CN205506291U - Indoor soil pressure cell tank prover - Google Patents
Indoor soil pressure cell tank prover Download PDFInfo
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- CN205506291U CN205506291U CN201521042045.1U CN201521042045U CN205506291U CN 205506291 U CN205506291 U CN 205506291U CN 201521042045 U CN201521042045 U CN 201521042045U CN 205506291 U CN205506291 U CN 205506291U
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- pressure cell
- soil pressure
- sand
- soil
- tank
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Abstract
The utility model relates to an indoor soil pressure cell tank prover. The tank prover includes relief valve, manometer, admission valve, discharge valve, air guide pipeline, circuit hole, cover, can body, soil pressure cell, pneumatic rubber capsules and sand. Pneumatic rubber capsules plays the effect sealed and power of biography. Placing soil pressure cell on fixed steel sheet sand, then covering soil pressure cell with the sand, guarantee that the sand is the same with original state soil nature matter, the wire passes through the circuit hole and links to each other with collection system, plugs up the circuit hole, guarantees the gas tightness, increases the atmospheric pressure in the tank prover through the air compressor machine, and atmospheric pressure forces pneumatic rubber capsules to produce surperficial pressure to the sand again to be used in above the soil pressure cell. Soil pressure cell is given through sand upper portion was controlled to controlling the air pressure's size pressure and then transmission to numerical value above reading the manometer. Collect the magnitude of voltage of soil pressure cell reflection through collection system, according to manometer reading and the voltage that soil pressure cell reflects, obtain the calibration curve of soil pressure cell in the sand.
Description
Technical field
This utility model relates to a kind of loading test device, particularly relates to a kind of indoor soil pressure cell tank prover, available
In Geotechnical Engineering, soil pressure cell is demarcated.
Background technology
Along with economic development science and technology progress, heavy construction, structures, Very Large Bridge increasing, foundation requirement
Increasingly stringent, pile foundation can dramatically increase the bearing capacity of ground, and form and the penetration process soil pressure of research stake are measured the heaviest
Want.Therefore at aspects such as Geotechnical Engineering, underground engineering, water conservancy and hydropowers, the measurement of soil pressure shows very important one side.Soil
The measurement of pressure is an importance of soil mechanics theory and experimental study, is the important content of engineering survey.Soil pressure one
As use soil pressure cell directly measure.Owing to being affected by various factors in working environment, the data that soil pressure cell records are frequent
There is bigger error with actual soil pressure force value, so soil pressure cell must be demarcated before the use, with obtain with
The running parameter of soil pressure cell in the case of actual working environment is similar.
And the measurement great majority following several method of employing of traditional soil pressure cell:Air pressure is demarcatedHydraulic calibration
Soil-structure interactions is demarcatedIn-site modeling is demarcated.These methods above-mentioned all have respective limitation.Air pressure is demarcated and hydraulic calibration obtains
The curve gone out is bigger with the real curve deviation ratio of measurement.In the middle of Practical Project and have to carry out soil pressure cell accurately
Demarcation, the demarcation of plant produced soil pressure cell out generally uses hydraulic calibration or air pressure to demarcate, so result of demarcation
Meet linear requirement.But (size of sand, arching, stress are concentrated, are loaded to run into various factors at engineering-environment
Speed etc.) impact, therefore can produce and have the biggest deviation with original calibration coefficient.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, this utility model provides a kind of indoor soil pressure cell tank prover.Energy
Reach the soil pressure and the mutual relation of confined pressure well reflecting that soil pressure cell records.In order to realize above technical purpose, this
Utility model will take following technical scheme:
A kind of indoor soil pressure cell tank prover, it is characterised in that: include what superstructure, substructure and concrete were constituted
Caliberating device.The superstructure of described tank prover includes relief valve, intake valve, Pressure gauge, air bleeding valve and cover, described tank prover
Substructure include circuit hole, can body, tank lower limb, rubber pneumatic bag and fixation steel plate.It is mounted with a Pressure gauge on cover top to use
Showing the atmospheric pressure value in current tank, when the atmospheric pressure value in tank exceedes the maximum pressure allowed, substitute valve automatically turns on guarantor
The safety of card tank prover, an air intake valve is used for controlling the inflow of gas, and a drain tap is used for getting rid of gas fall in tank
Low energy consumption and the air pressure in quickly making tank keep consistent with extraneous air pressure, cover bottom margin be a circle screw for
Substructure connects into an entirety.Substructure of described tank prover includes circuit hole, can body, tank lower limb and rubber pneumatic bag.Rubber
Glue air bag transmits air pressure to the pressure of sand and the effect that plays sealing, and rubber pneumatic bag and Guan Gai, can body one reinstate bolt
Link together, it is ensured that in whole tank, air-tightness is intact.Can body bottom is the concrete filled, and increases the firm of tank prover
Property, concrete block pours front smearing release agent in tank prover, repaves plastic sheeting isolation concrete, it is ensured that concrete can depart from
Tank prover, soil pressure cell is placed in steel plate sand, and wire is connected with harvester by circuit hole, and three tank lower limbs are whole for supporting
Individual tank prover.
The described indoor above-mentioned parts of soil pressure cell tank prover constitute the combining form that air pressure is demarcated and soil-structure interactions is demarcated.
Described indoor soil pressure cell tank prover, places soil pressure cell on fixation steel plate sand, then sand slowly
Overburden soil pressure cell, be embedded to certain thickness in sand, wire is connected with harvester by described circuit hole, seals circuit
Hole, inducing QI pipeline is connected with air compressor machine, and for increasing the air pressure in tank, air pressure makes rubber pneumatic bag that sand is produced the pressure on surface
Power, thus act on soil pressure cell.Read numerical value above Pressure gauge thus controlled on sand by the size controlling air pressure
The pressure in portion and then pass to soil pressure cell.Magnitude of voltage soil pressure cell reflected by harvester is collected, according to
Pressure gauge reading and the voltage of soil pressure cell output, obtain soil pressure cell calibration curve in sand.
Described indoor soil pressure cell tank prover, it is characterised in that: before described concreting in tank smearing release agent,
Repave plastic sheeting isolation concrete, it is ensured that concrete departs from tank prover.
According to above technical scheme, it is known that utility model works principle is:
Soil pressure cell timing signal, is placed on soil pressure cell in the sand of tank prover, and soil pressure cell is covered by sand, embedment
Certain thickness in sand, wire is connected with harvester by described circuit hole, seals circuit hole, inducing QI pipeline and air compressor machine
Connecting, for increasing the air pressure in tank, air pressure makes rubber pneumatic bag that sand is produced the pressure on surface, thus acts on soil pressure cell
On.Read numerical value above Pressure gauge thus control the pressure on sand top by the size controlling air pressure and then pass to soil pressure
Power box.Magnitude of voltage soil pressure cell reflected by harvester is collected, defeated according to pressure gauge reading and soil pressure cell
The voltage gone out, obtains soil pressure cell calibration curve in sand.
Use the tank prover of the indoor soil pressure cell that the utility model proposes to demarcate soil pressure cell, it is ensured that soil pressure cell
Vertically being placed in sand, it is impossible to placing, sand fully to pave identical with undisturbed soil character, soil pressure cell covers sand
Thickness passes through different tests from Row sum-equal matrix, it is ensured that the air-tightness in tank, prevents from affecting the reflection of true pressure.
According to above technical scheme, it is known that this utility model has the following characteristics that
1, rubber pneumatic bag described in this utility model and safety air vavle, is significant points of the present utility model.Rubber pneumatic bag
As a kind of load transfer device, the pressure acting on the generation of sand surface acts on soil pressure cell uniformly, passes through safety air vavle
Control the air pressure in tank.Reach air pressure to demarcate and soil-structure interactions demarcates both combination.Rubber pneumatic bag can also ensure superstructure
Connecting with substructure fully avoids gas leak phenomenon to occur, it is ensured that the air-tightness of tank prover.
2, this tank prover uses soil-structure interactions to demarcate and air pressure is demarcated both and combined, and overcomes tradition calibration result insecure
Shortcoming.By the air pressure of air compressor machine every 0.01Mpa or less, increase the air pressure in tank prover, sand be under pressure uniformly from
And pass to soil pressure cell, soil pressure cell collects the magnitude of voltage of correspondence by wire harvester, calculates confined pressure power and voltage
Relation, obtains soil pressure cell calibration result in sand.
3, place concrete bottom tank prover, on the one hand can increase the strength and stability of whole device, on the other hand
Half rigid body and the character of noncontinuity medium of the soil body can be simulated.Soil pressure cell for various ways is placed on this demarcation
Tank can record out effective data.
Accompanying drawing explanation
Fig. 1 is；The vertical cross section figure of indoor soil pressure cell tank prover.
Fig. 2 is；The site plan of indoor soil pressure cell tank prover.
Fig. 3 is: the front elevation view of indoor soil pressure cell tank prover.
Wherein: relief valve 1；Intake valve 2；Pressure gauge 3；Circuit hole 4；Air bleeding valve 5；High-strength bolt hole 6；Hole for hoist 7；Tank
Lid 8；Can body 9；Tank lower limb 10；Rubber pneumatic bag 11；Soil pressure cell 12；Wire 13；Fixation steel plate 14；Concrete 15；Sand 16；Inducing QI
Pipeline 17.
Detailed description of the invention
Accompanying drawing indicates the structural representation of preferred embodiment involved by this utility model；Below in conjunction with detail drawing in detail
Bright the technical solution of the utility model.
As it can be seen, the indoor soil pressure cell tank prover in present embodiment includes cover 8, can body 9, tank lower limb 10, rubber
Air bag 11.Fill lid 8, rubber pneumatic bag 10, can body 9 by screw bolt passes, then add Upper gasket nut and tighten.
Pressure gauge 3 is placed in the forefront of tank prover, facilitates staff's reading.Circuit hole 5 is by after wire 13, with not
Hole blocked by ventilative material, it is ensured that the air-tightness in tank prover.Air compressor machine is connected with intake valve 2 and to ensure to be completely embedded, empty
The air pressure that press produces flows in tank by intake valve 2, and air bleeding valve 5 to be closed.Relief valve 1 can ensure that when demarcating
Eliminating excessive gas can be automatically turned on when tank internal gas pressure exceedes setting value, reduce energy consumption.
First lifted by 7 covers 8 of hole for hoist with overhead crane when placing soil pressure cell 12, be placed on home
After, soil pressure cell 12 is placed on directly over fixation steel plate 14 on certain thickness sand 16, it is ensured that position does not tilts, logical
Crossing circuit hole 4 and draw wire 13, then lay sand, to pave uniformly during laying, identical with undisturbed soil character, it is suitable to be adjusted to
Thickness time, cover 8, rubber pneumatic bag 11 and can body 9 is good with high strength exploitation, block circuit hole 4, ensure after air-tightness
Can test.
Air compressor machine increases the air pressure in tank prover by inducing QI pipeline, and air pressure forces rubber pneumatic bag 11 to produce sand 16 again
The pressure on surface, thus act on above soil pressure cell 12.Read Pressure gauge 3 numerical value above thus by controlling the size of air pressure
Control the confined pressure power on sand 16 top, pass to soil pressure cell 12.By harvester, soil pressure cell 12 is reflected
Magnitude of voltage is collected, the voltage exported according to pressure gauge reading and soil pressure cell, obtains soil pressure cell demarcation in sand bent
Line.
Claims (2)
1. an indoor soil pressure cell tank prover, it is characterised in that: include that superstructure, substructure and concrete (15) are constituted
Caliberating device, the superstructure of described tank prover include relief valve (1), intake valve (2), Pressure gauge (3), air bleeding valve (5) and
Cover (8), substructure of described tank prover includes circuit hole (4), can body (9), tank lower limb (10) and rubber pneumatic bag (11), described
Tank prover is made up of air pressure and demarcates and the combining form of soil-structure interactions demarcation above-mentioned parts, described indoor soil pressure cell tank prover,
Rubber pneumatic bag (11) He Guangai (8), can body (9) are bolted together together, and rubber pneumatic bag (11) plays sealing and power transmission
Effect, soil pressure cell (12) is placed in the sand (16) inside tank prover, soil pressure cell (12) by sand (16) cover,
Being embedded to certain thickness in sand (16), wire (13) is connected with harvester by described circuit hole (4), seals circuit hole
(4), inducing QI pipeline (17) is connected with air compressor machine, and for increasing the air pressure in tank, air pressure makes rubber pneumatic bag produce sand (16)
The pressure on surface, thus act on soil pressure cell (12), read Pressure gauge (3) numerical value above thus by controlling the big of air pressure
The little pressure controlling sand (16) top and then pass to soil pressure cell (12), by harvester, soil pressure cell (12) is anti-
The magnitude of voltage mirrored is collected, the voltage reflected according to pressure gauge reading and soil pressure cell, obtains soil pressure cell in sand
Calibration curve.
Indoor soil pressure cell tank prover the most according to claim 1, it is characterised in that: described concrete (15) pour before
Smearing release agent in tank, repaves plastic sheeting isolation concrete, it is ensured that concrete (15) departs from tank prover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042045.1U CN205506291U (en) | 2015-12-15 | 2015-12-15 | Indoor soil pressure cell tank prover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042045.1U CN205506291U (en) | 2015-12-15 | 2015-12-15 | Indoor soil pressure cell tank prover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205506291U true CN205506291U (en) | 2016-08-24 |
Family
ID=56721138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521042045.1U Expired - Fee Related CN205506291U (en) | 2015-12-15 | 2015-12-15 | Indoor soil pressure cell tank prover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205506291U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424273A (en) * | 2015-12-15 | 2016-03-23 | 河南工业大学 | Novel indoor earth pressure cell calibration tank |
| CN107328522A (en) * | 2017-08-09 | 2017-11-07 | 武汉科技大学 | A kind of soil pressure cell caliberating device and its application method |
| CN114705355A (en) * | 2022-02-25 | 2022-07-05 | 上海勘测设计研究院有限公司 | Fluid calibration device for soil pressure cell and soil pressure cell calibration method |
| WO2024119982A1 (en) * | 2022-12-08 | 2024-06-13 | 北京工业大学 | Soil body medium-based calibration system capable of simultaneously calibrating a plurality of soil pressure sensors |
-
2015
- 2015-12-15 CN CN201521042045.1U patent/CN205506291U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424273A (en) * | 2015-12-15 | 2016-03-23 | 河南工业大学 | Novel indoor earth pressure cell calibration tank |
| CN107328522A (en) * | 2017-08-09 | 2017-11-07 | 武汉科技大学 | A kind of soil pressure cell caliberating device and its application method |
| CN107328522B (en) * | 2017-08-09 | 2019-06-25 | 武汉科技大学 | A kind of soil pressure cell caliberating device and its application method |
| CN114705355A (en) * | 2022-02-25 | 2022-07-05 | 上海勘测设计研究院有限公司 | Fluid calibration device for soil pressure cell and soil pressure cell calibration method |
| CN114705355B (en) * | 2022-02-25 | 2024-03-26 | 上海勘测设计研究院有限公司 | Fluid calibration device for soil pressure box and soil pressure box calibration method |
| WO2024119982A1 (en) * | 2022-12-08 | 2024-06-13 | 北京工业大学 | Soil body medium-based calibration system capable of simultaneously calibrating a plurality of soil pressure sensors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Zhaoran Inventor after: Li Tingting Inventor after: Zhao Hongyu Inventor after: Lv Qingxian Inventor after: Zhu Liangliang Inventor after: Zhou Zhiqiang Inventor after: Guo Zhuhui Inventor after: Zhao Xianqiang Inventor after: Jiang Minmin Inventor after: Cao Mingming Inventor before: Xiao Zhaoran Inventor before: Lv Qingxian Inventor before: Zhu Liangliang Inventor before: Zhou Zhiqiang Inventor before: Guo Zhuhui Inventor before: Zhao Xianqiang Inventor before: Jiang Minmin Inventor before: Cao Mingming Inventor before: Li Tingting |
|
| COR | Change of bibliographic data | ||
| 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: 20160824 Termination date: 20161215 |