CN208547635U - A kind of full-automatic Seep- Solidifying combined test device - Google Patents
A kind of full-automatic Seep- Solidifying combined test device Download PDFInfo
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- CN208547635U CN208547635U CN201821335372.XU CN201821335372U CN208547635U CN 208547635 U CN208547635 U CN 208547635U CN 201821335372 U CN201821335372 U CN 201821335372U CN 208547635 U CN208547635 U CN 208547635U
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- Prior art keywords
- seep
- automatic
- solidifying
- upper cover
- pressure
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Abstract
The utility model discloses a kind of full-automatic Seep- Solidifying combined test devices, belong to soil test research field.It mainly include permeability consolidometer, measuring device, loading device and computerized data acquisition system.Permeability consolidometer is made of pedestal, sleeve, sealing rubber ring, upper cover and water collection sheet；Measuring device includes dial gauge, waterproofing pressure sensor, camera and sensor for pore water pressure, passes through computerized data acquisition system real-time measurement test data.Loading device includes pedestal, support rod, connecting hinge, extension bar, scale pan and transmission rod, is pressurizeed by loading device to soil sample, consolidates soil sample.The present apparatus realizes vertical deformation in soil sample consolidation process, axle power, the real-time measurement of bottom pore pressure and displacement by automatic measurement mechanism, can Seep- Solidifying parameter that is quick, being accurately obtained the soil body.
Description
Technical field
The utility model relates to centrifugal modeling research field, in particular to a kind of full-automatic Seep- Solidifying Combined Trials dress
It sets.
Background technique
When being saturated cohesive soil area progress basic engineering construction, usually there is biggish sedimentation in ground or roadbed.It is right
The above problem makes reasonable assessment and prediction, need to the consolidation characteristics of the foundation soil in saturation cohesive soil area or subgrade soils with
Penetration Signature carries out experimental study.Traditional method is to do consolidation test with consolidation apparatus, obtains consolidation parameters, to study the soil body
Consolidation characteristics；Seepage tests are done with permeameter, obtain seepage parameters, to study the Penetration Signature of the soil body.But for saturation
It is the process coupled that cohesive soil, which is substantially consolidated with seepage flow, and consolidation test is separately done with seepage tests, can not be true
Reflect actual conditions, there are large errors with actual conditions for test result.Currently, existing testing crew utilizes improved consolidation
Instrument, the test intersected by varying head seepage flow with consolidation, to study the consolidation and seepage characteristic of soil, but consolidation apparatus used is more
For tri-coupling type high-pressure consolidation apparatus, since frictional force is excessive between its upper cover and consolidation apparatus inner wall, on added load and practical soil sample
Portion's pressure deviation is larger, obtained experimental result and physical presence large error, and measurement data is manually read entirely, precision
It is all lower with efficiency.It would therefore be highly desirable to be improved to existing apparatus, to reach quick, be accurately obtained seepage through soil mass and consolidation
The purpose of parameter.
Summary of the invention
Utility model aims to solve above-mentioned the deficiencies in the prior art and problems, provide one kind entirely certainly
Dynamic Seep- Solidifying combined test device.
Full-automatic Seep- Solidifying combined test device provided by the utility model, mainly include permeability consolidometer, loading unit,
Measurement portion and computerized data acquisition system, the permeability consolidometer is by pedestal, sleeve, upper cover, upper cover rubber seal and pedestal
Rubber seal is constituted, inside be followed successively by lower permeable stone, lower filter paper, soil sample, upper filter paper, upper dankness stone from the bottom to top and catchment
Plate；Pressure sensor is installed, for measuring soil sample top pressure, the data of pressure sensor between water collection sheet and upper cover
The aperture that line passes through upper cover is drawn, and aperture is sealed with sealing-plug；Upper cover is equipped with drainage hole, upper cover rubber ring fixing groove and pressure-bearing
Slot, drainage hole are connected with drainpipe, and water collection sheet is equipped with multiple gully-holes；Loading unit is designed using lever principle, including
Pedestal, support rod, connecting hinge, extension bar, scale pan and transmission rod, transmission rod bottom match with the pressure tank of upper cover, pass through
Power is transferred to upper cover by transmission rod；Measurement portion includes: the dial gauge for measuring soil sample vertical deformation, measurement soil sample top pressure
Pressure sensor, the U-shaped level of the liquid in the tube of measurement camera and measure the sensor for pore water pressure of permeameter bottom hydraulic pressure；Percentage
Table is fixed on dial gauge fixed frame, and camera is fixed on lens supporting structure, the exhaust outside sensor for pore water pressure and gas vent
Pipe is connected；By computerized data acquisition system to test data real-tune TT & C, the seepage parameters and consolidation ginseng of available soil sample
Number.
