CN205484329U - Temperature control soil swelling appearance - Google Patents
Temperature control soil swelling appearance Download PDFInfo
- Publication number
- CN205484329U CN205484329U CN201620210771.8U CN201620210771U CN205484329U CN 205484329 U CN205484329 U CN 205484329U CN 201620210771 U CN201620210771 U CN 201620210771U CN 205484329 U CN205484329 U CN 205484329U
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- China
- Prior art keywords
- temperature
- wall
- water container
- top cover
- soil
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Abstract
The utility model provides a temperature control soil swelling appearance, fixes on flourishing water receptacle including flourishing water receptacle, top cap, displacement collection system and temperature control system, top cap. Flourishing water receptacle includes base and outer wall, and this outer wall is sandwich structure, displacement collection system includes axial displacement sensor, wire and data acquisition instrument, temperature control system includes silicon rubber electric heat piece, wire, temperature controller and temperature sensor. The utility model discloses except the function that possesses conventional soil swelling appearance, still realized the accurate control to the experimental temperature through temperature control system, the swelling test of the soil body under the different temperatures can carry out, and realized automated collection, the data of surveying accuracy to the soil body in the in -process volume expansion volume of soaking.
Description
Technical field
This utility model belongs to Geotechnical Engineering soil test technique field, is specifically related to a kind of temperature and controls soil swelling instrument, is suitable for
Swell increment is increased in the soil body measured under different temperatures volume during immersion.
Background technology
Under field conditions (factors), there is an initial temperature field in the soil body self, temperature gradually changes along the increase of the soil body degree of depth,
And then have influence on the engineering properties of the soil body.And we are when using conventional soil dilatometer to measure the swell increment of cohesive soil, past
Carrying out toward under conditions of room temperature, have ignored the impact of temperature, the swell increment finally recorded is inaccurate, can not expire
The needs of foot Practical Project.Meanwhile, when using traditional dilatometer that cohesive soil swell increment is measured, need artificially every
2h surveys and counts Acquisition Instrument once, until twice reading difference is stable less than expanding during 0.01mm, and inefficiency, test
Error is the biggest.
Summary of the invention
For defect and the deficiency of above-mentioned prior art, this utility model provides a kind of temperature to control soil swelling instrument, it is possible to reality
Test temperature accurately control and measure, carry out the soil expansion rate test under different temperatures；Certainly to soil expansion amount real time data simultaneously
Dynamicization gathers, and surveyed data are accurate, solves the shortcoming that swell increment can not be measured continuously and automatically record, error is bigger.
This utility model is achieved through the following technical solutions above-mentioned purpose: a kind of temperature controls soil swelling instrument, including water container,
Top cover, temperature control system and displacement acquisition system.Concrete structure and annexation be:
Described top cover is fixed on water container.
Described water container includes base, outer wall and support with adjustable, and base welds with outer wall, and base has scalable and props up
Seat, outer wall is connected with temperature controller by wire.
Described temperature control system includes silicone rubber electric heating piece, temperature sensor, wire and temperature controller, described silicone rubber
Electric heating piece is arranged in outer wall interlayer, and temperature sensor is fixed on top cover by nut, and one end of temperature sensor is placed in and is filled with water
In water in container, the other end is connected with temperature controller by wire, and temperature controller connects power supply.
Described displacement control system includes that shaft position sensor, wire and data collecting instrument, described shaft position sensor pass through
Nut is fixed on the central authorities of top cover, and shaft position sensor one end contacts with pad top, and the other end passes through wire and data acquisition
Collection instrument is connected, and data collecting instrument connects power supply, the axial displacement of the pad in data collecting instrument automatic acquisition and recording process of the test
Change.
Described outer wall is sandwich, is provided with layer of glass outside outer wall.
Described silicone rubber electric heating piece is the film like electrothermal device of soft yieldable, is uniformly close to the interior of water container outer wall interlayer
On wall.
In described base, waterflood path is set, by waterflood path toward water container water filling.
