CN111551691A - Multifunctional side slope model test device - Google Patents
Multifunctional side slope model test device Download PDFInfo
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- CN111551691A CN111551691A CN202010419971.5A CN202010419971A CN111551691A CN 111551691 A CN111551691 A CN 111551691A CN 202010419971 A CN202010419971 A CN 202010419971A CN 111551691 A CN111551691 A CN 111551691A
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 143
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000003673 groundwater Substances 0.000 claims abstract description 18
- 238000004088 simulation Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 35
- 230000008569 process Effects 0.000 description 19
- 239000002689 soil Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 238000000917 particle-image velocimetry Methods 0.000 description 9
- 238000009991 scouring Methods 0.000 description 9
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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Abstract
The invention discloses a multifunctional slope model test device, which comprises a model box and an underground water simulation system, wherein the model box comprises a metal frame, a bottom plate, a pair of transparent plates and a pair of baffles, wherein the bottom plate, the pair of transparent plates and the pair of baffles are arranged on the metal frame; the underground water simulation system comprises a side water injection tank, a side water permeable plate, a bottom water injection tank, a bottom water permeable plate, a booster pump and a water delivery pipe; wherein, the baffle that is close to side porous disk sets up a plurality of overflow mouths from top to bottom, and an overflow mouth department sets up a cock body, is equipped with the delivery port on the bottom plate, and a plurality of overflow mouths, side porous disk, delivery port all belong to side water injection tank. The invention provides a groundwater simulation system, which can realize multifunctional tests by combining a rainfall system and the like to obtain more comprehensive data.
Description
Technical Field
The invention relates to the field of geotechnical engineering testing, in particular to a multifunctional side slope model testing device.
Background
Landslide is often caused by rainfall, and the action of water is closely related to the landslide, so that the research on the slope under the action of rainfall has great theoretical significance and engineering value. Compared with a large-scale test on site, the indoor model test has the advantages of low cost, short time, convenience in operation, controllability of weather conditions such as rainfall and the like, and the large-scale test on site has the defects of site restriction, unpredictable weather, inconvenience in observation, high cost and the like. Therefore, the slope research can be carried out by adopting an indoor model test, and the obtained result can provide an important theoretical basis for engineering practice.
At present, research on geotechnical side slopes mainly focuses on aspects of rainfall, scouring and the like, and at present, indoor model test devices for researching side slopes at home and abroad are generally single in function, influence of various factors cannot be considered in the test process, and obtained data are not comprehensive.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
Still another object of the present invention is to provide a multifunctional side slope model test apparatus, which provides a groundwater simulation system, and can combine a rainfall system and the like to realize multifunctional tests, so as to obtain more comprehensive data.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a multifunctional slope model testing apparatus comprising:
the model box comprises a metal frame, a bottom plate, a pair of transparent plates and a pair of baffles, wherein the bottom plate, the pair of transparent plates and the pair of baffles are arranged on the metal frame, the pair of transparent plates and the pair of baffles are arranged on the side face of the metal frame, the pair of transparent plates are oppositely arranged and are provided with coordinate grids, the pair of baffles are also oppositely arranged, and the height of one baffle is lower than that of the metal frame;
the underground water simulation system comprises a side water injection tank, a side water permeable plate, a bottom water injection tank, a bottom water permeable plate, a booster pump and a water delivery pipe, wherein the side water permeable plate is arranged in the model box close to the baffle plate and divides the model box into the side water injection tanks;
wherein, be close to the baffle of side porous disk sets up a plurality of overflow mouths from top to bottom, and an overflow mouth department sets up a cock body, be equipped with the delivery port on the bottom plate, a plurality of overflow mouths the side porous disk the delivery port all belongs to side water injection tank.
Preferably, the method further comprises the following steps:
the rainfall system comprises a rainfall cover plate, rainfall pipes and rainfall spray heads, wherein the rainfall cover plate is detachably arranged at the top of the model box, strip-shaped holes are formed in the rainfall cover plate, the rainfall pipes are laid on the rainfall cover plate, and the rainfall spray heads are arranged on the rainfall pipes at intervals.
Preferably, the method further comprises the following steps:
the loading system comprises a door type reaction frame, an oil cylinder, a connecting rod and a loading plate, wherein the door type reaction frame is used for the model box to pass through, the connecting rod vertically penetrates through the strip-shaped hole, the oil cylinder is connected with the upper end of the connecting rod, and the loading plate is arranged at the lower end of the connecting rod.
Preferably, the method further comprises the following steps:
and the sliding system comprises a sliding rail and a pulley, the sliding rail is arranged below the model box, and the pulley is arranged at the bottom of the model box and is arranged in the sliding rail in a sliding manner.
Preferably, the method further comprises the following steps:
the drainage collection system comprises a drainage filter tank and a water collection tank, wherein the drainage filter tank is arranged at the bottom of the model box and is just opposite to the bottom water injection tank, the water collection tank is positioned under the drainage filter tank, and scales are arranged in the water collection tank.
Preferably, the method further comprises the following steps:
the PIV data acquisition system comprises a high-speed camera and a computer, wherein the high-speed camera is arranged on a tripod and is opposite to the transparent plate, and the high-speed camera is connected with the computer.
Preferably, the rainfall system still includes cistern, rainfall control cabinet, water pump, flowmeter, the cistern with the rainfall control cabinet all sets up the outside of mold box, the water pump sets up in the cistern and with rainfall pipe intercommunication, the flowmeter sets up on the rainfall pipe, still be equipped with the valve on the rainfall pipe, the rainfall apron is including closing the first plate body and the second plate body that can dismantle the setting, the bar hole is strideed across first plate body with the second plate body.
Preferably, the groundwater simulation system further comprises a water supply tank, the water supply tank is arranged outside the model box, and the other end of the water delivery pipe is communicated with the water supply tank.
Preferably, the mold box further comprises at least one support rod, the support rod is arranged above one baffle, the height of the baffle is lower than that of the metal frame, and two ends of the support rod are connected with the mold box through nuts.
Preferably, the transparent plate is tempered glass.
The invention at least comprises the following beneficial effects:
the device has complete functions and simple and easy operation, can consider various factors in the test process and simulate the rainfall slope model test under the combined action of various conditions, has more comprehensive consideration of influence factors, and can improve the reliability of slope research results.
The toughened glass with the coordinate grids is arranged at the front and the rear of the model box, so that the whole test process and the change condition of the soil body of the side slope can be well observed, and the sliding condition of the side slope and the seepage condition of underground water can be accurately recorded by combining a PIV data acquisition system.
The two ends of the support rod of the model box are fastened on the metal frame by nuts, so that the model box is convenient to disassemble, the support rod can be disassembled when a side slope model is filled, workers can conveniently go in and out, and the support rod can be assembled before side slope loading is carried out so as to strengthen the lateral supporting force of the model box.
The model box of the invention belongs to a plurality of overflow ports reserved on a baffle of a lateral water injection box, can realize that a water head is kept unchanged during groundwater seepage simulation, the overflow ports with different heights correspond to the water heads with different heights, and the friction resistance can be increased by treating the plug body and the overflow ports with soft silica gel, so that the plug body is not easy to slide off in a plugging state and water seepage is avoided. The side porous disk and the bottom porous disk can realize that the side slope model all receives groundwater seepage effect at side and bottom. The booster pump is arranged on the water delivery pipe of the bottom water injection tank, so that different sizes of confined water heads can be realized according to test requirements, and a constant water head can also be realized without pressurization.
The lateral permeable plate and the bottom permeable plate are respectively composed of the supporting plate, the porous stainless steel plate and the permeable film, so that the permeable plate can have enough strength, and the permeable plate can have a filtering function of permeating water but not permeating soil.
The rainfall cover plate is provided with the strip-shaped holes, the strip-shaped holes crossing the first plate body and the second plate body are detachable, and a connecting rod of a loading system can penetrate through the strip-shaped holes and move along the length direction of the strip-shaped holes so as to load different positions of a side slope.
The drainage filter tank can separate the lost soil and water, and the drainage filter tank can be taken out of the model tank independently, so that the filtered soil can be conveniently collected to measure the scouring amount of the side slope. The inboard scale that marks of header tank makes things convenient for to make statistics of the rainwater of collecting.
The invention designs the model box and the door type counterforce frame into a whole, and can provide enough supporting force for the test loading process.
The invention can simultaneously consider the influences of rainfall, groundwater seepage and slope top loading in the test process, and develop the slope model test research under the combined action of rainfall, groundwater seepage and loading.
The bottom of the model box is provided with the pulley and the slide rail, so that the model box body can slide conveniently to load different positions of the side slope.
The loading system, the rainfall system and the drainage collection system can be freely disassembled, and the disassembly, the transportation and the assembly of the whole device are facilitated.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of the overall structure of one embodiment of the present invention;
FIG. 2 is a left side view of one embodiment of the present invention;
FIG. 3 is a right side view of one embodiment of the present invention;
FIG. 4 is a top view of the mold box of one of the embodiments of the present invention;
FIG. 5 is a bottom view of the rain cover according to one embodiment of the present invention;
fig. 6 is a schematic structural diagram of the rainfall system according to one embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof. In the description of the present invention, the terms "transverse," "longitudinal," "axial," "radial," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships that are illustrated in the accompanying drawings, which are used for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the present invention.
As shown in fig. 1 to 6, the present invention provides a multifunctional side slope model test apparatus, comprising:
the model box comprises a metal frame 11, a bottom plate 12 arranged on the metal frame 11, a pair of transparent plates 13 and a pair of baffles 14, wherein the pair of transparent plates 13 and the pair of baffles 14 are arranged on the side surface of the metal frame 11, the pair of transparent plates 13 are oppositely arranged and are provided with coordinate grids, the pair of baffles 14 are also oppositely arranged, and the height of one baffle 14 is lower than that of the metal frame 11;
the underground water simulation system comprises a side water injection tank 21, a side water permeable plate 22, a bottom water injection tank 23, a bottom water permeable plate 24, a booster pump 25 and a water delivery pipe 26, wherein the side water permeable plate 22 is arranged in the model box close to the baffle 14 and divides the model box into the side water injection tank 21, the bottom water injection tank 23 is arranged below the bottom plate 12 close to the side water injection tank 21, a window is arranged in a region where the bottom plate 12 and the bottom water injection tank 23 coincide, the bottom water permeable plate 24 is arranged at the window, one end of the water delivery pipe 26 is communicated with the bottom water injection tank 23, and the booster pump 25 is arranged on the water delivery pipe 26;
wherein, be close to baffle 14 of side porous disk 22 sets up a plurality of overflow ports 221 from top to bottom, and an overflow port 221 department sets up a cock body 222, be equipped with delivery port 121 on the bottom plate 12, a plurality of overflow ports 221 side porous disk 22 delivery port 121 all belongs to side water injection tank 21.
The transparent plate 13 is provided with a coordinate grid, so that data can be conveniently observed and recorded in the test process. The height of one baffle 14 is lower than that of the metal frame 11, so that the side slope can be conveniently filled by manual work from the right side in the test process. The inner wall of the side water injection tank 21 is provided with scale marks. The lateral permeable plate 22 and the bottom permeable plate 24 are composed of a support plate, a porous stainless steel plate and a permeable film, so that the permeable plates can have enough strength and have a filtering function of permeating water but not permeating soil. The side permeable plate 22 can realize that water flows into the main body of the side slope of the model box from the side water injection tank 21 to simulate the seepage of underground water. The water pipe 26 is provided with a booster pump 25, and the water pipe 26 is also provided with a pressure gauge 39 and a flowmeter 38 in practical application. Different pressure heads can be obtained by adjusting the booster pump 25 so as to simulate different types of groundwater seepage conditions. The baffle 14 that is close to side porous disk 22 sets up a plurality of overflow ports 221 from top to bottom for keep the waterhead in the water injection tank 21 of side invariable, the cock body 222 sets up to soft stopper, and cock body 222 and overflow port 221 department all handle with silica gel material, increase frictional force, difficult landing. The number 100 in fig. 1 represents a slope.
The invention provides a groundwater simulation system which can be combined with the existing rainfall mechanism and the like to realize multifunctional tests and obtain more comprehensive data.
