CN205679610U - A kind of piping experimental rig that can uniformly lift water level and measure soil pressure - Google Patents
A kind of piping experimental rig that can uniformly lift water level and measure soil pressure Download PDFInfo
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- CN205679610U CN205679610U CN201620601777.8U CN201620601777U CN205679610U CN 205679610 U CN205679610 U CN 205679610U CN 201620601777 U CN201620601777 U CN 201620601777U CN 205679610 U CN205679610 U CN 205679610U
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- water level
- surge chamber
- soil pressure
- experimental rig
- piping
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Abstract
The utility model discloses a kind of piping experimental rig that can uniformly lift water level and measure soil pressure, it include testing sand launder, respectively with the upstream hydroecium that the front surge chamber that the upstream extremity of this test sand launder and downstream connect and rear surge chamber are connected with the other end of described front surge chamber and the water-supplying chamber being connected with the other end of described rear surge chamber；Wherein, the inwall of described test sand launder being interval with the soil pressure cell measuring soil body confined pressure, described upper water indoor are provided with the drainpipe that can uniformly lift.Advantage is that this piping experimental rig first passes through surge chamber before and after setting, makes water turnover sand launder more steady, thus ensures to realize stablizing of drift net；Secondly, the water level regulation equipment being consisted of rubber drain and plant equipment, reaches the accuracy controlling of water level, it is achieved the accurate simulation of unsteady state flow through porous medium height of water level；Survey soil pressure by arranging soil pressure cell at sand launder madial wall each point simultaneously, control soil body confined pressure size, packed uniform when making every layer of foundation soil load.
Description
Technical field
The utility model belongs to piping experimental rig field, particularly relates to one and can uniformly lift water level and measure soil body pressure
The piping experimental rig of power.
Background technology
China has built a large amount of hydraulic engineering due to problems such as water resource spatial and temporal distributions inequality, storm floods.But dyke is normal
There is piping dangerous situation, even cause and breach a dyke.Piping be the soil body corrode under seepage effect be movable fine grained and with water at hole
The process that middle migration is run off.In the process the coarse granule in the soil body may be maked somebody a mere figurehead, slump, eventually cause the destruction of the soil body.
The phenomenons such as levee body sagging, differential settlement, overall collapse may be caused with the development of piping, even lead to the calamity breached a dyke
Difficulty, endangers extremely serious, and the problems that piping brings in engineering cause the great attention of people, domestic and international researcher
Carry out substantial amounts of research with regard to piping and destruction thereof, obtain many significant achievements.Piping sand box model experimental rig
It is the key instrument of lab simulation piping, be common in the scientific experiment that research piping occurs development.At present, a lot of Seepage Pipings
Test in research unsteady state flow through porous medium owing to its draining instability is uneven, it is impossible to make water level uniform by controlling inflow
Lifting, and chute intake-outlet arranges unreasonable causing and can not correctly simulate seepage state in real foundation soil, in experiment
In can not speculate the packing of each point soil according to native lateral wall pressure.Its shortcoming has: (1) can not carry out intake chamber water evenly
The lifting of position；(2) lacking surge chamber causes drift net disorder to differ greatly with actual conditions；(3) soil body sidewall cannot accurately be learnt
The size of confined pressure.
Utility model content
Utility model purpose: the purpose of this utility model be to provide a kind of water level that can at the uniform velocity regulate intake chamber height,
Realize the accurate simulation to unsteady state flow through porous medium, make water turnover chute all more steadily and not affect drift net form, and can be accurate
The piping experimental rig of the pressure grasping foundation soil convective tank sidewall and bottom.
Technical scheme: the piping experimental rig that can uniformly lift water level and measure soil pressure of the present utility model, including
Test sand launder, the front surge chamber that connect with the upstream extremity of this test sand launder and downstream respectively and rear surge chamber and described before delay
Rush upstream hydroecium and the water-supplying chamber being connected with the other end of described rear surge chamber that the other end of room is connected；Wherein, described
Being interval with, on the inwall of test sand launder, the soil pressure cell measuring soil body confined pressure, described upper water indoor are provided with and can uniformly lift
Drainpipe.Preferably, the top testing sand launder is provided with cover plate, and on this cover plate, various location is provided with piping mouth, the end of water-supplying chamber
End is provided with delivery port.
Furtherly, upstream of the present utility model hydroecium is connected by porous disc with the other end of front surge chamber；Test
The upstream extremity of sand launder is connected by porous disc with front surge chamber；The downstream of test sand launder and rear surge chamber pass through porous disc phase
Connection；The other end of rear surge chamber is connected by porous disc with water-supplying chamber；It is separately filled with in front surge chamber and rear surge chamber
Cobble；The upper end of drainpipe connects adjustable varying-speed motor by pulley and uniformly lifts.
Beneficial effect: compared with prior art, remarkable advantage of the present utility model is: this piping experimental rig first passes through
Surge chamber before and after setting, makes water turnover sand launder more steady, thus ensures to realize stablizing of drift net, can simulate big face more realistically
Seepage flow situation in long-pending foundation soil；Secondly, the water level regulation equipment being consisted of rubber drain and plant equipment, reaches water
The accuracy controlling of position, it is achieved the accurate simulation of unsteady state flow through porous medium height of water level；Simultaneously by arranging soil at sand launder madial wall each point
Soil pressure surveyed by pressure cell, controls soil body confined pressure size, packed uniform when making every layer of foundation soil load.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the detailed schematic that drainpipe top connects.
In figure: the 1st, test sand launder, the 2nd, front surge chamber, the 3rd, rear surge chamber, the 4th, upstream hydroecium, the 5th, water-supplying chamber, the 6th, soil pressure cell,
7th, drainpipe, the 8th, porous disc, the 9th, cover plate, the 10th, piping mouth, the 11st, delivery port, the 12nd, water inlet pipe, the 13rd, pressure tap, the 14th, cobble, the 15th,
Plastics retainer ring, the 16th, nylon rope, the 17th, pulley, the 18th, adjustable varying-speed motor, the 19th, soil pressure display device.
Detailed description of the invention
Below in conjunction with the accompanying drawings the technical solution of the utility model is described further.
As it is shown in figure 1, of the present utility model can uniformly lift water level and measure the piping experimental rig of soil pressure and include
The test front surge chamber 2 that the 1st, connects with the upstream extremity of this test sand launder 1 and downstream respectively of sand launder and rear surge chamber 3 with described
Upstream hydroecium 4 that the other end of front surge chamber 2 is connected and the water-supplying chamber 5 being connected with the other end of described rear surge chamber 3, its
In, the inwall of described test sand launder 1 is interval with the soil pressure cell 6 measuring soil body confined pressure, being provided with in described upstream hydroecium 4 can
The uniformly drainpipe 7 of lifting；And described upstream hydroecium 4 is connected by the porous disc 8 of porous with the other end of front surge chamber 2；
The upstream extremity of described test sand launder 1 is connected by the porous disc 8 of porous with front surge chamber 2；The downstream of described test sand launder 1
It is connected by the porous disc 8 of porous with rear surge chamber 3；The other end of described rear surge chamber 3 and water-supplying chamber 5 pass through the saturating of porous
Water plate 8 is connected；It is separately filled with cobble 14, can reach to buffer the mesh of current in described front surge chamber 2 and rear surge chamber 3
's；Test sand launder top is provided with cover plate 9, and the various location of this cover plate is provided with piping mouth 10；The end back plate of water-supplying chamber 5 is provided with
Delivery port 11.And combining shown in Fig. 2, upstream of the present utility model hydroecium 4 has and higher encloses glass plate, is provided with therein
Rubber drain 7, this drainpipe upper end is little through drainpipe 7 upper end by plastics retainer ring 15 and the nylon rope 16 of hydroecium sidewall
Hole simultaneously strides across pulley 17 and is connected with adjustable varying-speed motor 18, by this adjustable varying-speed motor 18, drainpipe 7 is carried out uniformly
Lifting, the discharge outlet that the bottom of this drainpipe 7 passes through on upstream hydroecium 4 extends to outdoor；Additionally, be additionally provided with in upstream hydroecium 4
Water inlet pipe 12, is connected with outside tap, by regulating and controlling the size of the valve regulation and control current of tap.
Implementation process of the present utility model is as follows: when measure soil body confined pressure size on failure by piping when affecting, first exist
Layering in test sand launder loads pattern, after confirming to be packed full with whole cell body, adds a cover plate, and remains off piping mouth,
And close water inlet pipe end tap, soil pressure cell by the data transfer of initial sidewall earth pressure display on the display apparatus,
After a period of time, opening one of them piping mouth and tap, current enter upstream hydroecium by water inlet pipe, until upper water
Position reaches the upper end of drainpipe, and current enter test sand launder from porous disc after being covered with the front surge chamber of cobble, to soil layer
Permeate, remaining water flow through rear surge chamber enter water-supplying chamber discharged by delivery port, now, to cover plate apply preloading pressure
Power, can measure the preloading pressure on pressure value adjustable cover plate, thus measure pressure after device numerical value to be shown is basicly stable
The impact on failure by piping for the power.
When measure piping mouth position on failure by piping when affecting, it is only necessary to the position of the different piping mouth of change, in employing
The method of testing stated.
When measure water level height on failure by piping when affecting, it is only necessary to by setting the different speed of motor, uniformly
Promote drainpipe, the pressure tap of diverse location is set uniformly lift water level, and test sand launder with this in, by itself and test Guan Lian
Connecing, the height of water level of mensuration desired location calculates overlooking gradient during piping mouth generation quicksand phenomenon.
The utility model device can simulate uniformly lifting water level conditions and failure by piping under different soil pressures effectively
Mechanism, utilizes the experimental study to piping.
Claims (10)
1. one kind can uniformly lift water level and measure the piping experimental rig of soil pressure, it is characterised in that: this device includes examination
Test sand launder (1), the front surge chamber (2) connecting with upstream extremity and the downstream of this test sand launder (1) respectively and rear surge chamber (3),
The upstream hydroecium (4) that is connected with the other end of described front surge chamber (2) and being connected with the other end of described rear surge chamber (3)
Water-supplying chamber (5)；Wherein, the inwall of described test sand launder (1) is interval with the soil pressure cell (6) measuring soil body confined pressure, institute
It is provided with the drainpipe (7) that can uniformly lift in stating upstream hydroecium (4).
2. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: described upstream hydroecium (4) is connected by porous disc (8) with the other end of front surge chamber (2).
3. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: the upstream extremity of described test sand launder (1) is connected by porous disc (8) with front surge chamber (2).
4. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: the downstream of described test sand launder (1) is connected by porous disc (8) with rear surge chamber (3).
5. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: the other end of described rear surge chamber (3) is connected by porous disc (8) with water-supplying chamber (5).
6. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: it is separately filled with cobble in described front surge chamber (2) and rear surge chamber (3).
7. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: the upper end of described drainpipe (7) connects adjustable varying-speed motor by pulley and uniformly lifts.
8. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: the top of described test sand launder (1) is provided with cover plate (9).
9. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 8, its feature exists
In: the upper various location of described cover plate (9) is provided with piping mouth (10).
10. the piping experimental rig that can uniformly lift water level and measure soil pressure according to claim 1, its feature exists
In: the end of described water-supplying chamber (5) is provided with delivery port (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601777.8U CN205679610U (en) | 2016-06-17 | 2016-06-17 | A kind of piping experimental rig that can uniformly lift water level and measure soil pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601777.8U CN205679610U (en) | 2016-06-17 | 2016-06-17 | A kind of piping experimental rig that can uniformly lift water level and measure soil pressure |
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| CN205679610U true CN205679610U (en) | 2016-11-09 |
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| CN201620601777.8U Expired - Fee Related CN205679610U (en) | 2016-06-17 | 2016-06-17 | A kind of piping experimental rig that can uniformly lift water level and measure soil pressure |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908586A (en) * | 2017-04-14 | 2017-06-30 | 桂林理工大学 | Soil layer disintegration device under a kind of karst area load action |
| CN106932326A (en) * | 2017-05-11 | 2017-07-07 | 湘潭大学 | A kind of indoor domatic seepage tests model groove and test method |
| CN107290260A (en) * | 2017-05-24 | 2017-10-24 | 天津大学 | The husky groove experimental rig of water circulation for artesian water flow model in porous media |
| CN107525747A (en) * | 2017-08-16 | 2017-12-29 | 昆明理工大学 | A kind of experimental rig of novel analog Rock And Soil seepage action of ground water |
| CN108152188A (en) * | 2018-03-16 | 2018-06-12 | 河海大学 | The experimental rig and method of a kind of dynamic regulation seepage paths and piping mouth size |
| CN112255158A (en) * | 2020-09-30 | 2021-01-22 | 中国水利水电科学研究院 | Embankment foundation piping damage mode experimental device and method |
| CN112525740A (en) * | 2020-07-20 | 2021-03-19 | 宝丰县公路管理局 | Rut test device and double-wheel dynamic stability calculation method |
| CN112986536A (en) * | 2021-02-22 | 2021-06-18 | 中国水利水电科学研究院 | Device and method for simulating contact scouring damage of crossing-dike culvert pipe |
| CN113155698A (en) * | 2021-04-06 | 2021-07-23 | 长江水利委员会长江科学院 | Physical simulation device for large-scale embankment piping dangerous case evolution mechanism |
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2016
- 2016-06-17 CN CN201620601777.8U patent/CN205679610U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908586A (en) * | 2017-04-14 | 2017-06-30 | 桂林理工大学 | Soil layer disintegration device under a kind of karst area load action |
| CN106932326B (en) * | 2017-05-11 | 2023-09-19 | 湘潭大学 | Indoor slope seepage test model groove and test method |
| CN106932326A (en) * | 2017-05-11 | 2017-07-07 | 湘潭大学 | A kind of indoor domatic seepage tests model groove and test method |
| CN107290260A (en) * | 2017-05-24 | 2017-10-24 | 天津大学 | The husky groove experimental rig of water circulation for artesian water flow model in porous media |
| CN107290260B (en) * | 2017-05-24 | 2024-01-30 | 天津大学 | Water circulation sand tank test device for pressure-bearing water seepage model |
| CN107525747A (en) * | 2017-08-16 | 2017-12-29 | 昆明理工大学 | A kind of experimental rig of novel analog Rock And Soil seepage action of ground water |
| CN107525747B (en) * | 2017-08-16 | 2020-01-10 | 昆明理工大学 | Novel test of simulation ground body groundwater seepage flow device |
| CN108152188A (en) * | 2018-03-16 | 2018-06-12 | 河海大学 | The experimental rig and method of a kind of dynamic regulation seepage paths and piping mouth size |
| CN112525740A (en) * | 2020-07-20 | 2021-03-19 | 宝丰县公路管理局 | Rut test device and double-wheel dynamic stability calculation method |
| CN112255158A (en) * | 2020-09-30 | 2021-01-22 | 中国水利水电科学研究院 | Embankment foundation piping damage mode experimental device and method |
| CN112986536B (en) * | 2021-02-22 | 2022-02-08 | 中国水利水电科学研究院 | Device and method for simulating contact scouring damage of crossing-dike culvert pipe |
| CN112986536A (en) * | 2021-02-22 | 2021-06-18 | 中国水利水电科学研究院 | Device and method for simulating contact scouring damage of crossing-dike culvert pipe |
| CN113155698A (en) * | 2021-04-06 | 2021-07-23 | 长江水利委员会长江科学院 | Physical simulation device for large-scale embankment piping dangerous case evolution mechanism |
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| 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: 20161109 Termination date: 20190617 |
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| CF01 | Termination of patent right due to non-payment of annual fee |