Described top cover is fixedly connected on water container outer wall by fixing bolt, and top cover arranges air bleeding valve, and top cover central authorities are fixed
Being provided with shaft position sensor, side is fixedly installed temperature sensor.
Described air bleeding valve connection water container inside and extraneous air, keep atmospheric equilibrium, is conducive to passing through waterflood path during experiment
Toward water container internal water flooding, avoid compressing, during cohesive soil water-swellable, the error that inner air causes simultaneously.
With multiple holes on described pad, in order to the bubble discharge during swell deformation of expansive soil encountered with water.
Described cap base is connected by standing screw with outer wall end face, the circular hole of the circular hole of top cover surrounding and outer wall surrounding one a pair
Should.
Described water container base central authorities are provided with annular tank, annular tank is placed permeable stone, permeable stone is placed cutting ring, ring
Cutter is internal is soil sample；One retaining ring is set outside permeable stone and cutting ring, prevents from expanding；Another lead ring is placed, by only spiral shell on cutting ring
Bar is fixed on base；Placing pad in soil sample, pad top contacts with shaft position sensor one end.
Prominent effect of the present utility model is:
1, owing to being provided with temperature control system, it is achieved that accurately controlling and measuring experimental temperature, it is possible in different temperatures
Under carry out cohesive soil swelling rate test.
2, owing to being provided with displacement acquisition system, it is achieved that DATA REASONING and the automatization of collection, every during decreasing measurement
The triviality of 2h reading, improves work efficiency, and surveyed data is accurate.
3, in order to make soil sample entirety thermally equivalent, uniformly it is close to silicone rubber electric heating piece at water container outer wall, has been effectively ensured and has added
The uniformity of heat.
4, in order to prevent scattering and disappearing of heat in water container, water container outer wall is provided with sandwich, and arranges at outer wall
Glass fibre, is the most also provided with top cover at water container top, effectively prevents scattering and disappearing of heat in water container.
Accompanying drawing explanation
Fig. 1 is the structural representation that temperature described in the utility model controls soil swelling instrument；
Fig. 2 is the erection sequence schematic diagram that temperature described in the utility model controls soil swelling instrument.
Wherein: 1-air bleeding valve, 2-top cover, 3-screw rod, 4-outer wall, 5-glass fibre, 6-lead ring, 7-cutting ring, 8-silicone rubber
Electric heating piece, 9-retaining ring, 10-base, 11-support with adjustable, 12-pad, 13-soil sample, 14-permeable stone, the axial displacement of 15-
Sensor, 16-temperature sensor, 17-wire, 18-data collecting instrument, 19-temperature controller, 20-screw rod, 21-water injection pipe
Road.
Detailed description of the invention
Below by way of drawings and Examples, the technical solution of the utility model is described further.
As shown in Figure 1 to Figure 2, temperature described in the utility model control soil swelling instrument, including water container, top cover 2,
Displacement acquisition system and temperature control system.Concrete structure and annexation be:
Described water container includes base 10, outer wall 4 and support with adjustable 11；Base 10 welds with outer wall 4, base 10
Under support with adjustable 11 is set, it is ensured that instrument level；Outer wall 4 is sandwich, and silicone rubber electric heating piece 8 is arranged at outer wall 4 and presss from both sides
In layer, and it is connected with temperature controller 19 by wire 17；Outer wall 4 is outside arranges layer of glass 5, prevents from being filled with water
In container, heat scatters and disappears.
Described top cover 2 is arranged on water container, is fixedly connected on water container outer wall 4 by 3 fixing bolts 3；Top cover
One air bleeding valve 1 is set on 2；Central authorities are fixedly installed a shaft position sensor 15, and one end contacts with pad 12 top, another
End is connected with data collecting instrument 18 by wire 17；Top cover 2 periphery is fixedly installed a temperature sensor 16, and one end is placed in Sheng
In water container, the other end is connected with temperature controller 19 by wire 17；Pass through with outer wall 4 end face bottom described top cover 2
Standing screw 3 connects, wherein, and the circular hole of top cover 2 surrounding and the circular hole one_to_one corresponding of outer wall 4 surrounding.
