CN206496981U - A kind of full-automatic soil-water characteristic curve pressure plate apparatus - Google Patents
A kind of full-automatic soil-water characteristic curve pressure plate apparatus Download PDFInfo
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- CN206496981U CN206496981U CN201621315699.1U CN201621315699U CN206496981U CN 206496981 U CN206496981 U CN 206496981U CN 201621315699 U CN201621315699 U CN 201621315699U CN 206496981 U CN206496981 U CN 206496981U
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Abstract
The utility model discloses a kind of full-automatic soil-water characteristic curve pressure plate apparatus, it includes switch board (1), the axially loaded framework (2) that is connected with switch board (1) and balancing gate pit (3), and balancing gate pit (3) are connected with diffusion bubble flushing device (4)；Balancing gate pit (3) is located on the bottom plate of axially loaded framework (2), the sample in balancing gate pit (3) is carried out by the cylinder (7) on axially loaded framework (2) axially loaded；Diffusion bubble flushing device (4) is connected by pipeline with balancing gate pit (3), and switch board (1) is connected by micro-control unit with computer (36).The utility model reasonable in design, automaticity is high, the full process automatization control of soil-water characteristic curve test can be achieved, vertical net direct stress control can be provided, it is to avoid pressure room pressure is to axially loaded influence, while xial feed is applied using air pressure, stability is high, service life is long, and accuracy is high, has wide range of applications.
Description
Technical field
The utility model is related to a kind of full-automatic soil―structure interaction pressure plate apparatus, more particularly to one kind is added using air pressure
Carry the soil―structure interaction pressure plate test system of vertical force.
Background technology
The research of soil―structure interaction is an important content of unsaturated soil research, and it is primarily referred to as in unsaturated soil
Relation curve in the matric suction and soil of formation between moisture content or saturation degree, is embodied in matric suction soil under action body
Moisture holding capacity.It can effectively determine that unsaturation soil classifiction, Penetration Signature, diffusion are special by soil-water characteristic curve
Property, body strain etc., therefore occupied an important position in unsaturated soils theory.
Research finds that the factor of influence unsaturated soil soil―structure interaction has a lot, except the influence factor of the soil body itself
(soil body type, mineralogical composition, pore structure, initial aqueous rate, initial void ratio etc.) outside, includes the influence of extraneous factor,
Stress state, consolidation pressure, temperature as residing for the soil body etc., the soil that the influence of these factors is final to will reflect in unsaturated soil-
In terms of air-entry value, dehumidification rate and the residual water content of water characteristic curve.And the examination generally to unsaturated soil soil―structure interaction
Test research many using soil―structure interaction pressure plate apparatus, soil―structure interaction pressure plate apparatus is mainly consolidating for research unsaturated soil
Junction characteristic, and soil―structure interaction and its hysteresis quality of the soil body in moisture absorption and drying.
Therefore, for more accurate, the effective research for carrying out unsaturated soil characteristic, soil-water should be improved to a certain extent
The accuracy of the indices of indicatrix pressure plate apparatus.For the work in terms of the stress state and consolidation pressure residing for the soil body
With in terms of test apparatus, being then mainly reflected in loading method and axial direction of the test apparatus to sample axial force in process of the test
In terms of the stability of power loading.At present, in process of the test, loading of the soil―structure interaction pressure plate apparatus to axial force is main
It is the mechanical load mode by counterweight loading and Serve Motor Control, and these load modes all there are to a certain extent
Corresponding the drawbacks of.It is generally strain control such as by the soil―structure interaction pressure plate apparatus of the mechanical load mode of Serve Motor Control
The mode of system, often reaches that set stress value will need certain load time, this will influence vertically to a certain extent
The control of axle power, and the more difficult control of stability of mechanical load；And the influence that counterweight loading is vulnerable to human factor produces loading
The bias of bar and sample, and can not meet high pressure loading the need for.