Preferably, the pressure sensor is waterproofing pressure sensor, is placed in the locating slot of water collection sheet center, most
Big waterproof pressure is 5MPa, precision 0.01MPa.
Preferably, two rows of gully-holes are symmetrically distributed on the water collection sheet, the water that soil sample flows out is pooled to row
Water hole, drainage hole and gully-hole internal diameter are 3 millimeters.
Preferably, the U-tube is connected by connector with drainpipe, and U-tube is transparent glass tube, and indicates scale
Line.The water being discharged in consolidation process is surveyed by U-tube, and then obtains soil body osmotic coefficient in consolidation process, and U-tube internal diameter
Greater than 1 millimeter less than 4 millimeters, on the one hand it is convenient for Rapid reading, on the other hand avoids capillary phenomenon.
Preferably, the pressure tank is located at upper cover center, makes soil sample top uniform force.
Preferably, the sleeve lining is smooth, lower part band edge, 3 screw holes is uniformly arranged on side, and threaded hole is interior spiral shell
Line, bottom are equipped with sleeve rubber seal fixing groove, wherein 61.8 millimeters of sleeve diameter, 100 millimeters of height, and 10 millimeters of wall thickness,
15 millimeters of lower part hem width, 10 millimeters of thickness, 6 millimeters of tapped bore
Preferably, 10 millimeters of the pedestal intermediate projections, convex portion diameter is consistent with sleeve diameter, is convenient for fixing sleeve
Cylinder, centre are equipped with gas vent, are controlled and are opened and closed by drain tap, for gas in remover before testing, after exhaust with
Sensor for pore water pressure is connected, and for measuring sample bottom pore water pressure, pedestal both sides are solid equipped with corresponding pedestal rubber seal
Determine slot and 3 base screw holes, sleeve and pedestal airtight connection are made by screw and pedestal rubber seal.
Preferably, the lens supporting structure can guarantee that camera is equal with U-tube concave meniscus with automatic lifting.
Preferably, the sleeve, pedestal, screw and loading unit, material are stainless steel, and upper cover and plate matter of catchmenting are
Organic glass, sample is not polluted by iron rust when guarantee test, also for the service life for increasing the device.
Compared with prior art, the utility model has the following beneficial effects: during the test, soil can be obtained simultaneously
The consolidation parameters and seepage parameters of sample；Soil sample top pressure has been measured by pressure sensor；Suitable for 10 millimeters to 40
The sample of millimeter different height；Computerized data acquisition system real-time measurement is utilized during test, avoids artificial error in reading, is tried
It is accurately reliable to test data；Device production is simple, at low cost, easy to operate, and test data is more conform with engineering reality.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model.
Fig. 2 upper cover and water collection sheet schematic longitudinal section.
Fig. 3 sleeve schematic longitudinal section.
Fig. 4 pedestal schematic longitudinal section.
Fig. 5 water collection sheet schematic top plan view.
It is identified in figure: 1- pedestal;2- pedestal;3- screw;4- upper cover rubber seal;4a- pedestal rubber seal; 5-
Upper dankness stone;Permeable stone under 5a-;The upper filter paper of 6-;Filter paper under 6a-;7- soil sample;8- upper cover;9- upper cover drainage hole;10- pressure passes
Sensor;13- drain tap;14- gas vent;16- sleeve;18- connector;21- supporting table;22- dial gauge fixed frame;23-
Dial gauge;24- support rod;25- sealing-plug;26- scale pan;27- transmission rod;28- connecting hinge;29- extension bar;30- camera
Fixed frame;31- sensor for pore water pressure;32- camera;33-U type pipe;34- computerized data acquisition system;35- upper cover rubber seal
Enclose fixing groove;35a- sleeve rubber seal fixing groove;35b- pedestal rubber seal fixing groove;38- telescope-srew hole;
38a- base screw hole;39- pressure tank;40- water collection sheet;41- gully-hole;42- drainpipe.
Specific embodiment
It is specific embodiment of the utility model below, and the technical solution of the utility model is retouched in conjunction with attached drawing
It states, but the utility model is not limited to this embodiment.