Described temperature control system includes silicone rubber electric heating piece 8, temperature sensor 16, wire 17 and temperature controller 19；Institute
The silicone rubber electric heating piece 8 stated temperature within water container changes provides thermal source, arranges around outer wall 4, its internal resistance silk
Two ends be connected with temperature controller 19 by wire 17；Temperature sensor 16 is fixed on top cover 2 by a hold-doun nut,
Its one end is placed in the water in water container, and the other end is connected with temperature controller 19 by wire 17；Temperature controller 19
Connecing power supply, its range of error is ± 0.5 DEG C, it is possible to accurately control the water temperature within water container.
Described displacement control system includes shaft position sensor 15, wire 17 and data collecting instrument 18；Shaft position sensor
15 are fixed on top cover 2 central authorities by a hold-doun nut, and one end contacts with pad 12 top, and the other end is by wire 17 and number
It is connected according to Acquisition Instrument 18；Data collecting instrument 18 connects power supply, it is possible to the axle of the pad 12 in acquisition and recording process of the test automatically
To change in displacement.
Water container base 10 central authorities arrange annular tank, and tank is placed permeable stone 14, and permeable stone 14 is placed cutting ring 7,
Cutting ring 7 is internal is soil sample 13；Permeable stone 14 and cutting ring 7 outside arrange a retaining ring 9, prevent other swollen；Another is placed on cutting ring
Lead ring 6, is fixed on base 10 by 3 screw rods 20；Pad 12, pad 12 top and axial displacement is placed in soil sample 13
Sensor 15 one end contacts.
Concrete operation method is as follows:
1, preparation before experiment: preparing experiment is native, cut the auxiliary materials such as soil cutting ring 7, various sensor components, somascope
The each parts of device are the most normal；With cutting soil cutting ring 7 preparation experiment soil sample 13, soil sample is also positioned over climatic chamber by equating two sides
168h；By another temperature control water container, pure water is heated to the water temperature of experiment setting.
2, test specimen is installed: place retaining ring 9, permeable stone 14 in water container, by the cutting ring 7 with soil sample from constant temperature and humidity
Case takes out and loads in retaining ring 9；Then lead ring 6 is placed on cutting ring 7, and gently twists pressing with 3 screw rods 20, consolidate
Due to base 10；Finally pad 12 is placed on soil sample 13 surface；Finally by screw rod 3, top cover 2 will be fixed on water container
On, make bottom shaft position sensor 15 with pad 12 top contact；
3, open air bleeding valve 1, be heated to the pure water of set water temperature by filling pipe 21 to water container injection, made the water surface
It is held in soil sample apparent height to flush, or makes the water surface exceed soil sample 5mm by geotechnique's rule of operation；Open temperature controller 19 simultaneously
On and off switch and arrange experiment temperature required, temperature controller 19 sends the instruction of temperature makes it open to silicone rubber electric heating piece 8
Beginning heating, the temperature of water in heated water container is tested in temperature sensor simultaneously 16, when temperature reaches predetermined temperature,
Temperature sensor 16 detects and sends a return signal to temperature controller 19, and temperature controller 19 is again to silicone rubber electric heating
Sheet 8 sends the signal stopping heating, thus gets to the temperature constant purpose at predetermined temperature, thus, on temperature controller 19
Temperature display will be constant at certain value；
4, after water filling, data collecting instrument 18 is opened, be set to every 2h automatic data collection once, after soil sample is absorbed water
Swell increment automatically gather, until twice reading difference is stable less than expanding during 0.01mm, i.e. experiment terminates.
The description of above-described embodiment is to be convenient for people to understand and application this utility model.Protection domain of the present utility model is not implemented
Example is limited.Within anyone improvement making this utility model and amendment are regarded as this utility model protection domain.
Claims (9)
1. temperature controls a soil swelling instrument, including water container, top cover, temperature control system and displacement acquisition system, it is characterised in that concrete structure and annexation be:
Described top cover is fixed on water container,
Described water container includes base, outer wall and support with adjustable, and base welds with outer wall, and base has support with adjustable, and outer wall is connected with temperature controller by wire,
Described temperature control system includes silicone rubber electric heating piece, temperature sensor, wire and temperature controller, described silicone rubber electric heating piece is arranged in outer wall interlayer, temperature sensor is fixed on top cover by nut, one end of temperature sensor is placed in the water in water container, the other end is connected with temperature controller by wire, temperature controller connects power supply
Described displacement control system includes shaft position sensor, wire and data collecting instrument, described shaft position sensor is fixed on the central authorities of top cover by nut, shaft position sensor one end contacts with pad top, the other end is connected with data collecting instrument by wire, data collecting instrument connects power supply, the axial change in displacement of the pad in data collecting instrument automatic acquisition and recording process of the test.
Temperature the most according to claim 1 controls soil swelling instrument, it is characterised in that described outer wall is sandwich, is provided with layer of glass outside outer wall.
Temperature the most according to claim 1 controls soil swelling instrument, it is characterised in that: described silicone rubber electric heating piece is the film like electrothermal device of soft yieldable, is uniformly close on the inwall of water container outer wall interlayer.
Temperature the most according to claim 1 controls soil swelling instrument, it is characterised in that arrange waterflood path in described base, by waterflood path toward water container water filling.
Temperature the most according to claim 1 controls soil swelling instrument, it is characterized in that: described top cover is fixedly connected on water container outer wall by fixing bolt, arranging air bleeding valve on top cover, top cover central authorities are fixedly installed shaft position sensor, and side is fixedly installed temperature sensor.
Temperature the most according to claim 5 controls soil swelling instrument, it is characterized in that: described air bleeding valve connection water container inside and extraneous air, keep atmospheric equilibrium, by waterflood path toward water container internal water flooding when being conducive to testing, avoid compressing, during cohesive soil water-swellable, the error that inner air causes simultaneously.
Temperature the most according to claim 1 controls soil swelling instrument, it is characterised in that: with multiple holes on described pad, in order to the bubble discharge during swell deformation of expansive soil encountered with water.
Temperature the most according to claim 1 controls soil swelling instrument, it is characterised in that: described cap base is connected by standing screw with outer wall end face, the circular hole of top cover surrounding and the circular hole one_to_one corresponding of outer wall surrounding.
Temperature the most according to claim 1 controls soil swelling instrument, it is characterised in that: described water container base central authorities are provided with annular tank, annular tank is placed permeable stone, permeable stone is placed cutting ring, and cutting ring is internal is soil sample；One retaining ring is set outside permeable stone and cutting ring, prevents from expanding；Place another lead ring on cutting ring, be fixed on base by screw rod；Placing pad in soil sample, pad top contacts with shaft position sensor one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620210771.8U CN205484329U (en) | 2016-03-18 | 2016-03-18 | Temperature control soil swelling appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620210771.8U CN205484329U (en) | 2016-03-18 | 2016-03-18 | Temperature control soil swelling appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205484329U true CN205484329U (en) | 2016-08-17 |
Family
ID=56654303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620210771.8U Expired - Fee Related CN205484329U (en) | 2016-03-18 | 2016-03-18 | Temperature control soil swelling appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205484329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651970A (en) * | 2016-03-18 | 2016-06-08 | 广西大学 | Temperature control soil expansion instrument |
| CN106940164A (en) * | 2017-04-14 | 2017-07-11 | 桂林理工大学 | A kind of dilatometer of testing soil vertical deformation |
-
2016
- 2016-03-18 CN CN201620210771.8U patent/CN205484329U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651970A (en) * | 2016-03-18 | 2016-06-08 | 广西大学 | Temperature control soil expansion instrument |
| CN106940164A (en) * | 2017-04-14 | 2017-07-11 | 桂林理工大学 | A kind of dilatometer of testing soil vertical deformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |