CN110133225A - A kind of experimental rig and test method of the performance analysis fisstured flow of centrifuge modelling drought and waterlogging racing - Google Patents
A kind of experimental rig and test method of the performance analysis fisstured flow of centrifuge modelling drought and waterlogging racing Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
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Abstract
The invention discloses the experimental rig and test method of a kind of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow, device includes model casing, arid simulation system, rainfall simulation system, image collecting device, operating condition switching system；Dam body model has been filled in model casing, multiple groups sensor is embedded on dam body model, buries the soil moisture at putting, matric suction, pore water pressure for acquiring dam body model；Arid simulation system realizes the arid simulation of dam body model for carrying out heating dehydration；Rainfall simulation system is sprayed water for providing water source, realizes the rainfall simulation of dam body model；Operating condition switching system, for obtaining the image information of the dam body model of acquisition, discriminance analysis crack spread scenarios are carried out to the crack of dam body model in image, and according to crack spread scenarios, judge whether arid operating condition being switched to rainfall operating condition, according to judging result, issues signal and control arid simulation system, rainfall simulation system work or stop working.
Description
Technical field
The invention belongs to Geotechnical Centrifugal Model Tests to study dam body protection technology field, and in particular to a kind of centrifuge modelling drought and waterlogging
The experimental rig and test method of racing performance analysis fisstured flow.
Background technique
Prolonged arid causes soil body dehydration shrinkage to generate crack, especially in global warming, urban heat land effect and drought
Under the background that damage caused by waterlogging evil increasingly frequently occurs, soil-body landslide phenomenon is increasingly universal.Important composition portion as dam body seepage system
Point, the barrier performance of the cement soil body (bedding, sloping core etc.) is concerning dam infiltration safety, and clay soil is relatively fragile, in arid
Bedding and sloping core are often exposed to outer in the process, will appear crack in continuous drought, the generation in crack destroys the complete of impervious body
Whole property has by the perforative threat in crack in great drought particularly with the bedding of thinner thickness, then meets with drought and waterlogging racing operating condition
When there are serious Seepage Safety hidden danger.
Geotechnical centrifuge is a kind of testing equipment of geotechnical engineering physical simulation experiment, can simulate earth structure stress,
Deformation and failure verifies design scheme, and comparative analysis numerical result is intuitive that engineering operation form is presented, in water conservancy and rock
Native engineering field has biggish application prospect.It is mostly first in Chang Chong but at present for the simulation of special operation condition, in centrifuge test
It is arranged after a certain operating condition under power acceleration and carries out N times of acceleration simulation again, generally model need to be adjusted to Chang Chong when converting operating condition
Power acceleration switches over.
Therefore, it is necessary to develop it is a kind of continue the centrifuge test device that operating condition automatically switches under N times of acceleration, into one
Step is simulated to be of great significance with the practical test result being consistent of engineering.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, the present invention provides a kind of centrifuge modelling drought and waterlogging racing work
Condition analyzes the experimental rig and test method of fisstured flow, can be in lasting N times of acceleration Imitating and switching drought and waterlogging racing work
Condition obtains crack situation of change and reservoir dam slope substrate suction, Pore-Water Pressure during test.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow, including model casing, arid simulation system,
Rainfall simulation system, image collecting device, operating condition switching system；
The model casing uses transparent material, and upper end opening；Dam body model, the dam body model have been filled in the model casing
Including the clay blanket of dam body front, dam body top Clay Microstructure, dam body rear portion pervious bed, dam body bottom pervious bed；
It is embedded with multiple groups sensor on the dam body model, is inhaled for acquiring soil moisture, matrix at the embedded point of dam body model
Power, pore water pressure；
The model casing bottom offers the drainage hole of one or more optional closure or openness, for being convenient for draining examination
It tests；
The arid simulation system realizes the arid simulation of dam body model for carrying out heating dehydration to dam body model；
The rainfall simulation system sprays water for providing water source to dam body model, realizes the rainfall simulation of dam body model；
Described image acquisition device, for carrying out picture collection to dam body model；
The operating condition switching system knows the crack of dam body model in image for obtaining the image information of dam body model
Not Fen Xi crack spread scenarios judge whether arid operating condition being switched to rainfall operating condition and according to crack spread scenarios, according to sentencing
It is disconnected to control arid simulation system, rainfall simulation system work as a result, issuing signal or stop working.
2. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 1, institute
It states operating condition switching system default and first carries out arid operating condition, signal is issued according to judging result, signal output end and relay are converted
The input terminal of switch is connected, and the output end of change-over switch is connected with arid simulation system, rainfall simulation system respectively.
Preferably, the arid simulation system includes xenon long-arc lamp and blower；The xenon long-arc lamp is for simulating
Sunlight is mounted on the model casing upper inside wall；The assembling below xenon long-arc lamp, for accelerate air flowing from
And moisture is accelerated to evaporate.