By the Searches of Patent Literature, the spy that prior art focuses mostly in terms of the raising of instrument precision and test efficiency
Rope and improvement, and have ignored the improvement of the experiment automatized degree of soil―structure interaction, and controlling test complexity etc.,
For example：(1) a kind of pressure plate apparatus (Chinese Patent Application No. is 201110083551.5) that can directly determine soil sample Volume Changes,
Consider and change in process of the test with suction and influence of the Volume Changes of soil sample generation to its moisture content is tested there is provided one kind
During measure the volumetric pressure plate instrument apparatus of soil sample Volume Changes, improve the accuracy of experiment, but the device does not consider
The influence of Soil mass state, it is impossible to realize the test of soil―structure interaction under stress state；(2) one kind can direct saturated soil
The accurate control type pressure plate apparatus of suction of sample (Chinese Patent Application No. is 201210189656.3), it is contemplated that saturation degree and suction
Influence of the accuracy to soil―structure interaction experimental accuracy, add the saturation system and temperature control moisturizing dress of pressure plate apparatus
Put, and suction control system is improved, improve the accuracy of experiment, but its used flushing system operation is multiple
Miscellaneous, using buret measurement, it is necessary to which artificial naked eyes read displacement, precision is low, error is big, it is necessary to stay people on duty, also without reference to
Net normal stress load mode and design philosophy, it is impossible to consider the influence of stress state.(3) it is a kind of to measure soil-water characteristic curve
Double pressure plate instrument (Chinese Patent Application No. is 201310425541.4), it is contemplated that in experiment synchronism detection environment (temperature,
Humidity, dry and wet path and suction equalization time etc.) etc. influence, improve the accuracy that various sample under equal conditions is tested,
Test efficiency is improved, but the pressure plate apparatus mainly uses body to become pipe progress Volume Changes measurement to be washed away with bubble, and it is certainly
Dynamicization degree is relatively low, complex operation, need to stay that people is on duty, body becomes that pipe measurement accuracy is low, body becomes pipe internal moisture and easily evaporated, this
All it will will influence the accuracy of experiment to a certain extent a bit.
Utility model content
In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is：There is provided a kind of new soil-water feature bent
Line pressure plate instrument, can realize the stabilization of axial stress, accurate application, and can realize the Automatic Control of process of the test, work
Make more efficient, accuracy of measurement is higher, the deficiencies in the prior art can be overcome.
To achieve the above object, the utility model is adopted the following technical scheme that：
A kind of full-automatic soil―structure interaction pressure plate apparatus, the axially loaded frame that it includes switch board, is connected with switch board
Frame and balancing gate pit, balancing gate pit are connected with diffusion bubble flushing device；
Described switch board can be controlled to axially loaded framework and balancing gate pit；Described balancing gate pit is located at axially loaded
On the bottom plate of framework, the sample in balancing gate pit is carried out by the cylinder on axially loaded framework axially loaded；
Described diffusion bubble flushing device is connected by pipeline with balancing gate pit；
Described switch board is connected by micro-control unit (MCU embedded control systems) with computer.
Switch board control diffusion bubble flushing device washes away to the cavity of balancing gate pit bottom, the gas drained in cavity
Bubble.Described switch board both can individually control axial loading frame, balancing gate pit and diffusion bubble flushing device in process of the test,
Controlling test can be carried out by coupled computer again.
Preferably, above-described full-automatic soil―structure interaction pressure plate apparatus, described axially loaded framework
Including cylinder, load sensor and high-precision digital-display displacement transducer, apply certain atmospheric pressure to cylinder, and pass by loading
The atmospheric pressure applied is delivered on sample by the center-pole on sensor and balancing gate pit successively；
Described cylinder is arranged on the upper plate of axially loaded framework, and upper plate is fixed on lower shoe by pole,
And bottom plate is fixed on lower shoe；
Described cylinder bottom is provided with sensor connector, and sensor connector is connected with load sensor, and loading is passed
Sensor is connected with sensor loading head；
Locating piece is installed on described pole, the position of load sensor is can determine whether by locating piece.
Preferably, above-described full-automatic soil―structure interaction pressure plate apparatus, described balancing gate pit is located at axle
To on the bottom plate of loading frame, balancing gate pit include center-pole, center-pole seal receptacle, upper lid, glass side neck, T-shaped screw rod, base,
Ceramic tabletting, pottery clay plates and cavity；
Described upper lid is fixed on glass side neck, and center-pole passes through upper lid, and passes through center-pole seal receptacle and upper lid phase
Even, center-pole is provided with raised, the protruding parts formation sealing area of center-pole seal receptacle and center-pole；
Described pottery clay plates are located on the base of balancing gate pit, and are fixed by ceramic tabletting, pottery clay plates and balancing gate pit
Cavity is formed between base；
Balancing gate pit's superstructure and balancing gate pit that described upper lid, glass side neck, center-pole and center-pole seal receptacle is constituted
Base fixed, sealed by T-shaped screw rod.
