CN206557215U - A kind of native waterline measurement apparatus for shortening the testing time - Google Patents
A kind of native waterline measurement apparatus for shortening the testing time Download PDFInfo
- Publication number
- CN206557215U CN206557215U CN201720292853.6U CN201720292853U CN206557215U CN 206557215 U CN206557215 U CN 206557215U CN 201720292853 U CN201720292853 U CN 201720292853U CN 206557215 U CN206557215 U CN 206557215U
- Authority
- CN
- China
- Prior art keywords
- clay plates
- pottery clay
- air
- sample box
- native
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of native waterline measurement apparatus for shortening the testing time.It includes developing room, ground sample box is provided with the developing room, the upper and lower ends of the ground sample box are provided with pottery clay plates, and the surrounding of ground sample box is provided with air-pressure chamber, the upper and lower ends of developing room are connected with volume/pressure controller, and air pressure controller is provided with air-pressure chamber.A kind of native waterline measurement apparatus for shortening the testing time that the utility model is provided, by designing a kind of new sample box, solve the problem of testing time is longer in current axial translation technology, the matric suction testing experiment time can be greatly shortened by the device, the operating efficiency in humidification method and the test of dehumidification method is improved.
Description
Technical field
The utility model is related to a kind of native waterline measurement apparatus for shortening the testing time, belongs to Rock And Soil e measurement technology neck
Domain.
Background technology
The method of test soil-water characteristic curve has filter paper method, tensometer test, electricity/thermal conductivity sensors, humidity control at present
Preparation method and axial translation technology etc..The several method main distinction is that the matric suction scope tested is different.Filter paper method tests base
Matter suction force range is in 1000~500000kPa, and tensometer test scope is smaller, and general measure scope is in 1~100kPa, electricity/heat
Conduction sensor test scope is general in 100~400kPa, and humid control method test scope is put down in 4000~600000kPa, axle
The test scope of shifting technology is 0~1500kPa.In numerous method of testings, axial translation technology due to its is simple to operate and balance when
Between be easy to control and obtain relatively broad use.
The current main test device of axial translation technology is exactly pressure plate apparatus, and pressure plate apparatus is mainly by balancing gate pit, source of the gas, clay
Plate, outlet pipe and pressure regulating valve etc. are constituted.Test process is obtained pair by applying predetermined pressure to the sample in cutting ring
The matric suction value answered.But this method is in testing, the air pressure applied is needed from the top of cutting ring sample slowly by sample
Matric suction balance is can reach by the stable rear of certain time afterwards, for conventional humidification method and dehumidification method, sample
Dehydration and water absorption course depend on whole sample poised state.Water i.e. at the top of sample needs could be from by whole sample
Sample bottom is discharged, and water during moisture absorption at the top of sample needs the height for undergoing whole sample to reach poised state, this mistake
Journey considerably increases the test period in pressure plate apparatus test.
Utility model content
In view of this, the utility model provides a kind of native waterline measurement apparatus for shortening the testing time, passes through design
A kind of new sample box, solves the problem of testing time is longer in current axial translation technology, can be greatly shortened by the device
The matric suction testing experiment time, improve the operating efficiency in humidification method and the test of dehumidification method.
The utility model solves above-mentioned technical problem by following technological means：
A kind of native waterline measurement apparatus for shortening the testing time of the present utility model, it includes developing room, the flushing
Room is in close contact with ground sample box, and the upper and lower ends of the ground sample box are provided with pottery clay plates, the surrounding of ground sample box
Air-pressure chamber is provided with, the rear and front end of developing room is connected with volume/pressure controller, and air-pressure controlling is provided with air-pressure chamber
Device.
The pottery clay plates are high air-entry value pottery clay plates, have and are set on two kinds of specifications and models of 5bar and 15bar, pottery clay plates perisporium
There is sealing ring, pottery clay plates are in sealing contact by sealing ring and air-pressure chamber internal edge, and pottery clay plates retaining ring is provided with pottery clay plates, make pottery
The inner side of native plate retaining ring is brought into close contact by fluid sealant with pottery clay plates, and outside is brought into close contact by sealing ring with air-pressure chamber side wall,
The first inlet and outlet pipe is provided with the pottery clay plates.
Pottery clay plates bottom is provided with the second inlet and outlet pipe.
The ground sample box is that passage is provided with cylinder shape structure, ground sample box, and ground sample box passes through logical
Stomata is connected with air-pressure chamber, and the upper and lower ends of ground sample box are provided with o-ring groove, and sealing ring is stuck in o-ring groove.
The beneficial effects of the utility model：
By changing Tu Shuite in a kind of native waterline measurement apparatus for shortening the testing time of the present utility model, the present invention
The structure of sample box in curve test is levied, the form that pottery clay plates are set simultaneously up and down is utilized so that the water in sample is in air pressure
Power effect is lower to be discharged simultaneously from the top and bottom of sample, shortens the drainage path in sample and enters water route (dehumidification
Process draining, humidification process water inlet).Test examination used can be greatly shortened by the soil-water characteristic curve of the device to test sample
The time is tested, another outstanding feature of the device is can to select various sizes of sample box according to the specific requirement of experiment,
Meet the test request of different-grain diameter sample.And superiority of the device in testing large sample soil-water characteristic curve more shows
Write.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the structural representation of the utility model pottery clay plates.
