water filter plate, 1024-pushes up inner chamber, inner chamber at the bottom of 1025-, 1026-steel gauze, 1027- Screw, 1028-connecting tube, 2-manual pressure device, 201-reserving liquid tank, 202-pumped well structure, 203-liquid injection port, 2021-well Body, 2022-presses handle, 2023-feed tube, 2024-liquid outlet, 2025-piston, 2026-film, and 211-axial compression manual pressure fills Putting, 212-confined pressure manual pressure device, 3-is from gravity pressue device, 301-base, 302-top board, 303-bearing plate, and 304-props up Dagger, 305-joins pressing plate, 306-hydraulic cavities, 307-pilot post, 4-the first hydraulic connecting pipe, 5-voltage stabilizing outlet tube, 6-threeway, 7- Second hydraulic connecting pipe, 8-check valve, 9-the first water check valve, 10-the second water check valve.
Detailed description of the invention
As it is shown in figure 1, a kind of original state clay ultrafiltration assay device, including ultrafiltration tester 1, manual pressure device 2 and from Gravity pressue device 3.As shown in Figure 4, described ultrafiltration tester 1 includes outer top cover 101, outer base 102 and connects outer top cover 101 and the sidewall 103 of outer base 102, outer top cover 101, outer base 102 surround closed cavity, in closed cavity with sidewall 103 Be provided with internal head cover 104, interior base 105, for being coated with flexible silicon gum cover pipe 106 and the perforated casing 107 of undisturbed soil sample. Internal head cover 104 is arranged on below outer top cover 101, is provided with the feed pathway 108 connected, enters in internal head cover 104 and outer top cover 101 Liquid passage 108 external axial compression Pressure gauge 109.Described interior base 105 is arranged on above outer base 102, is provided with out in interior base 105 Aquaporin 1010, is provided with the water storage cavity 1011 that connects with exhalant canal and is in communication with the outside by water storage cavity in outer base 102 Bottom sample tap 1012.Internal head cover 104, interior base 105 surround undisturbed soil sample permeation chamber 1013 with flexible silicon gum cover pipe 106, have Hole sleeve 107 is enclosed within the outside of flexible silicon gum cover pipe 106, forms confined pressure between perforated casing 107 and flexible silicon gum cover pipe 106 Chamber 1014, also forms a chamber between perforated casing 107 and sidewall 103, offers confined pressure hole 1015, confined pressure hole on sidewall 1015 with above-mentioned chamber, and then connection confined pressure chamber 1014, confined pressure hole external confined pressure Pressure gauge 1016, at confined pressure hole arrange There is the second water check valve 10.The corresponding position of sidewall, perforated casing and flexible silicon gum cover pipe is provided with lateral sample tap 1017, As it is shown in figure 5, be provided with screwed pipe 1018 at lateral sample tap 1017, sidewall 103 and flexible silicon gum cover pipe 106 are provided with The hickey 1019 suitable with screwed pipe, on flexible silicon gum cover pipe 106, the position of corresponding lateral sample tap is provided with soft Property filter screen 1020.As it is shown on figure 3, described manual pressure device 2 includes reserving liquid tank 201, reserving liquid tank 201 is provided with liquid storage The pumped well structure 202 that in case, the liquid hand of storage extrudes, is provided above liquid injection port 203 in one end of reserving liquid tank.Such as Fig. 2 Shown in, described include base 301, top board 302 and bearing plate 303 from gravity pressue device 3, between base 301 and top board 302 Being provided with support column 304, described bearing plate 303 is set on support column 304, and can move up and down along support column.At bearing plate It is placed with on 303 and joins pressing plate 305, base 301 is provided with hydraulic cavities 306, be internally provided with pilot post in hydraulic cavities 306 307, the top of pilot post 307 is connected with movable bearing plate 303.As it is shown in figure 1, described manual pressure device arranges two altogether Individual, respectively axial compression manual pressure device 211 and confined pressure manual pressure device 212, described arrange one from gravity pressue device. The liquid outlet of described axial compression manual pressure device 211 is by the first hydraulic connecting pipe 4 and the hydraulic cavities from gravity pressue device 3 306 connections, described hydraulic cavities 306 is connected with the inlet of threeway 6 by voltage stabilizing outlet tube 5, a wherein liquid outlet of threeway 6 and Feed pathway 108 connects, and another liquid outlet is closed by the first water check valve 9.The liquid outlet of described confined pressure manual pressure device leads to Cross the second hydraulic connecting pipe 7 to connect with confined pressure hole 1015.At the first hydraulic connecting pipe 4, voltage stabilizing outlet tube 5 and the second hydraulic connecting It is provided with check valve 8 on pipe 7, makes the liquid can only one-way transmission, it is impossible to reverse reflux.
Above-mentioned lateral sample tap 1017 is preferably provided with 2~5, and along sidewall in being intervally arranged up and down.
As the further design to the present invention, as it is shown on figure 3, described pumped well structure 202 includes well body 2021 and pressure Handle 2022, well body 2021 is in hollow cylindrical structure, and the bottom of well body 2021 is by the bottom of feed tube 2023 with reserving liquid tank 201 Connection, is provided with liquid outlet 2024 on the top of well body 2021, is internally provided with piston 2025, at piston at well body 2021 The lower section of 2025 is fixed with film 2026, and described piston 2025 is connected with driving its reciprocating pressure handle 2022.This structure And operation principle is consistent with the structure and working principle of common pumped well.
Further, described base 301 and top board 302 are all square, and described support column 304 arranges four altogether, respectively Being positioned at the corner of base 301 and top board 302, described pilot post 306 is connected with the center of bearing plate 303.The design of this structure can The operation making bearing plate is more steady, and then the accurate control of beneficially axial compression.
Further, described ultrafiltration tester arranges multiple, at the feed pathway and confined pressure hole of each ultrafiltration tester Being all connected with a threeway, the threeway at the feed pathway of all ultrafiltration testers is interconnected by pipeline, all ultrafiltration testers Confined pressure hole at threeway be the most all interconnected by pipeline.Certainly, confined pressure pressure also can be by from gravity pressue device and confined pressure Manual pressure device provides jointly, and the water that i.e. confined pressure manual pressure device extrudes is introduced into another hydraulic pressure from gravity pressue device Chamber, then enters confined pressure hole under the effect of bearing plate and pilot post.
Further, as shown in Figure 4, the bottom of described internal head cover is provided with downwardly projecting peripheral flange, described inner bottom The top of seat is provided with peripheral flange protruding upward, described flexible silicon gum cover pipe and internal head cover and the outside of interior base peripheral flange Use sealing steel card 1021 to reinforce to seal.The bottom surface of described internal head cover is provided with the first groove, places the first filter in the first groove Water plate 1022, the end face of described interior base is provided with the second groove, places the second water filter plate 1023, described water inlet in the second groove It is provided with top inner chamber 1024 between passage and the first water filter plate, between exhalant canal and the second water filter plate, is provided with end inner chamber 1025.Institute State on the first water filter plate and undisturbed soil sample between contact surface and be equipped with steel between contact surface under the second water filter plate and undisturbed soil sample Gauze 1026.Described interior base and internal head cover are contacted with sidewall by the first O-ring seal respectively, described internal head cover upper surface Being contacted with outer top cover by the second O-ring seal, described interior base lower surface is connected with outer base by the 3rd O-ring seal Touching, described outer top cover and outer base are fixed on sidewall upper and lower end face by screw 1027 respectively.
Original state clay ultrafiltration assay device of the present invention, applicable original state clay can be non-consolidation plasticity cohesive undisturbed soil Sample.Below as a example by viscosity soil sample, in conjunction with present configuration its concrete workflow is described:
1, sample preparation: viscosity soil sample is processed into the cylindrical sample of accurate dimension;
2, setting-out seals:
1) flexible silicon gum cover pipe 106 snapped in place the interior base 105 of the second water filter plate 1023 and steel gauze 1026, Sealing steel card 1021 is used to fix on the downside of flexible silicon gum cover pipe 106;
2) cylindrical sample is put in flexible silicon gum cover pipe 106;
3) perforated casing 107 is enclosed within outside flexible silicon gum cover pipe 106, is placed on interior base 105;
4) the sealing steel card 1021 do not tightened is enclosed within the upside of flexible silicon gum cover pipe 106;
5) the steel gauze 1026 above sample and the first water filter plate 1022 being placed, internal head cover 104 snaps in flexible silica gel Sleeve pipe 106, tightens upside sealing steel card 1021;
6) putting in outer base 102 by above entirety, sidewall 103 is put, adjustment sidewall 103, perforated casing 107 make Lateral sample tap 1017 aligns;
7) screwed pipe 1018 is loaded so that it is tighten with the hickey 1019 on flexible silicon gum cover pipe 106 and sidewall 103;
8) tap water is filled it up with in confined pressure chamber 1014, build outer top cover 101, and fix with sidewall 103;
9) feed pathway 108 is connected with the voltage stabilizing outlet tube 5 from gravity pressue device by connecting tube 1028;
10) by the first hydraulic connecting pipe 4 of axial compression manual pressure device with the hydraulic cavities 306 from gravity pressue device even Logical, the second hydraulic connecting pipe 7 of confined pressure manual pressure device and the confined pressure hole 1015 of ultrafiltration tester are connected;
11) testing liquid configured is injected the reserving liquid tank of axial compression manual pressure device, takes from water and inject confined pressure hands The reserving liquid tank of dynamic pressue device, tests ready.
3, test:
1) the second water check valve 10 at ultrafiltration tester feed pathway 108 and confined pressure hole is closed, to axial compression manual pressure device Suitable pressure is applied respectively with confined pressure manual pressure device;
2) first slowly open the second water check valve 10 at confined pressure hole 1015, note observing confined pressure Pressure gauge 1016 at confined pressure hole Situation of change, slowly opens feed pathway 108 simultaneously, and observes the situation of change of axial compression Pressure gauge 109 at feed pathway, adjusts Axial compression and confined pressure size, it is ensured that at feed pathway, axial compression Pressure gauge 109 reading is not more than confined pressure Pressure gauge 1016 at confined pressure hole Reading.When the manometric reading of axial compression Pressure gauge and confined pressure is basicly stable, read pressure value, and record the time;
3) connect each lateral sample tap 1017 and bottom sample tap 1012 by rubber hose, and introduce in wide-mouth liquid containing bottle Collect transudate, sample when infusion bottle transudate reaches 20ml, and numbered Yi-j(wherein, i=1,2,3,4, represent respectively Top-down three lateral sample taps 1017 and bottom sample tap 1012;J=1,2,3, represent and sampled The order of product).
4) testing liquid and taken transudate water sample to configuration carry out hydrochemical analyse, draw transudate change of water quality bent Line.
The relevant technology contents do not addressed in aforesaid way is taked or uses for reference prior art to realize.
It should be noted that any equivalent replacement side under the teaching of this specification, done by those skilled in the art Formula, or substantially variant, all should be within protection scope of the present invention.

Claims (7)

1. a lateral sectional sampling original state clay ultrafiltration assay device, it is characterised in that: include ultrafiltration tester, described ultrafiltration Tester includes outer top cover, outer base and connects outer top cover and the sidewall of outer base, and outer top cover, outer base surround with sidewall Closed cavity, be provided with in closed cavity internal head cover, interior base, for be coated with undisturbed soil sample flexible silicon gum cover pipe and Perforated casing, described internal head cover is arranged on below outer top cover, is provided with the feed pathway connected, feed liquor in internal head cover and outer top cover Passage external axial compression Pressure gauge, described interior base is arranged on above outer base, is provided with exhalant canal, sets in outer base in interior base Having the water storage cavity connected with exhalant canal and the bottom sample tap being in communication with the outside by water storage cavity, internal head cover, interior base are with soft Property silica gel sheath circumference of cannon bone becomes undisturbed soil sample permeation chamber, perforated casing to be enclosed within the outside of flexible silicon gum cover pipe, in perforated casing and flexibility Between silica gel sleeve pipe formed confined pressure chamber, sidewall offers connection confined pressure chamber confined pressure hole, confined pressure hole external confined pressure Pressure gauge, The corresponding position of sidewall, perforated casing and flexible silicon gum cover pipe is provided with lateral sample tap, installs at lateral sample tap There is screwed pipe, sidewall and flexible silicon gum cover pipe are provided with the hickey suitable with screwed pipe, right on flexible silicon gum cover pipe The position of lateral sample tap should be provided with flexible filter screen.
One the most according to claim 1 lateral sectional sampling original state clay ultrafiltration assay device, it is characterised in that: described Lateral sample tap arranges 2~5, and along sidewall in being intervally arranged up and down.
One the most according to claim 1 lateral sectional sampling original state clay ultrafiltration assay device, it is characterised in that: described The bottom surface of internal head cover is provided with the first groove, places the first water filter plate in the first groove, and the end face of described interior base is provided with second Groove, places the second water filter plate in the second groove, is provided with top inner chamber between described intake tunnel and the first water filter plate, and water outlet is led to It is provided with end inner chamber between road and the second water filter plate, between described water filter plate and the upper and lower contact surface of undisturbed soil sample, is provided with steel gauze.
One the most according to claim 1 lateral sectional sampling original state clay ultrafiltration assay device, it is characterised in that: described Interior base and internal head cover are contacted with sidewall by the first O-ring seal respectively, and the second fluid sealant is passed through in described internal head cover upper surface Circle contact with outer top cover, described interior base lower surface is contacted with outer base by the 3rd O-ring seal, described outer top cover with Outer base is screwed respectively in sidewall upper and lower end face.
One the most according to claim 1 lateral sectional sampling original state clay ultrafiltration assay device, it is characterised in that: also wrap Including manual pressure device and from gravity pressue device, described manual pressure device includes reserving liquid tank, reserving liquid tank is provided with by The pumped well structure that in reserving liquid tank, the liquid hand of storage extrudes, is provided above liquid injection port in one end of reserving liquid tank;Described from Gravity pressue device includes base, top board and bearing plate, is provided with support column between base and top board, and described bearing plate is sheathed On the support columns, and can move up and down along support column, bearing plate be placed with and joins pressing plate, base is provided with hydraulic cavities, Being internally provided with pilot post in hydraulic cavities, pilot post is connected with bearing plate;Described manual pressure device arranges two altogether, respectively For axial compression manual pressure device and confined pressure manual pressure device, described arrange two altogether from gravity pressue device, respectively first From gravity pressue device and second from gravity pressue device, the liquid outlet of described axial compression manual pressure device is by the first hydraulic pressure even Adapter is with first from the hydraulic chamber into communication of gravity pressue device, and described first is steady by first from the hydraulic cavities of gravity pressue device Pressure outlet tube connects with feed pathway, and the liquid outlet of described confined pressure manual pressure device is by the second hydraulic connecting pipe and second certainly The hydraulic chamber into communication of gravity pressue device, described second passes through the second voltage stabilizing outlet tube from the hydraulic cavities of gravity pressue device and encloses The connection of pressure hole.
One the most according to claim 5 lateral sectional sampling original state clay ultrafiltration assay device, it is characterised in that: described Pumped well structure includes well body and pressure handle, and well body is hollow cylindrical structure, and the bottom of well body is by feed tube and reserving liquid tank Bottom connects, and the top of well body is provided with liquid outlet, and at the piston that is internally provided with of well body, it is reciprocal for described piston and drive The pressure handle of motion connects.
One the most according to claim 5 lateral sectional sampling original state clay ultrafiltration assay device, it is characterised in that: described Ultrafiltration tester arranges multiple, is all connected with a threeway, all ultrafiltration at the feed pathway and confined pressure hole of each ultrafiltration tester Threeway at the feed pathway of tester is interconnected, and the threeway at the confined pressure hole of all ultrafiltration testers connects the most mutually.
CN201610648632.8A 2016-08-10 2016-08-10 Lateral sectional sampling undisturbed clay ultrafiltration test device Active CN106248551B (en)

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CN110687017A (en) * 2019-09-04 2020-01-14 中国矿业大学 Device and method for measuring gas migration characteristic and expansion force of buffer material

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