Embodiment
The embodiment is by taking the experiment on permeable solidity of 40 millimeters of saturation remodeling stickiness soil samples as an example, and experimental rig is referring to Fig. 1-figure
5.Experimental rig mainly includes permeability consolidometer, measurement portion, loading unit and computerized data acquisition system 34.Permeability consolidometer is the bottom of by
Seat 2, sleeve 16, upper cover 8, upper cover rubber seal 4 and pedestal rubber seal 4a are constituted, inside be followed successively by down from the bottom to top
Permeable stone 5a, lower filter paper 6a, soil sample 7, upper filter paper 6, upper dankness stone 5 and water collection sheet 40；Loading unit using lever principle design and
At, including pedestal 1, support rod 24, connecting hinge 28, extension bar 29, scale pan 26 and transmission rod 27, power is passed by transmission rod 27
It is handed to soil sample 7, consolidates soil sample 7,27 bottom of transmission rod matches with the pressure tank 39 of upper cover；Measurement portion include: dial gauge 23,
Pressure sensor 10, camera 32 and sensor for pore water pressure 31, dial gauge are fixed on dial gauge fixed frame 22, and camera 32 is fixed
On lens supporting structure 30, waterproof sensor for pore water pressure 10 is mounted between upper cover 8 and water collection sheet 40, by data line through upper cover
8 draw, and exit is sealed with sealing-plug 25, and water collection sheet 40 is equipped with gully-hole 41, by upper cover drainage hole 9 and drainpipe 42 and
Connector 18 is connected with U-tube, and sensor for pore water pressure 31 is connected with the overhanging water pipe of gas vent 14, and gas vent 14 is controlled by exhaust valve
Opening and closing, dial gauge 23, pressure sensor 10, camera 32 and sensor for pore water pressure 31 are connected with computer, pass through computerized data acquisition
System 34 is to test data real-tune TT & C；The reading of U-tube with a scale 33 measured in this way by camera 32 obtains the infiltration of soil sample
Saturating coefficient obtains the vertical deformation of soil sample by the reading of dial gauge 23, the axis pressure of soil sample is read by pressure sensor 10, is passed through
Sensor for pore water pressure 31 obtains pore water dissipation law.
Test process is as follows:
Step 1: preparing 1 40 millimeters of stainless steel cutting ring, inner surface smears one layer of silicone grease, convenient for soil sample from cutting ring
Freely skid off；
Step 2: with ready cutting ring sample sample 7, being then evacuated saturation in saturation bucket, be first evacuated 1 hour, so
Water filling is taken out after impregnating 24 hours afterwards；
Step 3: one layer of silicone grease is applied in 16 inner wall of sleeve, for reducing the frictional force between 16 inner wall of soil sample 7 and sleeve,
Pedestal rubber seal 4a is put into rubber seal fixing groove 35b, sleeve 16 is placed on pedestal 2, makes pedestal rubber seal
It is corresponding with sleeve rubber seal retention grooves 35a to enclose 4a, and telescope-srew hole 38 is corresponding with base screw hole 38a, by screw 3
It is inserted into screw hole, then tightens and guarantees pedestal 2 and 16 airtight connection of sleeve；
Step 4: being sequentially placed into the lower permeable stone 5a and lower filter paper of 10 millimeters of 61.8 millimeters thick of diameter in 16 bottom of sleeve
6a, then the topping-up into sleeve 16, suitable for reading by cutting ring alignment sleeve 16, opens drain tap 13, makes 7 free skating of soil sample
Enter in sleeve 16,16 inner air of sleeve will be extruded, and soil sample 7 closes drain tap 13 after reaching 16 bottom of sleeve, in soil
7 upper surface of sample is sequentially placed into the upper dankness stone 5 of 10 millimeters of filter paper 6 and 61.8 millimeters thick of diameter, and pressure sensor 10 is placed in
In 40 intermediate groove of water collection sheet, the then topped up with water in sleeve；
Step 5: upper cover rubber seal 4 is placed in upper cover rubber seal fixing groove 35, edge applies one layer of silicone grease,
On the one hand reduce frictional force, on the one hand increase airtightness, then U-tube 33 is connected with drainpipe 42 with connector 18, finally
Upper cover 8 is installed, and extra water and air is discharged from 33 one end of U-tube in sleeve 16, water in U-tube 33 is taken out with minute hand scalp acupuncture pipe
Out to 0 graduation mark, and kerosene sealing is dripped on liquid level, prevent the evaporation of water；
Step 6: dial gauge 23 being fixed on dial gauge fixed frame 22,23 lower part of dial gauge and 21 upper surface of supporting table
Contact, camera 32 are fixed on lens supporting structure 30, sensor for pore water pressure 31 are connected with 13 other end of drain tap, open
Drain tap 13 starts to add after examination then to dial gauge 23, pressure sensor 10, camera 32 and sensor for pore water pressure 31
It carries, for loading 100kPa；
Step 7: reading the consolidation parameters that can obtain soil sample by dial gauge 23, can be obtained by sensor for pore water pressure 31
It is read to soil sample bottom pore pressure dissipation situation by the available soil sample vertical pressure of pressure sensor 10 by camera 32
The infiltration coefficient of soil sample in available consolidation process.
