CN208224256U - A kind of centrifugal model test device of achievable Changes in underground water variation control - Google Patents
A kind of centrifugal model test device of achievable Changes in underground water variation control Download PDFInfo
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- CN208224256U CN208224256U CN201820858575.0U CN201820858575U CN208224256U CN 208224256 U CN208224256 U CN 208224256U CN 201820858575 U CN201820858575 U CN 201820858575U CN 208224256 U CN208224256 U CN 208224256U
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Abstract
The utility model discloses a kind of centrifugal model test devices of achievable Changes in underground water variation control, including oil cylinder, bracket, connection ring, connecting plate, water-supply-pipe, model casing and water tank, it is bolted between oil cylinder and bracket, bracket is in inverted " u " shape；The water tank is welded by steel plate, the side of water tank is equipped with anti-dumping inclined clapboard, and water tank upper is equipped with connecting plate, and there are two the holes of 3mm for the back lower place, it is connected between oil cylinder and water tank by the anti-torque connection ring being mounted on connecting plate, differential displacement sensor is installed on oil cylinder and water tank；Pore water pressure sensor is respectively set in the water tank and model casing, to control the height of water level rising and the timing node of fluctuation of water table.The utility model passes through the use in conjunction of differential displacement sensor, pore water pressure sensor and solenoid valve and flowmeter, can accurately control the timing node of fluctuation of water table, the speed and lifting height of rising.
Description
Technical field
The utility model relates to a kind of experimental rig, in particular to a kind of achievable Changes in underground water variation control from
Heart model test apparatus belongs to geology and ground science and technology field.
Background technique
The Yellow River originating from Qinghai-Tibet Platean, flows through 9 provinces (autonomous region) from West to East, finally flows into the Bohai Sea.The Yellow River is littoral
The underground water for being close to river area is constantly changed by natural cause and the joint effect of mankind's activity, rock caused by groundwater level fluctuation
Native engineering problem emerges one after another, and in recent years, more and more scholars attempt to use large geotechnical centrifugal model test, to study
The deformation characteristic and deformation rule of ground when WATER LEVEL CHANGES.The method of large geotechnical centrifugal model test has expense low,
Deformation is convenient for observation and analysis, the advantages that repeating, is easy to operate.The uniform and stable of level of ground water is realized in centrifugal model
Dynamic change be the key that correct analog study problems.And the key of Groundwater Control is realized in centrifugal model test
It is to establish an accurate water level feedback and control system, thus the change process of correct simulated groundwater.However at present simultaneously
There is no a kind of control system for Decline or rise of groundwater level in centrifuge test system, can control the timing node of SEA LEVEL VARIATION,
The speed and height and guarantee the uniform and stable lifting of level of ground water that water level rises.So that being become in geotechnical engineering by level of ground water
The research of the dynamic relevant issues influenced is very restricted.
Utility model content
The utility model aim is to provide a kind of centrifugal model test dress of achievable Changes in underground water variation control
It sets, control system passes through the use in conjunction of differential displacement sensor, pore water pressure sensor and solenoid valve and flowmeter, can
The accurately timing node of control fluctuation of water table, the speed and lifting height of rising are caused by the prior art above-mentioned to solve
Defect.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of centrifugal model test device of achievable Changes in underground water variation control, including oil cylinder, bracket, connection
Ring, connecting plate, water-supply-pipe, model casing and water tank, are bolted between oil cylinder and bracket, and bracket is in inverted " u " shape；It is described
Water tank is welded by steel plate, and anti-dumping inclined clapboard is equipped on rear side of water tank, and water tank upper is equipped with connecting plate, and the back lower place has
The hole of two 3mm is connected between oil cylinder and water tank by the anti-torque connection ring being mounted on connecting plate, on oil cylinder and water tank
Differential displacement sensor is installed, differential displacement sensor is connected by communication system with indoor control system, and water can be controlled
Case moves up and down in the range of bracket；The water tank passes through several water-supply-pipe link model casees, is provided with electromagnetism on water-supply-pipe
Valve and flowmeter, solenoid valve and flowmeter pass through terminal box and connect with indoor control system；The model casing is by two parts structure
At model casing bottom has initial water level to control interlayer, and interlayer is one layer of steel plate, and steel plate and model casing surrounding are welded, close on steel plate
Cloth small sircle hole, water tank bottom and native case are internally provided with several pore water pressure sensors, and pore water pressure sensor is by connecing
Wire box is connected with indoor control system.