Fig. 3 is the structural representation of the utility model pottery clay plates bottom.
Fig. 4 is the utility model ground sample box structural representation.
Embodiment
The utility model is described in detail below with reference to accompanying drawing, as shown in Fig. 1,2,3 and 4：The one of the present embodiment
The native waterline measurement apparatus of testing time can be shortened by planting, and it includes developing room 1, and the developing room 1 closely connects with ground sample box 4
Touch, the upper and lower ends of the ground sample box 4 are provided with pottery clay plates 2, and the surrounding of ground sample box 4 is provided with air-pressure chamber 3, rinse
The rear and front end of room 1 is connected with volume/pressure controller 5, and air pressure controller 6 is provided with air-pressure chamber 3.
The pottery clay plates 2 are high air-entry value pottery clay plates, have and are set on two kinds of specifications and models of 5bar and 15bar, the perisporium of pottery clay plates 2
Sealing ring 7 is equipped with, pottery clay plates 2 are in sealing contact by sealing ring 7 and the internal edge of air-pressure chamber 3, and pottery clay plates are provided with pottery clay plates 2
Retaining ring 8, the inner side of pottery clay plates retaining ring 8 is brought into close contact by fluid sealant with pottery clay plates 2, and outside passes through sealing ring 7 and the side of air-pressure chamber 3
Wall is brought into close contact, and the first inlet and outlet pipe 9 is provided with the pottery clay plates 2.
The bottom of pottery clay plates 2 is provided with the second inlet and outlet pipe 10.
The ground sample box 4 is that passage 11 is provided with cylinder shape structure, ground sample box 4, and ground sample box 4 leads to
Cross passage 11 to connect with air-pressure chamber 3, the upper and lower ends of ground sample box 4 are provided with o-ring groove 12, and sealing ring 7 is stuck in close
In seal groove 12.
As shown in fig. 1：The exhaust work and soil-water characteristic curve that developing room 1 is substantially carried out installing before sample were tested
In exhaust work in journey, test process in developing room all the time be in water-saturated state, in test function be draining (dehumidification) and to
(humidification) is fed water in sample；Pottery clay plates 2 have two kinds of specifications and models of 5bar and 15bar, and different phase need are tested according to matric suction
Select the pottery clay plates of different size；The main sample box for passing through the air pressure regulated and controled in advance in air-pressure chamber of air-pressure chamber 3
The passage of surrounding is acted in soil sample；, it is necessary to by the demoulding after the completion of the soil sample of ground sample box 4 system of being cut in the cutting ring of customization
Processing has in the special cutting ring of passage 11 around being placed into, it is ensured that the air for having pressure can be entered in sample by passage
Portion；Volume/pressure controller 5 is mainly used in applying appropriate pore water pressure in exhaust and matric suction test in experiment,
The water yield in soil sample can be monitored in testing simultaneously, it is stable it is considered that under the stage pressure according to water yield in the scheduled time
Matric suction has reached poised state；Air pressure controller 6, is mainly adjusted to pressure set in advance by external source air pressure
Value, the controller is provided simultaneously with pressure stabilization function.
As shown in Figure 2：Sealing ring 7 on pottery clay plates 2, sealing ring 7 herein is mainly used in the outside pottery of sealing pottery clay plates 2
Native plate retaining ring 8 and the EDGE CONTACT band of air-pressure chamber 3, it is ensured that the sealing of the seam crossing；The main function of pottery clay plates retaining ring 8 is inner side
It is brought into close contact by fluid sealant with pottery clay plates 2, outside is brought into close contact by sealing ring 7 with the side wall of air-pressure chamber 3, and then ensure that pottery
The sealing of native plate 2 and the side wall of air-pressure chamber 3；First inlet and outlet pipe 9 is mainly used in the draining of sample and intake tunnel in experiment.
As shown in Figure 3：The bottom of pottery clay plates 2 is provided with the second inlet and outlet pipe 10, the design of the second inlet and outlet pipe 10
Predominantly ensure to drain the air of the bottom of pottery clay plates 2 only, it is ensured that the bottom of pottery clay plates 2 is without air in test；Pass through in experiment
Two inlet and outlet pipes 10 drain the air of pottery clay plates bottom only, after exhaust terminates, to ensure that developing room 1 is in water-saturated state,
5-10kPa precompression can be applied.
As shown in Figure 4：Ground sample box 4 is to be provided with passage 11 on cylinder shape structure, ground sample box 4, is ventilated
Hole 11 is the passage between air-pressure chamber 3 and sample in Fig. 1, and air pressure can be applied on sample by the passage, ground sample
The upper and lower ends of box 4 are provided with o-ring groove 12, and sealing ring 7 is stuck in o-ring groove 12.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (4)
1. a kind of native waterline measurement apparatus for shortening the testing time, it is characterised in that：Including developing room (1), the developing room
(1) it is in close contact with ground sample box (4), the upper and lower ends of the ground sample box (4) are provided with pottery clay plates (2), ground examination
The surrounding of sample box (4) is provided with air-pressure chamber (3), and the upper and lower ends of developing room (1) are connected with volume/pressure controller (5), air pressure
Air pressure controller (6) is provided with room (3).
2. a kind of native waterline measurement apparatus for shortening the testing time according to claim 1, it is characterised in that：The pottery
Native plate (2) is high air-entry value pottery clay plates, has and is provided with sealing ring on two kinds of specifications and models of 5bar and 15bar, pottery clay plates (2) perisporium
(7), pottery clay plates (2) are in sealing contact by sealing ring (7) and air-pressure chamber (3) internal edge, and pottery clay plates are provided with pottery clay plates on (2)
Retaining ring (8), the inner side of pottery clay plates retaining ring (8) is brought into close contact by fluid sealant with pottery clay plates (2), outside by sealing ring (7) with
Air-pressure chamber (3) side wall is brought into close contact, and the first inlet and outlet pipe (9) is provided with the pottery clay plates (2).
3. a kind of native waterline measurement apparatus for shortening the testing time according to claim 1, it is characterised in that：Pottery clay plates
(2) bottom is provided with the second inlet and outlet pipe (10).
4. a kind of native waterline measurement apparatus for shortening the testing time according to claim 1, it is characterised in that：The rock
Soil sample box (4) is that passage (11) is provided with cylinder shape structure, ground sample box (4), and ground sample box (4) passes through ventilation
Hole (11) is connected with air-pressure chamber (3), and the upper and lower ends of ground sample box (4) are provided with o-ring groove (12), sealing ring (7) card
In o-ring groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292853.6U CN206557215U (en) | 2017-03-24 | 2017-03-24 | A kind of native waterline measurement apparatus for shortening the testing time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292853.6U CN206557215U (en) | 2017-03-24 | 2017-03-24 | A kind of native waterline measurement apparatus for shortening the testing time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206557215U true CN206557215U (en) | 2017-10-13 |
Family
ID=60015882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720292853.6U Active CN206557215U (en) | 2017-03-24 | 2017-03-24 | A kind of native waterline measurement apparatus for shortening the testing time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206557215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680480A (en) * | 2018-04-18 | 2018-10-19 | 同济大学 | A kind of unsaturation coarse-grained soil permeameter and its test method |
-
2017
- 2017-03-24 CN CN201720292853.6U patent/CN206557215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680480A (en) * | 2018-04-18 | 2018-10-19 | 同济大学 | A kind of unsaturation coarse-grained soil permeameter and its test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106092773B (en) | The Soil Direct Shear experimental rig and method of ringing are impregnated-are air-dried in a kind of simulation | |
| CN105891446B (en) | A kind of soil expansion multi-parameter experimental rig simulated immersion and air-dry ringing | |
| CN206192785U (en) | Native seepage flow of saturation and creep coupling triaxial test device | |
| CN209322691U (en) | A kind of filters pressing sludge dehydration device | |
| CN204649538U (en) | Rock three axle acoustic emission experiment device under a kind of confined pressure, hole press strip part | |
| CN102928570B (en) | Sealing device for gas-containing coal sample used under triaxial compression experiment conditions | |
| CN105865685A (en) | Soil expansion stress test device capable of simulating immersion-air drying cyclic action | |
| CN102944476B (en) | Method for triaxial compression test in soil body water saturation-drainage cycle and device | |
| CN105445168A (en) | Simulation test device and method for pore water pressure of asphalt pavement | |
| CN204613071U (en) | Water supply installation of pavement material permeability test system | |
| CN206557215U (en) | A kind of native waterline measurement apparatus for shortening the testing time | |
| CN104730223B (en) | Volume change considering expansive soil SWCC curve testing apparatus and volume change considering expansive soil SWCC curve testing method | |
| CN206876456U (en) | A kind of device for preparing saturation soil sample under an increased pressure | |
| CN206906209U (en) | A kind of radial penetration experimental provision for being used to evaluate soil body radial penetration characteristic | |
| CN203838033U (en) | Salt spray corrosion testing box | |
| CN205607820U (en) | Flexible wall infiltration appearance that measurable body becomes | |
| CN105717026A (en) | Coal rock permeability experiment system with adjustable outlet pressure as well as method | |
| CN109100259A (en) | A kind of shale gas generation resolver | |
| CN201607312U (en) | Device for detecting leakage performance of motor valve of gas meter | |
| CN205749066U (en) | A kind of preparation facilities of geotechnological three axle sand samples | |
| CN204740163U (en) | Test device of accurate preparation sand sample | |
| CN206638668U (en) | A kind of characteristic curve of soil moisture measurement apparatus | |
| CN102944660B (en) | A kind of big scale coal gas adsorption-desorption simulation experiment system | |
| CN207600824U (en) | A kind of soil sample humidifying device for surveying body change | |
| CN206496981U (en) | A kind of full-automatic soil-water characteristic curve pressure plate apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |