CN207908318U - Piping experimental rig in a kind of unstable aggressivity - Google Patents
Piping experimental rig in a kind of unstable aggressivity Download PDFInfo
- Publication number
- CN207908318U CN207908318U CN201820338422.3U CN201820338422U CN207908318U CN 207908318 U CN207908318 U CN 207908318U CN 201820338422 U CN201820338422 U CN 201820338422U CN 207908318 U CN207908318 U CN 207908318U
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- piping
- aggressivity
- standard screen
- unstable
- water tank
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Abstract
The utility model discloses piping experimental rigs in a kind of unstable aggressivity, including regulating system, groove body, measuring system；The regulating system includes water tank, and the water inlet of the water tank connects feed pipe, and the water outlet of water tank is connected by water pipe with the water inlet of groove body；One end of the groove body is equipped with reserved piping mouth, and the measuring system includes standard screen and weight induction device, and the reserved piping mouth is connected by outlet pipe with standard screen, and weight induction device is equipped with below the standard screen.Piping experimental rig in a kind of unstable aggressivity of the utility model, it can more acurrate, more comprehensively, more easily study mechanism and phenomenon that piping occurs, develops and destroys, and the data of shake out grading curve and seepage discharge are obtained in time, reduce test result error.This apparatus structure is simple, easy to operate, has a good application prospect.
Description
Technical field
The utility model is related to a kind of piping model test apparatus, and in particular to piping experiment in a kind of unstable aggressivity
Device.
Background technology
Piping refers to that the fine grained that is filled in soil body matrix porosity, which is taken away and formed by flow, to be oozed under seepage water effect
Leak a kind of seepage failure phenomenon in channel.A large amount of flood data shows that levee foundation piping is master of the rivers embankment in flood season
One of dangerous situation is wanted, the quantity not only occurred is mostly but also the range of distribution is wide, it is important that is easy to induce the dangerous situation that inrushes.Due to soil
The complexity and diversity of body itself so that seepage deformation mechanism and Emergence and Development process it is also extremely complex and have randomness,
River Embankment cannot be reinforced effectively, so that annual all have to put into a large amount of human and material resources and financial resources in flood season, for a long time
Since the dam body caused by piping destroy and dike breaching causes heavy losses to society, reinforcement has the research of piping
Highly important realistic meaning, the more scholars of weight have carried out piping the research of a variety of methods, including numerical method, common numerical method
For FInite Element.However piping process is the complex process of native water phase interaction.Researcher is often ground by laboratory test
Study carefully.
Traditional piping test model mostly simulates uniform erosion piping for short form test, and piping is big in practice
Mostly based on piping in non-homogeneous aggressivity, therefore, this simplified method is more unilateral；Traditional piping test model is often
It draws after the end of the test and gushes sand grading curve, cannot obtain gushing sand grading curve, meeting in a period of time in experiment carries out
Certain error is caused to test result.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide piping in a kind of unstable aggressivity to try
Experiment device is studied the generation phenomenon of piping in non-homogeneous aggressivity by this experimental rig, and tests gathered data in progress,
It draws out and gushes sand grading curve, improve the accuracy of test result.
In order to realize above-mentioned target, the utility model adopts the following technical scheme：
Piping experimental rig in a kind of unstable aggressivity, including regulating system, groove body, measuring system；The adjusting system
System includes water tank, and the water inlet of the water tank connects feed pipe, the water inlet phase that the water outlet of water tank passes through water pipe and groove body
Connection；One end of the groove body is equipped with reserved piping mouth, and the measuring system includes standard screen and weight induction device, described reserved
Piping mouth is connected by outlet pipe with standard screen, and weight induction device is equipped with below the standard screen.
The regulating system further includes the electromagnetic field being made of several battery plates as a further improvement of the utility model,
The water tank is set between battery plate.
The measuring system further includes rotating ring, electric rotating machine, graduated cylinder as a further improvement of the utility model,；Institute
It states and is equipped with graduated cylinder below standard screen, the graduated cylinder bottom is equipped with weight induction device, passes through rotation between the standard screen and outlet pipe
Change is connected, and the electric rotating machine is connected across standard screen with rotating ring.
The reserved piping mouth is equipped with micro- device that shakes as a further improvement of the utility model, and micro- device that shakes is fixed on water outlet
Guan Shang.
As the further improvement of the utility model, the weight of weight induction device, graduated cylinder bottom below the standard screen
Amount inductor, battery plate, micro- device that shakes are connected with computer respectively.
As the further improvement of the utility model, the standard screen is equipped with several, passes through rotation between standard screen
Ring is connected.
The regulating system further includes several holders as a further improvement of the utility model, and the holder both ends are set
There are limiting plate, the holder to be connected with water tank by sliding slot.
As a further improvement of the utility model, the groove body include into hydroecium and sand launder, it is described enter hydroecium and sand launder
Between separated by partition board.