It is for geotechnical centrifugal model test in the model casing as a kind of optimal technical scheme of the utility model
Foundation model or side slope model.
As a kind of optimal technical scheme of the utility model, the steel plate thickness of the interlayer is 3mm, small sircle hole on steel plate
Diameter be 1mm.
As a kind of optimal technical scheme of the utility model, the both ends of the water-supply-pipe pass through angle coupling respectively with
Water tank is connected with model casing.
As a kind of optimal technical scheme of the utility model, the water-supply-pipe is PU pneumatics hose.
The utility model has the advantages that compared with traditional technology, the utility model is by being provided with the lifting device of centrifugal field groundwater supply
The requirement for realizing the operating condition of different SEA LEVEL VARIATIONs in geotechnical centrifugal model test, is accurately controlled by solenoid valve and flowmeter
Into the water flow and speed of native case；Present apparatus structure is simple and clear, convenient for production, has great practical value.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of the utility model；
Fig. 2 is the forward sight structural schematic diagram of the utility model water tank；
Fig. 3 is the backsight structural representation of the utility model model casing；
Fig. 4 is the water system structural schematic diagram of the utility model；
Fig. 5 is the cisten mechanism schematic diagram of the utility model；
Fig. 6 is the utility model tank bracket and power system architecture schematic diagram；
Wherein: 1- oil cylinder, 2- bolt, 3- bracket, 4- connection ring, 5- connecting plate, 6- water-supply-pipe, 7- solenoid valve, the right angle 8-
Connector, 9- interlayer, 10- foundation model, 11- model casing, 12- water tank, 13- differential displacement sensor, hole built in 14- model casing
Hole pressure sensor, 16- flowmeter, 17- anti-dumping inclined clapboard built in pressure sensor, 15- water tank.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
As shown in Figure 1-Figure 3, a kind of centrifugal model test device of achievable Changes in underground water variation control, including oil
Cylinder 1, bracket 3, connection ring 4, connecting plate 5, water-supply-pipe 6, model casing 11 and water tank 12 pass through bolt 2 between oil cylinder 1 and bracket 3
Connection, bracket 3 are in inverted " u " shape；The water tank 12 is welded by steel plate, and the side of water tank 12 is equipped with anti-dumping inclined clapboard
17,12 top of water tank is equipped with connecting plate 5, and the back lower place passes through installation there are two the hole of 3mm between oil cylinder 1 and water tank 12
Anti- torque connection ring 4 on connecting plate 5 connects, and is equipped with differential displacement sensor 13, differential displacement on oil cylinder 1 and water tank 12
Sensor is connected by communication system with indoor control system, can be controlled water tank 12 and be moved up and down in the range of bracket 3；Institute
It states water tank 12 and passes through several 6 link model casees 11 of water-supply-pipe, be provided with solenoid valve 7 and flowmeter 16, solenoid valve 7 on water-supply-pipe 6
It is connected by terminal box with indoor control system with flowmeter 16；The model casing 11 is made of two parts, 11 bottom of model casing
Portion has initial water level to control interlayer 9, and interlayer 9 is one layer of steel plate, steel plate and the welding of 11 surrounding of model casing, and gather roundlet on steel plate
Hole, 12 bottom of water tank and model casing 11 are internally provided with several pore water pressure sensors, and pore water pressure sensor is by connecing
Wire box is connected with indoor control system.
Wherein, in the model casing 11 it is foundation model or side slope model for geotechnical centrifugal model test.
Wherein, the steel plate thickness of the interlayer 9 is 3mm, and the diameter of small sircle hole is 1mm on steel plate.
Wherein, the both ends of the water-supply-pipe 6 pass through angle coupling 8 and connect respectively with water tank 12 and model casing 11.
Wherein, the water-supply-pipe 6 is PU pneumatics hose.
When the utility model is used the following steps are included:
(1), pore water pressure sensor 14 and water tank built in several model casings 11 are fixed in water tank 12 and model casing 11
Pore water pressure sensor 15 built in 12, the topped up with water in water tank 12, the filling test simulation material in model casing 11 simulate material
Material fills reasonable altitudes according to test requirements document.After the completion of filling, oil cylinder 1 is fixed on 3 top of bracket by bolt 2, and passes through
The connection ring 4 of anti-torque connects water tank 12 and oil cylinder 1.
(2), by the water tank 12 being installed and model casing 11 lift respectively in place, on water tank 12 have 7 He of solenoid valve
The water-supply-pipe 6 of flowmeter 16 is connected on model casing 11 casees, so that water tank 12 and model casing 11 form an entirety, then
By water tank 12 plus water, ensures that each joint is water-tight by debugging each switch of solenoid valve 7 and the reading of flowmeter 16, then will
Water level in water tank 12 adds to required position.
(3), guarantee that the solenoid valve 7 on water-supply-pipe 6 is in off state before water tank 12 plus water, water is added to wait after the completion in next step
Test.
(4), centrifuge test system operation and observation, after system is installed, the acceleration of operation centrifuge to test requirements document
Degree, operation are kept after stablizing, and opens solenoid valve 7 passes through pore water pressure sensor 14 and water tank built in flow instrument, model casing 11
Pore water pressure sensor 15 built in 12 come control water level rising height and speed, when reach requirement water level lifting height and
After completing all predetermined tests, solenoid valve 7 is closed, centrifuge is then turned off.
(5), in the step (4), after the completion of test, if to carry out lower battery of tests, as long as disconnecting all the sensors
With the connection of indoor control system, the connection of the water-supply-pipe 6 between water tank 12 and model casing 11 is disconnected, removes model casing 11, so
Again filling test model afterwards by topped up with water in water tank 12 and repeats step (2) to step (4), until completing all will be into
Capable test.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of centrifugal model test device of achievable Changes in underground water variation control, including oil cylinder, bracket, connection ring,
Connecting plate, water-supply-pipe, model casing and water tank, are bolted between oil cylinder and bracket, and bracket is in inverted " u " shape；Its feature
Be: the water tank is welded by steel plate, and the side of water tank is equipped with anti-dumping inclined clapboard, and water tank upper is equipped with connecting plate,
There are two the holes of 3mm for its back lower place, are connected between oil cylinder and water tank by the anti-torque connection ring being mounted on connecting plate, oil
Differential displacement sensor is installed on cylinder and water tank, differential displacement sensor is connected by communication system with indoor control system,
Water tank can be controlled to move up and down in the range of bracket；The water tank is by several water-supply-pipe link model casees, on water-supply-pipe
It is provided with solenoid valve and flowmeter, solenoid valve passes through terminal box with flowmeter and connects with indoor control system；The model casing
It is made of two parts, model casing bottom has initial water level to control interlayer, and interlayer is one layer of steel plate, steel plate and the weldering of model casing surrounding
It connects, gather small sircle hole on steel plate, and water tank bottom and native case are internally provided with several pore water pressure sensors, and pore water pressure passes
Sensor is connected by terminal box with indoor control system.
2. a kind of centrifugal model test device of achievable Changes in underground water variation control according to claim 1,
It is characterized in that: being the foundation model or side slope model for geotechnical centrifugal model test in the model casing.
3. a kind of centrifugal model test device of achievable Changes in underground water variation control according to claim 1,
Be characterized in that: the steel plate thickness of the interlayer is 3mm, and the diameter of small sircle hole is 1mm on steel plate.
4. a kind of centrifugal model test device of achievable Changes in underground water variation control according to claim 1,
Be characterized in that: the both ends of the water-supply-pipe pass through angle coupling and connect respectively with water tank and model casing.
5. a kind of centrifugal model test device of achievable Changes in underground water variation control according to claim 4,
Be characterized in that: the water-supply-pipe is PU pneumatics hose.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820858575.0U CN208224256U (en) | 2018-06-05 | 2018-06-05 | A kind of centrifugal model test device of achievable Changes in underground water variation control |
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| CN201820858575.0U CN208224256U (en) | 2018-06-05 | 2018-06-05 | A kind of centrifugal model test device of achievable Changes in underground water variation control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133214A (en) * | 2019-05-15 | 2019-08-16 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of experimental rig for the cold area's canal for water conveyance fluctuation in stage of centrifugal field Imitating |
-
2018
- 2018-06-05 CN CN201820858575.0U patent/CN208224256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133214A (en) * | 2019-05-15 | 2019-08-16 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of experimental rig for the cold area's canal for water conveyance fluctuation in stage of centrifugal field Imitating |
| CN110133214B (en) * | 2019-05-15 | 2021-07-13 | 水利部交通运输部国家能源局南京水利科学研究院 | Test device for simulating water level rise and fall of cold region water delivery channel under centrifugal field |
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