The description of above-mentioned specific embodiment is merely to illustrate the utility model, rather than the power of limitation the utility model
Sharp protection scope.
Claims (9)
1. a kind of full-automatic Seep- Solidifying combined test device mainly includes permeability consolidometer, loading unit, measurement portion and computer
Data collection system, it is characterised in that: permeability consolidometer is close by pedestal, sleeve, upper cover, upper cover rubber seal and pedestal rubber
Seal constitute, inside be followed successively by lower permeable stone, lower filter paper, soil sample, upper filter paper, upper dankness stone and water collection sheet from the bottom to top；Collection
Pressure sensor is installed, the aperture that the data line of pressure sensor passes through upper cover is drawn, aperture sealing between water plate and upper cover；
Upper cover is equipped with drainage hole, upper cover rubber ring fixing groove and pressure tank, drainage hole and is connected with drainpipe, and water collection sheet is equipped with multiple collection
Water hole；Loading unit is designed using lever principle, including pedestal, support rod, connecting hinge, extension bar, scale pan and transmission rod,
Power is transferred to upper cover by transmission rod, transmission rod bottom matches with the pressure tank of upper cover；Measurement portion includes: that measurement soil sample is perpendicular
To the dial gauge of deformation, the pressure sensor for measuring soil sample top pressure, the U-shaped level of the liquid in the tube of measurement camera and
Measure the sensor for pore water pressure of permeameter bottom hydraulic pressure；Dial gauge is fixed on dial gauge fixed frame, and camera is fixed on camera
On fixed frame, sensor for pore water pressure is connected with the exhaust pipe outside gas vent；It is real-time to test data by computerized data acquisition system
Observing and controlling, the seepage parameters and consolidation parameters of available soil sample.
2. a kind of full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: the pressure sensing
Device is waterproofing pressure sensor, is placed in the locating slot of water collection sheet center, and maximum waterproof pressure is 5MPa.
3. a kind of full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: on the water collection sheet
Symmetrically it is distributed with two rows of gully-holes, 3 millimeters of gully-hole internal diameter.
4. full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: the U-tube is by connecing
Head is connected with drainpipe, and U-tube is transparent glass tube, and indicates graduation mark.
5. full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: the pressure tank is located at upper
Lid center.
6. full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: the sleeve lining light
Sliding, lower part band edge, side is equipped with screw hole, and bottom is equipped with sleeve rubber seal fixing groove.
7. full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: the pedestal intermediate projections
10 millimeters, convex portion diameter is consistent with sleeve diameter, and middle position is equipped with gas vent, and it is close that both sides are equipped with corresponding pedestal rubber
Seal fixing groove and base screw hole, screw connect pedestal and sleeve.
8. full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: the lens supporting structure
It can be with automatic lifting.
9. full-automatic Seep- Solidifying combined test device as described in claim 1, it is characterised in that: the sleeve, pedestal, spiral shell
Nail and loading unit, material are stainless steel, and upper cover and plate matter of catchmenting are organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335372.XU CN208547635U (en) | 2018-08-20 | 2018-08-20 | A kind of full-automatic Seep- Solidifying combined test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335372.XU CN208547635U (en) | 2018-08-20 | 2018-08-20 | A kind of full-automatic Seep- Solidifying combined test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208547635U true CN208547635U (en) | 2019-02-26 |
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ID=65426351
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821335372.XU Expired - Fee Related CN208547635U (en) | 2018-08-20 | 2018-08-20 | A kind of full-automatic Seep- Solidifying combined test device |
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| Country | Link |
|---|---|
| CN (1) | CN208547635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112834A (en) * | 2021-11-03 | 2022-03-01 | 中国电建集团华东勘测设计研究院有限公司 | Multifunctional soil column consolidation and permeation model test system |
-
2018
- 2018-08-20 CN CN201821335372.XU patent/CN208547635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112834A (en) * | 2021-11-03 | 2022-03-01 | 中国电建集团华东勘测设计研究院有限公司 | Multifunctional soil column consolidation and permeation model test system |
| CN114112834B (en) * | 2021-11-03 | 2023-11-17 | 中国电建集团华东勘测设计研究院有限公司 | Multifunctional soil column consolidation penetration model test system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190226 Termination date: 20190820 |