Preferably, above-described full-automatic soil―structure interaction pressure plate apparatus, described sealing area passes through
Pneumatic tube is connected with the inside of balancing gate pit so that the air pressure in sealing area and balancing gate pit is equal, can offset pressure Indoor Air
Press to the active force of center-pole, so as to realize the control of vertical net direct stress in process of the test, improve the accurate of experiment measurement
Degree.
Preferably, above-described full-automatic soil―structure interaction pressure plate apparatus, described balancing gate pit top with
Switch board air pressure output end is connected, and balancing gate pit bottom is connected with switch board hydraulic pressure output end, by computer control pressure room
Air pressure uaWith hydraulic pressure uw, you can obtain suction s=ua-uw, so that the control to sample suction can be realized.
Preferably, above-described full-automatic soil―structure interaction pressure plate apparatus, described high-precision digital-display position
Displacement sensor is fixed on montant by displacement measurement plate and meter jaw, and montant is arranged on the upper lid of balancing gate pit, displacement measurement
Plate is fixed on sensor loading head.
Preferably, above-described full-automatic soil―structure interaction pressure plate apparatus, described diffusion bubble washes away
Device includes base, bubble trap, normally closed electronic valve, accurate hydraulic pressure sensor and exhaust bubble valve；Described bubble is collected
Device, normally closed electronic valve and accurate hydraulic pressure sensor are arranged on base, and funnel cavity and and funnel are offered in bubble trap
The funnel tubule that cavity bottom is connected, the bottom of funnel tubule by waterline respectively with normally closed electronic valve and accurate hydraulic pressure
Sensor is connected.
Preferably, above-described full-automatic soil―structure interaction pressure plate apparatus, described diffusion bubble washes away
Device is connected with switch board, and normally closed electronic valve is opened by switch board, passes water through the cavity in balancing gate pit below pottery clay plates and enters
Enter in the funnel cavity of diffusion bubble flushing device, and then discharge the bubble in cavity, improve the accuracy of test measurement.
It is compared with the prior art, the beneficial effects of the utility model are：
1st, the utility model can quickly and efficiently realize the loading of axial stress, so as to keep away using axial air pressure-loading
Exempt from eccentricity issues caused by the axial counterweight loading of prior art, and axial high pressure loading can be realized, practicality is stronger；
2nd, the utility model adopts computerized control matric suction and vertical net direct stress control, can be accurately, effectively real
The experimental study of the soil―structure interaction of unsaturated soil under existing different stress paths；
3rd, the utility model can avoid prior art pressure room pressure to xial feed using vertical net direct stress control
The influence of application, measurement result is more accurate.
4th, the utility model uses diffusion bubble flushing device, can avoid the gas produced in long-time process of the test reclaimed water
Influence to test measurement precision, measurement result is more accurate.
5th, the utility model can realize the full process automatization control of soil―structure interaction test, using the teaching of the invention it is possible to provide vertical net
Direct stress control, it is to avoid pressure room pressure to axially loaded influence, meanwhile, xial feed using air pressure application, stability
Higher, service life is long, and accuracy is high.And it is applicable to control the unsaturated soil consolidation examination of matric suction and vertical net direct stress
Test, and the moisture absorption of unsaturated soil under different stress, the soil―structure interaction of drying and its hysteresis can be studied
Brief description of the drawings
Fig. 1 is the structural representation of full-automatic soil―structure interaction pressure plate apparatus described in the utility model.
Fig. 2 is axial loading frame and pressure in full-automatic soil―structure interaction pressure plate apparatus described in the utility model
The structural representation of room.
Fig. 3 is the cross-sectional view of balancing gate pit described in the utility model.
Fig. 4 is the structural representation of diffusion bubble flushing device described in the utility model.
Embodiment
As shown in Figures 1 to 4, a kind of full-automatic soil―structure interaction pressure plate apparatus, it includes switch board 1 and switch board
1 connected axially loaded framework 2 and balancing gate pit 3, balancing gate pit 3 is connected with diffusion bubble flushing device 4；
Described switch board 1 can be controlled to axially loaded framework 2 and balancing gate pit 3；Described balancing gate pit 3 is located at axially
On the bottom plate of loading frame 2, the sample in balancing gate pit 3 is carried out by the cylinder 7 on axially loaded framework 2 axially loaded；
Described diffusion bubble flushing device 4 is connected by pipeline with balancing gate pit 3；
Described switch board 1 is connected by micro-control unit MCU embedded control systems with computer 36.
The control diffusion bubble of switch board 1 flushing device 4 washes away to the cavity 27 of the bottom of balancing gate pit 3, cavity 27 of draining
Interior bubble.Described switch board 1 both can individually control axial loading frame 2, balancing gate pit 3 and diffusion bubble in process of the test
Flushing device 4, can carry out controlling test by coupled computer again.
Above-described full-automatic soil―structure interaction pressure plate apparatus, described axially loaded framework 2 includes cylinder 7, lotus
Sensor 9 and high-precision digital-display displacement transducer 10 are retransmitted, applies certain atmospheric pressure to cylinder 7, and pass through the He of load sensor 9
The atmospheric pressure applied is delivered on sample by the center-pole 19 in balancing gate pit 3 successively；
Described cylinder 7 is arranged on the upper plate 5 of axially loaded framework 2, and upper plate 5 is fixed on bottom by pole 6
On plate 17, and bottom plate 16 is fixed on lower shoe 17；
The described bottom of cylinder 7 is provided with sensor connector 8, and sensor connector 8 is connected with load sensor 9, lotus
Sensor 9 is retransmitted with sensor loading head 14 to be connected；
Locating piece 15 is installed on described pole 6, the position of load sensor 9 is can determine whether by locating piece 15.
Above-described full-automatic soil―structure interaction pressure plate apparatus, described balancing gate pit 3 is located at axially loaded framework 2
Bottom plate 16 on, balancing gate pit 3 include center-pole 19, center-pole seal receptacle 20, upper lid 21, glass side neck 22, T-shaped screw rod 23, bottom
Seat 24, ceramic tabletting 25, pottery clay plates 26 and cavity 27；
Described upper lid 21 is fixed on glass side neck 22, and center-pole 19 passes through upper lid 21, and passes through center-pole seal receptacle
20 are connected with upper lid 21, and center-pole 19 forms sealing provided with projection, the protruding parts of center-pole seal receptacle 20 and center-pole 19
Region 28；
Described pottery clay plates 26 are located on the base 24 of balancing gate pit 3, and are fixed by ceramic tabletting 25, pottery clay plates 26 and pressure
Cavity 27 is formed between the base 24 of room 3；
The superstructure of balancing gate pit 3 that described upper lid 21, glass side neck 22, center-pole 19, center-pole seal receptacle 20 are constituted
Fixed, sealed by T-shaped screw rod 23 with the base 24 of balancing gate pit 3.
Above-described full-automatic soil―structure interaction pressure plate apparatus, described sealing area 28 by pneumatic tube 37 with
The inside of balancing gate pit 3 is connected so that sealing area 28 is equal with the air pressure in balancing gate pit 3, can air pressure pair in offset pressure room 3
The active force of center-pole 19, realizes the control of vertical net direct stress in process of the test.
Pottery clay plates 26 in above-described full-automatic soil―structure interaction pressure plate apparatus, described balancing gate pit 3 pass through full
With, water membrane can be formed on the surface of pottery clay plates 26 so that pottery clay plates 26 are permeable airtight, and then use axial translation technology,
Realize the suction control in process of the test.The described top of balancing gate pit 3 is connected with the air pressure output end of switch board 1, the bottom of balancing gate pit 3
It is connected with the hydraulic pressure output end of switch board 1, passes through the air pressure u in the control pressure room 3 of computer 36aWith hydraulic pressure uw, obtain suction s=
ua-uw, realize the control to sample suction.
Above-described full-automatic soil―structure interaction pressure plate apparatus, described high-precision digital-display displacement transducer 10 leads to
Cross displacement measurement plate 11 and meter jaw 12 is fixed on montant 13, montant 13 is arranged on the upper lid 21 of balancing gate pit 3, displacement measurement
Plate 11 is fixed on sensor loading head 14.
Above-described full-automatic soil―structure interaction pressure plate apparatus, described diffusion bubble flushing device 4 includes base
29th, bubble trap 31, normally closed electronic valve 33, accurate hydraulic pressure sensor 35 and exhaust bubble valve 34；Described bubble trap
31st, normally closed electronic valve 33 and accurate hydraulic pressure sensor 35 are arranged on base 29, and funnel cavity is offered in bubble trap 31
30 and the funnel tubule 32 that is connected with the bottom of funnel cavity 30, the bottom of funnel tubule 32 by waterline respectively with it is normally closed
Electronic valve 33 is connected with accurate hydraulic pressure sensor 35.
Above-described diffusion bubble flushing device 4, is controlled it by switch board 1 or computer, works as beginning
When bubble washes away, normally closed electronic valve 33 will be opened, and make the water of sufficient amount quickly through the sky of the lower section of pottery clay plates in balancing gate pit 3 26
In chamber 27, the bubble in the lower cavity 27 of pottery clay plates 26 is driven to be discharged out of the base 24 of balancing gate pit 3 discharge outlet, by normally closed electricity
Magnet valve 33 enters in the funnel cavity 30 of diffusion bubble flushing device 4, and then discharges the bubble in cavity 27, when funnel cavity 30
In liquid level rise when reaching certain height, accurate hydraulic pressure sensor 35, which is collected, feeds back to computer after water pressure, by soft
Part controller unit reaches dbjective state, improves the accuracy of experiment.
The method of testing for the full-automatic soil―structure interaction pressure plate apparatus that the utility model is provided is as follows：
Step one：Instrument lines are vented：The water injection of balancing gate pit 3 is operated repeatedly by switch board 1, instrument lines are carried out
Bleeding；
Step 2：Saturation pottery clay plates 26：By setting 5kPa water pressure to discharge the gas in the lower cavity 27 of pottery clay plates 26
Bubble, and injection is higher by the surface 10mm of pottery clay plates 26 water in ceramic tabletting 25, and balancing gate pit 3 is arranged on into axially loaded framework 2
Bottom plate 16 on, apply about 400kPa atmospheric pressure on the water surface, static placement unloads nebulizer gas pressure, and discharge pipe after 2 days, 2 days
Water in line, repeats above operating procedure 2 times, completes the saturation of pottery clay plates 26；
Step 3：Sample is installed：Sample is arranged on saturation pottery clay plates 26 as requested, after sample installation, led to
T-shaped screw rod 23 is crossed the base 24 of the superstructure of balancing gate pit 3 and balancing gate pit 3 is fixed, seals；
Step 4：Experiment is set：Just should only to the suction in process of the test, vertically by computer 36 according to testing program
Power and experiment end condition are configured, after accomplishing the setting up, proceed by experiment, computer is by automatic record process of the test
Data, and preliminary treatment is carried out to data；
Step 5：Diffusion bubble washes away, and opens normally closed electronic valve 33 by switch board 1, passes water through clay in balancing gate pit 3
The cavity 27 of the lower section of plate 26 enters in the funnel cavity 30 of diffusion bubble flushing device 4, and then discharges the bubble in cavity 27, punching
After the completion of brush, diffusion bubble flushing device 4 is closed.
Embodiment of the present utility model is these are only, it describes more specific and detailed, but can not therefore understand
For the limitation to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, not taking off
On the premise of the utility model design, various modifications and improvements can be made, these belong to protection of the present utility model
Scope.
Claims (8)
1. a kind of full-automatic soil―structure interaction pressure plate apparatus, it is characterised in that it includes switch board (1) and switch board (1)
Connected axially loaded framework (2) and balancing gate pit (3), balancing gate pit (3) are connected with diffusion bubble flushing device (4)；
Described switch board (1) can be controlled to axially loaded framework (2) and balancing gate pit (3)；Described balancing gate pit (3) is located at
On the bottom plate of axially loaded framework (2), the sample in balancing gate pit (3) is carried out by the cylinder (7) on axially loaded framework (2)
It is axially loaded；
Described diffusion bubble flushing device (4) is connected by pipeline with balancing gate pit (3)；
Described switch board (1) is connected by micro-control unit with computer (36).
2. full-automatic soil―structure interaction pressure plate apparatus according to claim 1, it is characterised in that described axial direction adds
Carrying framework (2) includes cylinder (7), load sensor (9) and high-precision digital-display displacement transducer (10),
Described cylinder (7) is arranged on the upper plate (5) of axially loaded framework (2), and upper plate (5) is fixed by pole (6)
In on lower shoe (17), and bottom plate (16) is fixed on lower shoe (17)；
Described cylinder (7) bottom is provided with sensor connector (8), sensor connector (8) and load sensor (9) phase
Even, load sensor (9) is connected with sensor loading head (14)；
Locating piece (15) is installed on described pole (6), the position of load sensor (9) is can determine whether by locating piece (15).
3. full-automatic soil―structure interaction pressure plate apparatus according to claim 1, it is characterised in that described balancing gate pit
(3) positioned at axially loaded framework (2) bottom plate (16) on, balancing gate pit (3) include center-pole (19), center-pole seal receptacle (20),
Upper lid (21), glass side neck (22), T-shaped screw rod (23), base (24), ceramic tabletting (25), pottery clay plates (26) and cavity (27)；
Described upper lid (21) is fixed on glass side neck (22), and center-pole (19) covers (21) through upper, and close by center-pole
Envelope seat (20) is connected with upper lid (21), and center-pole (19) is provided with projection, and center-pole seal receptacle (20) is convex with center-pole (19)
Go out position and form sealing area (28)；
Described pottery clay plates (26) are located on the base (24) of balancing gate pit (3), and fixed by ceramic tabletting (25), pottery clay plates (26)
Cavity (27) is formed between the base (24) of balancing gate pit (3)；
Described upper lid (21), glass side neck (22), center-pole (19), in the balancing gate pit (3) of center-pole seal receptacle (20) composition
The base (24) of portion's structure and balancing gate pit (3) is fixed by T-shaped screw rod (23), sealing.
4. full-automatic soil―structure interaction pressure plate apparatus according to claim 3, it is characterised in that described seal area
Domain (28) is connected by pneumatic tube (37) with the inside of balancing gate pit (3) so that the gas in sealing area (28) and balancing gate pit (3)
Pressure is equal, can offset pressure room (3) interior air pressure to the active forces of center-pole (19), realize vertical net direct stress in process of the test
Control.
5. full-automatic soil―structure interaction pressure plate apparatus according to claim 3, it is characterised in that described balancing gate pit
(3) top is connected with switch board (1) air pressure output end, and balancing gate pit (3) bottom is connected with switch board (1) hydraulic pressure output end, passes through
Air pressure u in computer (36) control pressure room (3)aWith hydraulic pressure uw, obtain suction s=ua-uw, realize the control to sample suction
System.
6. full-automatic soil―structure interaction pressure plate apparatus according to claim 2, it is characterised in that described high accuracy
Digital display displacement sensor (10) is fixed on montant (13) by displacement measurement plate (11) and meter jaw (12), and montant (13) is installed
On the upper lid (21) of balancing gate pit (3), displacement measurement plate (11) is fixed on sensor loading head (14).
7. full-automatic soil―structure interaction pressure plate apparatus according to claim 1, it is characterised in that described diffusion gas
Steep flushing device (4) include base (29), bubble trap (31), normally closed electronic valve (33), accurate hydraulic pressure sensor (35) and
Exhaust bubble valve (34)；Described bubble trap (31), normally closed electronic valve (33) and accurate hydraulic pressure sensor (35) is arranged on
On base (29), funnel cavity (30) and the funnel being connected with funnel cavity (30) bottom are offered in bubble trap (31)
Tubule (32), the bottom of funnel tubule (32) by waterline respectively with normally closed electronic valve (33) and accurate hydraulic pressure sensor
(35) it is connected.
8. full-automatic soil―structure interaction pressure plate apparatus according to claim 7, it is characterised in that described diffusion gas
Bubble flushing device (4) is connected with switch board (1), opens normally closed electronic valve (33) by switch board (1), passes water through balancing gate pit
(3) cavity (27) in below pottery clay plates (26) enters in the funnel cavity (30) of diffusion bubble flushing device (4), and then discharges
Bubble in cavity (27), improves the accuracy of test measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621315699.1U CN206496981U (en) | 2016-12-02 | 2016-12-02 | A kind of full-automatic soil-water characteristic curve pressure plate apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621315699.1U CN206496981U (en) | 2016-12-02 | 2016-12-02 | A kind of full-automatic soil-water characteristic curve pressure plate apparatus |
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| CN206496981U true CN206496981U (en) | 2017-09-15 |
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ID=59801305
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501093A (en) * | 2016-12-02 | 2017-03-15 | 南京泰克奥科技有限公司 | A kind of full-automatic soil-water characteristic curve pressure plate apparatus and its method of testing |
| CN111257201A (en) * | 2020-03-17 | 2020-06-09 | 湖南旺轩科技有限公司 | Full-automatic unsaturated soil, soil and water characteristic curve pressure plate instrument |
-
2016
- 2016-12-02 CN CN201621315699.1U patent/CN206496981U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501093A (en) * | 2016-12-02 | 2017-03-15 | 南京泰克奥科技有限公司 | A kind of full-automatic soil-water characteristic curve pressure plate apparatus and its method of testing |
| CN111257201A (en) * | 2020-03-17 | 2020-06-09 | 湖南旺轩科技有限公司 | Full-automatic unsaturated soil, soil and water characteristic curve pressure plate instrument |
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| GR01 | Patent grant |