The utility model is beneficial in that：Piping experimental rig in a kind of unstable aggressivity of the utility model,
Mechanism and phenomenon that piping occurs, develops and destroys can more acurrate, more comprehensively, be more easily studied, and obtains shake out in time
The data of grading curve and seepage discharge reduce test result error.This apparatus structure is simple, easy to operate, has good answer
Use foreground.
Description of the drawings
Fig. 1 is the structural schematic diagram of piping experimental rig in a kind of unstable aggressivity of the utility model.
Fig. 2 is the measuring system structural schematic diagram of piping experimental rig in a kind of unstable aggressivity of the utility model.
The meaning marked in attached drawing is as follows：1, tap, 2, feed pipe, 3, electric field, 4, water tank, 5, water pipe, 6, enter hydroecium,
7, sand launder, 8, reserved piping mouth, 9, measuring system, 10, outlet pipe, 11, rotating ring, 12, standard screen, 13, electric rotating machine, 14,
Graduated cylinder, 15, holder, 16, computer, 17, micro- device that shakes, 18, groove body, 19, battery plate.
Specific implementation mode
Specific introduce is made to the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figs. 1-2, piping experimental rig in a kind of unstable aggressivity, including regulating system, groove body 18, measurement system
System 9；The regulating system includes water tank 4, several holders 15, and the water inlet of the water tank 4 connects feed pipe 2, and the water tank 4 goes out
The mouth of a river is connected by water pipe 5 with the water inlet of groove body 18；4 holders 15 being equipped with are vertical by four of sliding slot and water tank 4
Rib is connected, and is slided up and down for controlling water tank 4, and 15 both ends of holder are equipped with limiting plate, controls the scope of activities of water tank 4, to prevent
Water tank 4 derails；One end of the groove body 18 is equipped with reserved piping mouth 8, and the measuring system 9 includes standard screen 12 and weight induction
Device, the reserved piping mouth 8 are connected by outlet pipe 10 with standard screen 12, and 12 lower section of standard screen is equipped with weight induction device, weight
Amount inductor is connected with computer 16, and computer 16 is drawn out by the data of acquisition gushes sand grading curve.
The regulating system further includes the electromagnetic field being made of several battery plates 19, and the water tank 4 is set between battery plate 19, electricity
Plate 19 is controlled by computer 16, and the arbitrary change of 3 intensity of electric field and direction between battery plate 19 can be realized by computer 16.
The measuring system 9 further includes rotating ring 11, electric rotating machine 13, graduated cylinder 14；12 lower section of the standard screen is equipped with amount
Cylinder 14,14 bottom of graduated cylinder are equipped with weight induction device, and weight induction device inputs a signal into computer 16, and computer 16 is by collection
Seepage discharge data are for drawing seepage discharge and time curve；It is connected by rotating ring 11 between standard screen 12 and outlet pipe 10
It connects, standard screen 12 is equipped with layer, is connected by rotating ring 11 between standard screen 12, and electric rotating machine 13 passes through standard screen 12 and rotation
Ring 11 is connected, and electric rotating machine 13 is rotated freely around rotating ring 11, achievees the purpose that automatic sieving.
The water tank 4 is equipped with speed sensor, and speed sensor is also connected with computer 16, is used for real-time display water tank
The speed of service；By adjusting 3 intensity of electric field and direction come acceleration or deceleration water tank 4, reach goal pace；Wherein water tank 4 is
Electrification, it is prepared using magnet material, electric field 3 is disposed on 4 vertical direction of water tank.
The reserved piping mouth 8 is equipped with micro- device 17 that shakes, and micro- device that shakes is fixed on one end of outlet pipe, is set as every 5 minutes
Vibration is primary, to the gravel of dredge blockage piping mouth.
The groove body 18 includes into hydroecium 6 and sand launder 7, described to enter between hydroecium 6 and sand launder 7 to separate by partition board, partition board
On there are hole, enter hydroecium to buffer flow.
The sliding slot is equipped with graduation mark, to determine the height of water tank.
Before step (1), experiment, the device equipment needed for piping experiment is first placed in a smooth test site,
And guarantee test ambient light is sufficient, filling soil sample into experiment sand launder 7, (soil sample employed in this example is to meet grain size 5-
The coarse sand of 10mm is 5 with grain size 0.075-2mm China iso standard sand mass ratio:1 piping-typed soils), layering filling, every layer of dress
It completes and is just compacted, is vented and saturated process；Glass cover-plate is put into the top of model groove soil body, is sealed with glass cement, with
Simulate the overlying clay layer under truth；
Step (2) opens tap 1 by the first water supply of feed-tank 4 of water pipe 5, after water tank 4 is for full water；Power supply is opened,
Adjusting electric field 3 by computer 16 makes water tank 4 have a certain speed, continues to adjust electric field 3 so that water tank 4 is even in the vertical direction
Speed moves, and the fluid during guarantee test in water tank 4 is full of water tank 4 so that the fluid in water tank 4 passes through water pipe 5 and impacts examination
The soil body in sand launder 7 is tested, permeability test is carried out；
Step (3) opens electric rotating machine 13, drives standard screen 12 to rotate, achievees the purpose that automatic sieving, computer 16
It can be drawn out by the data of weight induction device and gush sand grading curve in certain a period of time, while draw seepage discharge and time relationship
Curve stops experiment until when failure by piping in aggressivity occurs completely for the soil body；
Step (4)：It repeats Step 2: step 3；
Step (5)：After the test, sand grading curve and seepage discharge and time relationship song are gushed during repairing experiment
Line, analysis particle group in pairs in non-homogeneous aggressivity piping influence.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
The technical solution obtained, all falls in the scope of protection of the utility model.
Claims (8)
1. piping experimental rig in a kind of unstable aggressivity, it is characterised in that：Including regulating system, groove body, measuring system；Institute
It includes water tank to state regulating system, and the water inlet of the water tank connects feed pipe, and the water outlet of water tank passes through water pipe and groove body
Water inlet is connected；One end of the groove body is equipped with reserved piping mouth, and the measuring system includes standard screen and weight induction device,
The reserved piping mouth is connected by outlet pipe with standard screen, and weight induction device is equipped with below the standard screen.
2. piping experimental rig in a kind of unstable aggressivity according to claim 1, it is characterised in that：The adjusting system
System further includes the electromagnetic field being made of several battery plates, and the water tank is set between battery plate.
3. piping experimental rig in a kind of unstable aggressivity according to claim 1, it is characterised in that：The measurement system
System further includes rotating ring, electric rotating machine, graduated cylinder；Graduated cylinder is equipped with below the standard screen, the graduated cylinder bottom is equipped with weight induction
Device is connected between the standard screen and outlet pipe by rotating ring, and the electric rotating machine is connected across standard screen with rotating ring
It connects.
4. piping experimental rig in a kind of unstable aggressivity according to claim 1, it is characterised in that：The provided pipe
It gushes mouth and is equipped with micro- device that shakes, micro- device that shakes is fixed on outlet pipe.
5. according to piping experimental rig in a kind of unstable aggressivity of claim 1-4 any one of them, it is characterised in that：Institute
The weight induction device below standard screen, the weight induction device of graduated cylinder bottom, battery plate, micro- device that shakes is stated respectively to be connected with computer.
6. piping experimental rig in a kind of unstable aggressivity according to claim 3, it is characterised in that：The standard screen
Equipped with several, it is connected by rotating ring between standard screen.
7. piping experimental rig in a kind of unstable aggressivity according to claim 1, it is characterised in that：The adjusting system
System further includes several holders, and the holder both ends are equipped with limiting plate, and the holder is connected by sliding slot with water tank.
8. piping experimental rig in a kind of unstable aggressivity according to claim 1, it is characterised in that：The groove body packet
It includes into hydroecium and sand launder, it is described to enter between hydroecium and sand launder to separate by partition board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338422.3U CN207908318U (en) | 2018-03-12 | 2018-03-12 | Piping experimental rig in a kind of unstable aggressivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338422.3U CN207908318U (en) | 2018-03-12 | 2018-03-12 | Piping experimental rig in a kind of unstable aggressivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207908318U true CN207908318U (en) | 2018-09-25 |
Family
ID=63558092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820338422.3U Expired - Fee Related CN207908318U (en) | 2018-03-12 | 2018-03-12 | Piping experimental rig in a kind of unstable aggressivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207908318U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307633A (en) * | 2018-11-23 | 2019-02-05 | 合肥工业大学 | Gravelly soil internal corrosion testing equipment and test method under a kind of seepage effect |
| CN110261277A (en) * | 2019-07-05 | 2019-09-20 | 河海大学 | A kind of determining experimental rig and method for being saturated soil sample critical hydraulic gradient in situ |
| CN114577440A (en) * | 2022-03-11 | 2022-06-03 | 浙江大学 | Physical model for generation and development of dike foundation piping and monitoring method |
-
2018
- 2018-03-12 CN CN201820338422.3U patent/CN207908318U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307633A (en) * | 2018-11-23 | 2019-02-05 | 合肥工业大学 | Gravelly soil internal corrosion testing equipment and test method under a kind of seepage effect |
| CN109307633B (en) * | 2018-11-23 | 2020-10-02 | 合肥工业大学 | Testing equipment and testing method for erosion of inner part of gravel soil under seepage effect |
| CN110261277A (en) * | 2019-07-05 | 2019-09-20 | 河海大学 | A kind of determining experimental rig and method for being saturated soil sample critical hydraulic gradient in situ |
| CN114577440A (en) * | 2022-03-11 | 2022-06-03 | 浙江大学 | Physical model for generation and development of dike foundation piping and monitoring method |
| CN114577440B (en) * | 2022-03-11 | 2023-12-15 | 浙江大学 | Physical model for generating and developing dyke base piping and monitoring method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20210312 |
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| CF01 | Termination of patent right due to non-payment of annual fee |