Preferably, the rainfall simulation system includes water supply and storage case, water pump, water-supply-pipe, spray head；Water supply and storage
Water in case is connected to by water pump with water-supply-pipe, and the outlet connection setting spray head of water-supply-pipe is sprayed water by spray head, realizes dam
The rainfall simulation of body Model.
Further, it is provided with height-adjustable liquid-level switch in the model casing, the liquid-level switch and water pump
Circuit in parallel, for making the water level in the model casing by the work that liquid-level switch controls water pump in rainfall simulation operating condition
Maintain setting height.
Preferably, the experimental rig of the centrifuge modelling drought and waterlogging racing performance analysis fisstured flow, every group
Sensor includes soil moisture sensor, matric suction sensor, pore water pressure sensor.
Preferably, described image acquisition device uses camera, camera.
Preferably, the experimental rig of the centrifuge modelling drought and waterlogging racing performance analysis fisstured flow, it is described
It is provided with draining water tank below model casing bottom drain holes, for collecting the water being discharged from drainage hole；
The drainage hole is provided with the seal plug to match.
Preferably, the dam body model bottom and model casing contact site are equipped with geotextiles, prevent drainage test
When soil particle loss.
Further, the working method of the operating condition switching system includes:
Under arid operating condition, xenon long-arc lamp and blower work are controlled；And the image of image acquisition device is obtained, image is carried out
Crack in processing, identification image, the variation of the fracture width in a period of time in acquired image is compared in analysis, in response to sentencing
Fracture width is identical in image before and after disconnected separated in time, issues instruction control xenon long-arc lamp and blower stops working, and control
Pump working processed, arid operating condition are switched to rainfall operating condition；
Under rainfall operating condition, rise the setting height for reaching liquid-level switch in response to model casing water level inside, liquid-level switch closure is cut
It cuts off the water supply pump circuit, water pump stops working；
Lower infiltration or draining in response to model casing inside water body, water level decreasing are lower than the setting height of liquid-level switch, liquid-level switch
It disconnects, pump circuit connection, water pump is started to work；
And obtain the soil moisture at the embedded point of dam body model that sensor acquires in real time, matric suction, pore water pressure force information.
On the other hand, the present invention also provides a kind of test sides of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow
Method, comprising:
1) reasonable sand material is matched according to engineering site actual conditions decimation stage, filled in model casing with live equal densities and
The dam body model of moisture content, bury multiple groups sensor, every group of sensor include soil moisture sensor, matric suction sensor,
Pore water pressure sensor；
2) water is filled in water supply and storage case, sets pump power, according to beating for test demand preference pattern case bottom drain holes
Push And Release closes；
3) model casing is placed in a suspension bucket of geotechnical centrifuge, counterweight, adjustment figure is placed in another suspension bucket of centrifuge
As acquisition device angle is for shooting the clay blanket of dam body front, dam body top Clay Microstructure；
4) operating condition switching system power supply is opened, the operation g value of centrifuge is set and runing time and opens centrifuge；First done
Non-irrigated operating condition, controls xenon long-arc lamp and blower work, and xenon long-arc lamp heating accelerates air flowing with blower and promotes moisture rapid evaporation；
Image collecting device is set as carrying out an Image Acquisition at regular intervals, and the image of acquisition is carried out gray proces identification,
Compare fracture width in the image of acquisition to change, thinks arid when fracture width is identical in the image of separated in time front and back
It completes, issues program instruction in computer at this time and rainfall operating condition is switched to by relay, control pump working；
5) rainfall operating condition, which carries out initial stage water flow, can go deep into the soil body, will form ponding after soil body saturation, water level constantly rises, and works as water
This closes the switch automatic disconnection pump circuit after liquid-level switch is touched in position；Due to the continuous lower infiltration of water body and draining, soil layer top
Water level can decline, and when being down under liquid-level switch, liquid-level switch is disconnected at this time, continue rainfall simulation, guaranteed water level
Stablize until off-test；
6) the collected data of each group sensor institute are recorded in real time.
The utility model has the advantages that experimental rig and the examination of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow provided by the invention
Proved recipe method, clay body, which is suffered from drought, can generate desciccation crack, and drought and waterlogging racing operating condition occurs at this time, dam body seepage field change dramatically, tradition
Experimental study method mainly carries out test under normal acceleration of gravity or switches back into normal acceleration of gravity in operating condition transformation, and
The variation for visually observing crack determines the opportunity of operating condition transformation, and rarely has drought and waterlogging racing work when being related to continuing N times of acceleration of gravity
Reservoir dam seepage failure simulation test under the automatic conversion of condition, the present invention creatively pass through design centrifuge modelling drought and waterlogging
The experimental rig of racing performance analysis fisstured flow can be obtained the spread scenarios in crack by digital image understanding technology, be sentenced
Determine the degree of simulating drought.Crack can automatically switch to rainfall operating condition after tending towards stability, realize the transformation of drought and waterlogging racing operating condition.It is logical
Dam body under the data analysis drought and waterlogging racing of pore water pressure sensor, moisture transducer and the acquisition of matric suction sensor is crossed to exist
Observed seepage behavior when crack, the result simulated is closer to engineering practice.
Specifically: 1) present invention can continue to complete drought and waterlogging racing work under the conditions of N times of acceleration of gravity in centrifuge
The switching of arid and rainfall in condition analyzes different drought condition to crack in dam body by simulating various different drought and waterlogging racing conditions
Influence, under the conditions of different rainfall intensities, rainfall duration etc. dam body seepage field change.
2) present invention can obtain the parameters such as length, the width in crack online, more precisely analyze crack variation and the soil body
Relationship between matric suction.The pore water pressure that obtains in real time, matric suction, crack progressing Evolution, be accurate point
Influence of the crack to dam seepage flow field is analysed to provide convenience condition, for dam in the case of drought and waterlogging racing maintenance provide theory according to
According to reduce a possibility that dam crash occurs.
3) present invention have many advantages, such as that principle is simple, operate conveniently, monitor fast, can repeatedly utilize, to test serious forgiveness high.
Detailed description of the invention
Fig. 1 is the structural representation of the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow in embodiment
Figure；
Fig. 2 is drought and waterlogging operating condition automatic switching apparatus line map of the invention.
In figure: model casing 1, dam body model 2, water supply and storage case 3, water pump 4, water-supply-pipe 5, atomizer 6, camera 7, long arc
Xenon lamp 8, blower 9, liquid-level switch 10, draining water tank 11, drainage hole 12, hook 13, soil moisture sensor 14, matric suction
Sensor 15, pore water pressure sensor 16.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can further include different values.It should also be noted that similar mark
Number and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then subsequent
It does not need that it is further discussed in attached drawing.
The present invention relates to the experimental rig and test method of a kind of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow,
The device includes model casing, arid simulation system, rainfall simulation system, image collecting device, operating condition switching system, is tried choosing
It tests after material prepares model, debugging test equipment and carries out centrifugal test.
The model casing 1 uses transparent material, and upper end opening；Dam body model 2 has been filled in the model casing 1, it is described
Dam body model 2 includes the clay blanket of dam body front, dam body top Clay Microstructure, dam body rear portion pervious bed, dam body bottom pervious bed；
Preferably, top clay core body and bottom sand material pervious bed；
It is embedded with multiple groups sensor on the dam body model 2, for acquiring soil moisture, matrix at the embedded point of dam body model 2
Suction, pore water pressure；
1 bottom of model casing offers the drainage hole 12 of one or more optional closure or openness, drains for being convenient for
Test；
The arid simulation system realizes the arid simulation of dam body model 2 for carrying out heating dehydration to dam body model 2；
The rainfall simulation system sprays water for providing water source to dam body model 2, realizes the rainfall simulation of dam body model 2；
Described image acquisition device, for carrying out picture collection to dam body model 2；
The operating condition switching system carries out the crack of dam body model 2 in image for obtaining the image information of dam body model 2
Discriminance analysis crack spread scenarios, and according to crack spread scenarios, judge whether arid operating condition being switched to rainfall operating condition, according to
Judging result issues signal and controls arid simulation system, rainfall simulation system work or stop working.
Further, the operating condition switching system default first carries out arid operating condition, issues signal, signal according to judging result
Output end is connected with the input terminal of relay change-over switch, the output end of change-over switch respectively with arid simulation system, rainfall mould
Quasi- system is connected.
Further, the model casing 1 is made of transparent organic glass, for filling for dam body model, the dam body
Model 2 is made using land waste slag charge and is included top clay core body and bottom sand material pervious bed.
Further, the arid simulation system includes xenon long-arc lamp 8 and blower 9；The xenon long-arc lamp 8 is for simulating
Sunlight is mounted on 1 upper inside wall of model casing；The blower 9 is mounted on 8 lower section of xenon long-arc lamp, for accelerating air stream
It moves that moisture is accelerated to evaporate.
The rainfall simulation system includes water supply and storage case 3, water pump 4, water-supply-pipe 5, atomizer 6；In water supply and storage case 3
Water be connected to water-supply-pipe 5 by water pump 4, the outlet of water-supply-pipe 5, which connects, is arranged atomizer 6, is sprayed by atomizer 6
Water realizes the rainfall simulation of dam body model 2.
Height-adjustable liquid-level switch 10, the circuit of the liquid-level switch 10 and water pump 4 are provided in the model casing 1
Parallel connection, for making the water level in the model casing 1 by the work that liquid-level switch 10 controls water pump 4 in rainfall simulation operating condition
Maintain setting height.
Every group of sensor includes soil moisture sensor 14, matric suction sensor 15, pore water pressure sensor 16.
It is provided with draining water tank below the model casing bottom drain holes, for collecting the water being discharged from drainage hole；Institute
It states drainage hole and is provided with the seal plug to match.
Preferably, the dam body model bottom and model casing contact site are equipped with geotextiles, prevent drainage test
When soil particle loss.
Specifically, the working method of operating condition switching system are as follows:
Under arid operating condition, controls xenon long-arc lamp 8 and blower 9 works；And obtain the image of image acquisition device, to image into
The variation of the fracture width in a period of time in acquired image is compared in crack in row processing, identification image, analysis, in response to
Judge that fracture width is identical in the image of separated in time front and back, issues instruction control xenon long-arc lamp 8 and blower 9 stops working,
And the work of water pump 4 is controlled, arid operating condition is switched to rainfall operating condition,
Under rainfall operating condition,
Rise the setting height for reaching liquid-level switch 10 in response to 1 water level inside of model casing, liquid-level switch 10 is closed, and cuts off water pump
4 circuits, water pump 4 stop working；
Lower infiltration or draining in response to 1 inside water body of model casing, water level decreasing are lower than the setting height of liquid-level switch 10, and liquid level is opened
It closes 10 to disconnect, 4 circuit communication of water pump, water pump 4 is started to work；
Soil moisture, matric suction, pore water pressure force information at the embedded point of the dam body model 2 that acquisition sensor acquires in real time.
The test method by image recognition analysis crack spread scenarios realize Ng acceleration under drought and waterlogging racing operating condition from
Turn is changed, and is carried out crack influence by pore pressure gauge, soil moisture sensor, matric suction sensor institute's measured data and seeped
The analysis of stream.The present invention can analyze influence of the crack to seepage flow under prototype dam slope drought and waterlogging racing operating condition, be reservoir dam safety
Operation, emergency prevention and decision provide technical support.
Embodiment one
The experimental rig of the centrifuge modelling drought and waterlogging racing performance analysis fisstured flow of this example is as shown in Figure 1, include model casing
1, water supply and storage case 3, draining water tank 11.
Dam body model 2 is filled in the model casing 1, dam body model 2 is oblique including clay blanket, upstream face clay before dam
Pervious bed, dam bottom pervious bed behind wall, dam.The argillic horizon of the present embodiment is preferably using the clay system of dam body digging in-situ to be simulated
At first carrying out the measurement of soil body basic parameter before test, including soil body maximum dry density, optimum moisture content, liquid limit, plastic limit, full
With infiltration coefficient etc..The grain composition and initial aqueous rate of the clay and the grain composition of undisturbed soil and initial aqueous rate phase
Together.The placement grinding layered of dam body model 2 carries out, can be before filling beginning transparent in order to control each filling height
Height is marked on organic glass outer wall, vertical and horizontal directions are case marker note with 5cm.To avoid placement in layers generation from filling
Seam by soil body surface feather plucking after every completion is once filled, then carries out one layer and fills.Since clay and environment box outer wall have
The possible defective tightness of machine glass contact, the clay that need to will be close to outer wall emphatically in modelling roll repeatedly, accomplish as far as possible
It leaves no gaps, one layer of geomembrane can be adhered on the inside of outer wall and front end organic glass when necessary, antiseepage can be played the role of.
One layer of geotextiles are laid in 2 bottom of dam body model, the loss of soil particle when preventing drainage test.Upstream, the length of downstream dam slope, dam
The width on top, dam zoning are converted by the case history reduced scale of simulation and are determined.
Model casing 1 is connected as one with water supply and storage case 3 by glass cement, and 3 bottom of water supply and storage case is fixed with water pump 4,
Water pump 4 can select according to demand in advance for water power, and what is be connected with water pump 4 is water-supply-pipe 5, and there are three mists for installation on water-supply-pipe 5
Change spray head 6.Three atomizers 6 are installed in model casing 1 and keep left position, pervious bed after avoiding rainfall from dropping down onto dam as far as possible.
Xenon long-arc lamp 8 is installed, the lower position of xenon long-arc lamp 8 is equipped with blower 9, is located at 9 lower section of blower inside model casing 1
The liquid-level switch 10 that can be can be adjusted up and down in height is installed, xenon long-arc lamp 8 is equipped with awning with blower 9 and blocks, and prevents rainfall
Middle rainwater, which is sprayed on drying equipment, causes short circuit, and the intensity of illumination of xenon long-arc lamp 8 and 9 wind speed of blower are adjustable in arid.
In the present embodiment, described image acquisition device uses camera 7, and 1 inside overhead of model casing is hung with time exposure bat
According to camera 7, photo captured by camera 7 directly can check and analyze in a computer.7 camera lens of camera is equipped with the antifog patch of waterproof
Film.
1 bottom of model casing is set there are three drainage hole 12, and drainage hole 12 is the internal screw thread trepanning equipped with corresponding screw.In mould
Molding box 1 hangs with draining water tank 11 below, using two 13 fastenings of hook between model casing 1 and draining water tank 11.
It is embedded with four groups of sensors in the present embodiment on dam body model 2 altogether, is located in the middle part of clay blanket, Clay Microstructure
Middle part and bottom and dam body bottom pervious bed upstream end；Every group of sensor includes a matric suction sensor 15 and divides
It She Zhi not be passed in a soil moisture of 15 front of the matric suction sensor (in the present invention using towards downstream direction as front)
Sensor 14, the pore water pressure sensor 16 that 15 rear of matric suction sensor is set.Hole in every group of sensor
Water pressure sensor 16 and soil moisture sensor 14 are respectively 5cm at a distance from matric suction sensor 15.
The model casing 1 of the present embodiment is made of the five pieces of poly (methyl methacrylate) plates in front, rear, left and right and bottom plate, the organic glass in two pieces of front and back
Glass plate is identical, thickness 3cm, length 100cm, height 80cm, and the two pieces of poly (methyl methacrylate) plates in left and right are identical, thickness 3cm, width 60cm,
Height 80cm, plexiglass base plate thickness 3cm, length 100cm, width 60cm.Water supply and storage case 3 is by front, rear, left and right, bottom plate
And six pieces of poly (methyl methacrylate) plates of top plate are made, two pieces of front and back poly (methyl methacrylate) plate is identical, thickness 3cm, length 40cm, height 30cm, left
Right two pieces of poly (methyl methacrylate) plates are identical, thickness 3cm, width 60cm, height 30cm, plexiglass base plate and top plate thickness 3cm, length
40cm, width 60cm.It is provided with the circular hole of diameter 3cm at the top of 3 left side organic glass of water supply and storage case for drawing water-supply-pipe 5, supplies
Diameter 5cm circular hole is provided with for testing preceding water filling on the left of 3 top organic glass of water water tank.Drain water tank 11 by it is forward and backward,
Left and right and 5 pieces of poly (methyl methacrylate) plates of bottom plate are made, and two pieces of front and back poly (methyl methacrylate) plate is identical, thickness 3cm, length 100cm, height
15cm, the two pieces of poly (methyl methacrylate) plates in left and right are identical, thickness 3cm, width 60cm, and height 15cm, plexiglass base plate thickness 3cm are long
Spend 100cm, width 60cm.
In some embodiments, drought and waterlogging operating condition automatic switching apparatus route is as shown in Figure 2.Route include alternating-current power supply,
Master switch, computer, driver module, relay regulating switch, xenon long-arc lamp, blower, water pump, protection capacitor and liquid level
Switch.Wherein the xenon long-arc lamp under arid simulation system uses form in parallel with blower, water pump in rainfall simulation system and
Liquid-level switch also uses form in parallel.Since water pump route after liquid-level switch closure can be short-circuit, match on water pump route
A standby protection capacitor.Arid system is connect with rainfall system using parallel way, is received by relay from computer
Instruction carries out route choosing.Determine that the basis when process stops is digital image understanding technology point in arid simulation system
The crack situation of change of analysis.
Embodiment two
The present embodiment is the test of the experimental rig of the centrifuge modelling drought and waterlogging racing performance analysis fisstured flow in embodiment one
Method, comprising the following steps:
1) reasonable sand material is matched according to engineering site actual conditions decimation stage, filled in model casing with live equal densities and
The dam body model of moisture content buries multiple groups sensor, and every group of sensor includes soil moisture sensor 14, matric suction sensor
15, pore water pressure sensor 16；
2) water is filled in water supply and storage case, sets pump power, according to beating for test demand preference pattern case bottom drain holes
Push And Release closes；
3) model casing is placed in a suspension bucket of geotechnical centrifuge, counterweight, adjustment figure is placed in another suspension bucket of centrifuge
As acquisition device camera angle is for shooting the clay blanket of dam body front, dam body top Clay Microstructure；
4) operating condition switching system power supply is opened, the operation g value of centrifuge is set and runing time and opens centrifuge；First done
Non-irrigated operating condition, controls xenon long-arc lamp 8 and blower 9 works, and xenon long-arc lamp heating accelerates air flowing with blower and promotes moisture rapid steaming
Hair；Image collecting device is set as the Image Acquisition of progress in every 30 minutes, and the image of acquisition is called in MATLAB and carries out gray scale
Processing is compared fracture width in the image of acquisition and is changed, and thinks when fracture width is identical in the image of separated in time front and back
Arid is completed, and issues program instruction in computer at this time by relay and is switched to rainfall operating condition, control water pump 4 works；
5) rainfall operating condition, which carries out initial stage water flow, can go deep into the soil body, but will form ponding after soil body saturation, and water level constantly rises, and works as water
This closes the switch automatic disconnection 4 circuit of water pump after liquid-level switch is touched in position；Due to the continuous lower infiltration of water body and draining, soil layer top
Water level can decline, and when being down under liquid-level switch, liquid-level switch is disconnected at this time, continue rainfall simulation, guaranteed water level
Stablize until off-test；
6) the collected data of each group sensor institute are recorded in real time.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the present invention and simplified description for ease of description, rather than indicates or imply signified device
Or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as in present invention protection
The limitation of appearance.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow, which is characterized in that including model casing,
Arid simulation system, rainfall simulation system, image collecting device, operating condition switching system；
The model casing uses transparent material, and upper end opening；Dam body model, the dam body model have been filled in the model casing
Including the clay blanket of dam body front, dam body top Clay Microstructure, dam body rear portion pervious bed, dam body bottom pervious bed；
It is embedded with multiple groups sensor on the dam body model, is inhaled for acquiring soil moisture, matrix at the embedded point of dam body model
Power, pore water pressure；
The model casing bottom offers the drainage hole of one or more optional closure or openness, for being convenient for draining examination
It tests；
The arid simulation system realizes the arid simulation of dam body model for carrying out heating dehydration to dam body model；
The rainfall simulation system sprays water for providing water source to dam body model, realizes the rainfall simulation of dam body model；
Described image acquisition device, for carrying out picture collection to dam body model；
The operating condition switching system knows the crack of dam body model in image for obtaining the image information of dam body model
Not Fen Xi crack spread scenarios judge whether arid operating condition being switched to rainfall operating condition and according to crack spread scenarios, according to sentencing
It is disconnected to control arid simulation system, rainfall simulation system work as a result, issuing signal or stop working.
2. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 1, feature
It is, the operating condition switching system default first carries out arid operating condition, issues signal, signal output end and relay according to judging result
The input terminal of device change-over switch is connected, and the output end of change-over switch is connected with arid simulation system, rainfall simulation system respectively.
3. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 1, feature
It is, the arid simulation system includes xenon long-arc lamp and blower；The xenon long-arc lamp is used for simulated solar irradiation, is mounted on described
Model casing upper inside wall；The assembling is below xenon long-arc lamp, for accelerating air flowing to accelerate moisture to evaporate.
4. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 1, feature
It is, the rainfall simulation system includes water supply and storage case, water pump, water-supply-pipe, spray head；Water in water supply and storage case passes through water pump
It is connected to water-supply-pipe, the outlet connection setting spray head of water-supply-pipe is sprayed water by spray head, realizes the rainfall mould of dam body model
It is quasi-.
5. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 4, feature
It is, height-adjustable liquid-level switch is provided in the model casing, and the circuit in parallel of the liquid-level switch and water pump is used for
In rainfall simulation operating condition, the water level in the model casing is set to maintain setting by the work that liquid-level switch controls water pump high
Degree.
6. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 1, feature
It is, every group of sensor includes soil moisture sensor, matric suction sensor, pore water pressure sensor；
And/or described image acquisition device uses camera, camera.
7. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 1, feature
It is, is provided with draining water tank below the model casing bottom drain holes, for collects the water being discharged from drainage hole；
And/or the drainage hole is provided with the seal plug to match.
8. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 4, feature
It is, the dam body model bottom and model casing contact site are equipped with geotextiles, the loss of soil particle when preventing drainage test.
9. the experimental rig of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow according to claim 4, feature
It is, the working method of the operating condition switching system includes:
Under arid operating condition, xenon long-arc lamp and blower work are controlled；And the image of image acquisition device is obtained, image is carried out
Crack in processing, identification image, the variation of the fracture width in a period of time in acquired image is compared in analysis, in response to sentencing
Fracture width is identical in image before and after disconnected separated in time, issues instruction control xenon long-arc lamp and blower stops working, and control
Pump working processed, arid operating condition are switched to rainfall operating condition；
Under rainfall operating condition, rise the setting height for reaching liquid-level switch in response to model casing water level inside, liquid-level switch closure is cut
It cuts off the water supply pump circuit, water pump stops working；
Lower infiltration or draining in response to model casing inside water body, water level decreasing are lower than the setting height of liquid-level switch, liquid-level switch
It disconnects, pump circuit connection, water pump is started to work.
10. a kind of test method of centrifuge modelling drought and waterlogging racing performance analysis fisstured flow characterized by comprising
1) reasonable sand material is matched according to engineering site actual conditions decimation stage, filled in model casing with live equal densities and
The dam body model of moisture content, bury multiple groups sensor, every group of sensor include soil moisture sensor, matric suction sensor,
Pore water pressure sensor；
2) water is filled in water supply and storage case, sets pump power, according to beating for test demand preference pattern case bottom drain holes
Push And Release closes；
3) model casing is placed in a suspension bucket of geotechnical centrifuge, counterweight, adjustment figure is placed in another suspension bucket of centrifuge
As acquisition device angle is for shooting the clay blanket of dam body front, dam body top Clay Microstructure；
4) operating condition switching system power supply is opened, the operation g value of centrifuge is set and runing time and opens centrifuge；First done
Non-irrigated operating condition, controls xenon long-arc lamp and blower work, and xenon long-arc lamp heating accelerates air flowing with blower and promotes moisture rapid evaporation；
Image collecting device is set as carrying out an Image Acquisition at regular intervals, and the image of acquisition is carried out gray proces identification,
Compare fracture width in the image of acquisition to change, thinks arid when fracture width is identical in the image of separated in time front and back
It completes, issues program instruction in computer at this time and rainfall operating condition is switched to by relay, control pump working；
5) rainfall operating condition, which carries out initial stage water flow, can go deep into the soil body, will form ponding after soil body saturation, water level constantly rises, and works as water
This closes the switch automatic disconnection pump circuit after liquid-level switch is touched in position；Due to the continuous lower infiltration of water body and draining, soil layer top
Water level can decline, and when being down under liquid-level switch, liquid-level switch is disconnected at this time, continue rainfall simulation, guaranteed water level
Stablize until off-test；
6) the collected data of each group sensor institute are recorded in real time.
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| CN201910432665.2A CN110133225A (en) | 2019-05-23 | 2019-05-23 | A kind of experimental rig and test method of the performance analysis fisstured flow of centrifuge modelling drought and waterlogging racing |
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| CN202210962118.7A Pending CN115267138A (en) | 2019-05-23 | 2019-05-23 | Test device and test method for simulation analysis of fracture seepage of centrifugal machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112964587A (en) * | 2021-02-08 | 2021-06-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Centrifugal model test device and method for simulating dam break of concrete panel dam |
| CN113219549A (en) * | 2021-05-10 | 2021-08-06 | 昆明理工大学 | Simulation device for dam break of tailing pond caused by seepage and piping damage |
| CN113960699A (en) * | 2021-09-27 | 2022-01-21 | 中国水利水电科学研究院 | Method for judging whether drought or flood is in sudden turning grade or not |
| CN114354694A (en) * | 2021-12-14 | 2022-04-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Device and method for visualizing drought and waterlogging rush turning induced clay paving hydraulic fracture |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996025663A1 (en) * | 1995-02-17 | 1996-08-22 | British Nuclear Fuels Plc | Simulation testing of a capping for a waste disposal site |
| CN103954740A (en) * | 2014-04-11 | 2014-07-30 | 中国科学院武汉岩土力学研究所 | Expansive-soil slope hygroscopic deformation model experiment method and system |
| CN104034863A (en) * | 2014-06-26 | 2014-09-10 | 中国工程物理研究院总体工程研究所 | Freezing-thawing centrifugal model box in freezing-thawing deformation centrifugal simulation system |
| CN104142356A (en) * | 2014-06-26 | 2014-11-12 | 水利部交通运输部国家能源局南京水利科学研究院 | Centrifugal simulation system for freeze thawing deformation of water conveyance canal in salty-cold region |
| CN106405051A (en) * | 2016-09-30 | 2017-02-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Simulation test device for dam slope of reservoir under condition of sudden turn of drought and flood and test method |
| CN206096121U (en) * | 2016-09-06 | 2017-04-12 | 山西省交通科学研究院 | Visual test device that dry -wet cycle side slope was destroyed under simulation vibratory action |
| US20170227676A1 (en) * | 2016-02-04 | 2017-08-10 | Hong Kong University Of Science And Technology | Centrifuge environmental chamber |
| CN107590349A (en) * | 2017-09-30 | 2018-01-16 | 湘潭大学 | Concrete structure member crevices divide the Injury degree method of shape |
| CN108303516A (en) * | 2018-02-23 | 2018-07-20 | 湖州职业技术学院 | It is a kind of geotechnique centrifugal field in rainfall and SEA LEVEL VARIATION Work condition analogue device and method |
| CN108398453A (en) * | 2018-02-08 | 2018-08-14 | 中国科学院寒区旱区环境与工程研究所 | A kind of three samples linkage freezing-thawing test system for simulating soil body frozen-thaw process in real time |
| CN108828189A (en) * | 2018-06-21 | 2018-11-16 | 成都理工大学 | A kind of method that simulated groundwater induces soil slope instability |
| CN108956946A (en) * | 2018-06-26 | 2018-12-07 | 中国矿业大学 | Tunnel-side slope system experimental rig and method under simulated rainfall geological process |
| CN109083207A (en) * | 2018-09-25 | 2018-12-25 | 滨州学院 | A kind of test method and device of geotechnical centrifuge simulation drying and watering cycle process |
| CN109342486A (en) * | 2018-10-09 | 2019-02-15 | 水利部交通运输部国家能源局南京水利科学研究院 | The experimental rig of the wet dry Frozen-thawed cycled of super gravity field Imitating expansive soil channel |
| CN109682672A (en) * | 2019-01-22 | 2019-04-26 | 成都理工大学 | A kind of system and method that simulation deep layer Toppling Deformation is developed and caused disaster |
| CN109738523A (en) * | 2019-01-24 | 2019-05-10 | 西京学院 | A kind of geotechnical engineering wall-rock crack detection method |
-
2019
- 2019-05-23 CN CN201910432665.2A patent/CN110133225A/en active Pending
- 2019-05-23 CN CN202210962118.7A patent/CN115267138A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996025663A1 (en) * | 1995-02-17 | 1996-08-22 | British Nuclear Fuels Plc | Simulation testing of a capping for a waste disposal site |
| CN103954740A (en) * | 2014-04-11 | 2014-07-30 | 中国科学院武汉岩土力学研究所 | Expansive-soil slope hygroscopic deformation model experiment method and system |
| CN104034863A (en) * | 2014-06-26 | 2014-09-10 | 中国工程物理研究院总体工程研究所 | Freezing-thawing centrifugal model box in freezing-thawing deformation centrifugal simulation system |
| CN104142356A (en) * | 2014-06-26 | 2014-11-12 | 水利部交通运输部国家能源局南京水利科学研究院 | Centrifugal simulation system for freeze thawing deformation of water conveyance canal in salty-cold region |
| US20170227676A1 (en) * | 2016-02-04 | 2017-08-10 | Hong Kong University Of Science And Technology | Centrifuge environmental chamber |
| CN206096121U (en) * | 2016-09-06 | 2017-04-12 | 山西省交通科学研究院 | Visual test device that dry -wet cycle side slope was destroyed under simulation vibratory action |
| CN106405051A (en) * | 2016-09-30 | 2017-02-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Simulation test device for dam slope of reservoir under condition of sudden turn of drought and flood and test method |
| CN107590349A (en) * | 2017-09-30 | 2018-01-16 | 湘潭大学 | Concrete structure member crevices divide the Injury degree method of shape |
| CN108398453A (en) * | 2018-02-08 | 2018-08-14 | 中国科学院寒区旱区环境与工程研究所 | A kind of three samples linkage freezing-thawing test system for simulating soil body frozen-thaw process in real time |
| CN108303516A (en) * | 2018-02-23 | 2018-07-20 | 湖州职业技术学院 | It is a kind of geotechnique centrifugal field in rainfall and SEA LEVEL VARIATION Work condition analogue device and method |
| CN108828189A (en) * | 2018-06-21 | 2018-11-16 | 成都理工大学 | A kind of method that simulated groundwater induces soil slope instability |
| CN108956946A (en) * | 2018-06-26 | 2018-12-07 | 中国矿业大学 | Tunnel-side slope system experimental rig and method under simulated rainfall geological process |
| CN109083207A (en) * | 2018-09-25 | 2018-12-25 | 滨州学院 | A kind of test method and device of geotechnical centrifuge simulation drying and watering cycle process |
| CN109342486A (en) * | 2018-10-09 | 2019-02-15 | 水利部交通运输部国家能源局南京水利科学研究院 | The experimental rig of the wet dry Frozen-thawed cycled of super gravity field Imitating expansive soil channel |
| CN109682672A (en) * | 2019-01-22 | 2019-04-26 | 成都理工大学 | A kind of system and method that simulation deep layer Toppling Deformation is developed and caused disaster |
| CN109738523A (en) * | 2019-01-24 | 2019-05-10 | 西京学院 | A kind of geotechnical engineering wall-rock crack detection method |
Non-Patent Citations (4)
| Title |
|---|
| CHARLES W.W.NG: "The state-of-the-art centrifuge modelling of geotechnical problems at HKUST", 《JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A》 * |
| 李文杰等: "干湿循环过程中壤质黏土干缩裂缝的开闭规律", 《农业工程学报》 * |
| 邢义川等: "A膨胀土地基增湿变形的离心模型试验研究", 《西北农林科技大学学报》 * |
| 黎伟等: "湿干循环下压实膨胀土裂隙扩展规律研究", 《岩土工程学报》 * |
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| CN111855443A (en) * | 2020-08-20 | 2020-10-30 | 昆明理工大学 | Experimental device for monitoring whole process of instability and disaster of bulk material accumulation dam |
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| CN113960699A (en) * | 2021-09-27 | 2022-01-21 | 中国水利水电科学研究院 | Method for judging whether drought or flood is in sudden turning grade or not |
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| CN114354694B (en) * | 2021-12-14 | 2024-05-17 | 水利部交通运输部国家能源局南京水利科学研究院 | Device and method for visualizing hydraulic fracturing of clay pavement induced by drought and waterlogging |
| CN115359713A (en) * | 2022-06-02 | 2022-11-18 | 安徽省建筑科学研究设计院 | Underground water buoyancy model system |
| CN117686686A (en) * | 2023-12-13 | 2024-03-12 | 水利部交通运输部国家能源局南京水利科学研究院 | System and method for monitoring clay shrinkage crack development in drought environment |
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Application publication date: 20190816 |