In another technical solution, the method further comprises:
rainfall system, it includes rainfall apron 31, rainfall pipe 32, rainfall shower nozzle 33, rainfall apron 31 detachable sets up the top of mold box, set up bar hole 34 on the rainfall apron 31, rainfall pipe 32 lays on the rainfall apron 31, rainfall shower nozzle 33 interval sets up on the rainfall pipe 32, realized the simulation to the rainfall, to the influence of side slope when obtaining the rainfall.
In another technical solution, the method further comprises:
the loading system comprises a door type reaction frame 41, an oil cylinder 42, a connecting rod 43 and a loading plate 44, wherein the door type reaction frame 41 is used for the model box to pass through, the connecting rod 43 vertically penetrates through the strip-shaped hole 34, the oil cylinder 42 is connected with the upper end of the connecting rod 43, and the loading plate 44 is arranged at the lower end of the connecting rod 43. The mold box and the door type reaction frame 41 are designed into a whole, and can provide enough supporting force for the test loading process. The door reaction frame 41 is supported by a support base 45.
In another technical solution, the method further comprises:
and the sliding system comprises a sliding rail 51 and a pulley 52, the sliding rail 51 is arranged below the model box, and the pulley 52 is arranged at the bottom of the model box and is arranged in the sliding rail 51 in a sliding manner, so that the model box body can slide to load different positions of the slope.
In another technical solution, the method further comprises:
the drainage collection system comprises a drainage filter tank 61 and a water collecting tank 62, wherein the drainage filter tank 61 is arranged at the bottom of the model box and is opposite to the bottom water injection tank 23, the water collecting tank 62 is positioned under the drainage filter tank 61, and scales are arranged in the water collecting tank 62. The drainage filter tank 61 can separate the lost soil and water, and the drainage filter tank 61 can be taken out of the model tank independently, so that the filtered soil can be collected conveniently to measure the scouring amount of the side slope. The inboard scale that marks of header tank 62 is convenient to carry out statistics to the rainwater of collecting.
In another technical solution, the method further comprises:
the PIV data acquisition system comprises a high-speed camera 71 and a computer 72, wherein the high-speed camera 71 is arranged on a tripod 73 and is opposite to the transparent plate 13, and the high-speed camera 71 is connected with the computer 72 and can monitor the deformation condition of a slope in the test process in real time. The PIV is also called Particle Image Velocimetry, and the PIV analysis technology is a non-contact, instantaneous, dynamic and full-flow field velocity measurement technology. The images are collected through a high-speed camera, the gray level images before and after the deformation of the research area are divided into a plurality of uniform grids, and accordingly correlation operation can be carried out to obtain the displacement of the central point after the grid deformation.
In another technical scheme, the rainfall system still includes cistern 35, rainfall control platform 36, water pump 37, flowmeter 38, cistern 35 with rainfall control platform 36 all sets up the outside of mold box, water pump 37 sets up in the cistern 35 and with the rainfall pipe 32 intercommunication, flowmeter 38 sets up on the rainfall pipe 32, still be equipped with the valve on the rainfall pipe 32, rainfall apron 31 is including the first plate body and the second plate body that to closing the dismantlement setting, strip hole 34 stridees across the first plate body with the second plate body. A strip-shaped hole 34 is reserved in the rainfall cover plate 31, the strip-shaped hole 34 spanning the first plate body and the second plate body can be detached, and a connecting rod 43 of a loading system can penetrate through the strip-shaped hole 34 and move along the length direction of the strip-shaped hole 34 so as to load different positions of a slope.
In another technical solution, the groundwater simulation system further includes a water supply tank 27, the water supply tank 27 is disposed outside the model box, and the other end of the water pipe 26 is communicated with the water supply tank 27 to provide a water source for groundwater simulation.
In another technical scheme, the model box further comprises at least one support rod 8, the support rod 8 is arranged above one baffle plate 14, the height of the baffle plate 14 is lower than that of the metal frame 11, and two ends of the support rod 8 are connected with the model box through nuts. The supporting rod 8 can provide lateral supporting force for the whole model box in the loading test process, and the two ends of the supporting rod 8 are fastened by nuts and can be detached.
In another technical scheme, the transparent plate 13 is made of toughened glass, and is high in hardness and not prone to scratching.
The device of the invention can be used for realizing the test of various scenes, and the following examples are listed for explaining the detailed test method.
< example 1>
When a slope model test under the action of rainfall is carried out, the method comprises the following specific steps: 1) the supporting support rods are detached from the metal frame 11 of the model box, the prepared soil for the test is transported into the model box, the side slope model is filled by adopting a layered tamping filling method, and the support rods 8 are reloaded after filling; 2) a rain cover plate 31 is mounted to the top of the model box; 3) rainfall parameters such as rainfall intensity, rainfall duration and rainfall are adjusted through the rainfall console 36, then a valve is opened to start rainfall, and the water flow in the rainfall process can be accurately recorded through the flowmeter 38; 4) fixing and opening the high-speed camera 71 and the computer 72, and accurately recording the deformation condition of the side slope and the rainwater infiltration condition in the test process through the PIV data acquisition system; 5) separating mud from water by a drainage filter tank 61, and collecting the separated water by a water collecting tank 62 to obtain the side slope scouring amount and the rainwater infiltration amount in the test process; 6) and after the test is finished, the valve is closed, the model is kept stand for a period of time, the site is cleaned, and the obtained data can be used for analyzing and researching the influence of rainfall on the slope stability and the slope scouring.
< example 2>
When a slope model test under the combined action of rainfall and groundwater seepage is carried out, the method specifically comprises the following steps: 1) the supporting rod 8 is detached from the right side of the model box, the prepared soil for the test is transported into the model box, a side slope model is filled by adopting a layered tamping filling method, and the supporting rod 8 is reloaded after filling; 2) a rain cover plate 31 is mounted to the top of the model box; 3) blocking the water outlet 121, injecting water into the side water injection tank 21 to a corresponding height according to a designed constant water head height required by an experiment, pulling off the plug body 222 at the overflow port 221 of the height, connecting a water discharge pipe at the outer side to discharge water higher than the height through the overflow port 221, so as to maintain the constant water head, and at the moment, enabling the water to enter the side slope model through the side water permeable plate 22 to form side groundwater seepage; 4) injecting water into the water supply tank 27, adjusting the booster pump 25 to enable the water pressure to reach a test design value to form a confined water head at the bottom, and closing the booster pump 25 to form a constant water head if the confined water head is not needed; 5) rainfall parameters such as rainfall intensity, rainfall duration and rainfall are adjusted through the rainfall console 36, then a valve is opened to start rainfall, and the water flow in the rainfall process can be accurately recorded through the flowmeter 38; 6) fixing and opening the high-speed camera 71 and the computer 72, and accurately recording the deformation condition of the side slope, the infiltration of rainwater and the seepage condition of underground water in the slope body in the test process through the PIV data acquisition system; 7) separating mud from water by a drainage filter tank 61, and collecting the separated water by a water collecting tank 62 to obtain the side slope scouring amount and the rainwater infiltration amount in the test process; 8) after the test is finished, the valve is closed, the water outlet 121 is opened for water drainage, the model is kept stand for a period of time, the site is cleaned, and the obtained data can be used for analyzing and researching the influence of the combined action of rainfall and groundwater seepage on the slope stability and the slope scouring.
< example 3>
When a slope model test under the combined action of rainfall, groundwater seepage and loading is carried out, the method comprises the following specific steps: 1) the supporting rod 8 is detached from the side of the model box, the prepared soil for the test is transported into the model box, a side slope model is filled by adopting a layered tamping filling method, and the supporting rod 8 is reloaded after filling; 2) a rain cover plate 31 is mounted to the top of the model box; 3) blocking the water outlet 121, injecting water into the side water injection tank 21 to a corresponding height according to a designed constant water head height required by an experiment, pulling off the plug body 222 at the overflow port 221 at the height, connecting a water discharge pipe at the outer side to discharge the water higher than the height through the overflow port 221, so as to maintain the constant water head, and at the moment, the water starts to enter a side slope model through the side water permeable plate 22 to form left side groundwater seepage; 4) injecting water into the water supply tank 27, adjusting the booster pump 25 to enable the water pressure to reach a test design value to form a confined water head at the bottom, and closing the booster pump 25 to form a constant water head if the confined water head is not needed; 5) rainfall parameters such as rainfall intensity, rainfall duration and rainfall are adjusted through the rainfall console 36, then a valve is opened to start rainfall, and the water flow in the rainfall process can be accurately recorded through the flowmeter 38; 6) fixing and opening the high-speed camera 71 and the computer 72, and accurately recording the deformation condition of the side slope, the infiltration of rainwater and the seepage condition of underground water in the slope body in the test process through the PIV data acquisition system; 7) separating mud from water by a drainage filter tank 61, and collecting the separated water by a water collecting tank 62 to obtain the side slope scouring amount and the rainwater infiltration amount in the test process; 8) after the rainfall is finished, closing the valve, and standing the slope model for one day, wherein the seepage effect of underground water is still continued; 9) setting loading parameters required by the test, and carrying out slope loading; 10) and after the test is finished, stopping loading, opening the water outlet 121 for draining water, standing the model for a period of time, cleaning the site, and analyzing and researching the influence of the combined action of rainfall, groundwater seepage and loading on the slope stability and the slope scouring by the obtained data.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. Multi-functional side slope model test device, its characterized in that includes:
the model box comprises a metal frame, a bottom plate, a pair of transparent plates and a pair of baffles, wherein the bottom plate, the pair of transparent plates and the pair of baffles are arranged on the metal frame, the pair of transparent plates and the pair of baffles are arranged on the side face of the metal frame, the pair of transparent plates are oppositely arranged and are provided with coordinate grids, the pair of baffles are also oppositely arranged, and the height of one baffle is lower than that of the metal frame;
the underground water simulation system comprises a side water injection tank, a side water permeable plate, a bottom water injection tank, a bottom water permeable plate, a booster pump and a water delivery pipe, wherein the side water permeable plate is arranged in the model box close to the baffle plate and divides the model box into the side water injection tanks;
wherein, be close to the baffle of side porous disk sets up a plurality of overflow mouths from top to bottom, and an overflow mouth department sets up a cock body, be equipped with the delivery port on the bottom plate, a plurality of overflow mouths the side porous disk the delivery port all belongs to side water injection tank.
2. The multifunctional slope model testing device of claim 1, further comprising:
the rainfall system comprises a rainfall cover plate, rainfall pipes and rainfall spray heads, wherein the rainfall cover plate is detachably arranged at the top of the model box, strip-shaped holes are formed in the rainfall cover plate, the rainfall pipes are laid on the rainfall cover plate, and the rainfall spray heads are arranged on the rainfall pipes at intervals.
3. The multifunctional slope model testing device of claim 2, further comprising:
the loading system comprises a door type reaction frame, an oil cylinder, a connecting rod and a loading plate, wherein the door type reaction frame is used for the model box to pass through, the connecting rod vertically penetrates through the strip-shaped hole, the oil cylinder is connected with the upper end of the connecting rod, and the loading plate is arranged at the lower end of the connecting rod.
4. The multifunctional slope model testing device as claimed in any one of claims 1 to 3, further comprising:
and the sliding system comprises a sliding rail and a pulley, the sliding rail is arranged below the model box, and the pulley is arranged at the bottom of the model box and is arranged in the sliding rail in a sliding manner.
5. The multifunctional slope model testing device of claim 4, further comprising:
the drainage collection system comprises a drainage filter tank and a water collection tank, wherein the drainage filter tank is arranged at the bottom of the model box and is just opposite to the bottom water injection tank, the water collection tank is positioned under the drainage filter tank, and scales are arranged in the water collection tank.
6. The multifunctional slope model testing device of claim 5, further comprising:
the PIV data acquisition system comprises a high-speed camera and a computer, wherein the high-speed camera is arranged on a tripod and is opposite to the transparent plate, and the high-speed camera is connected with the computer.
7. The multifunctional side slope model test device according to claim 2, wherein the rainfall system further comprises a reservoir, a rainfall console, a water pump and a flowmeter, the reservoir and the rainfall console are both disposed outside the model box, the water pump is disposed in the reservoir and is communicated with the rainfall pipe, the flowmeter is disposed on the rainfall pipe, a valve is further disposed on the rainfall pipe, the rainfall cover plate comprises a first plate body and a second plate body which are detachably disposed in a closed manner, and the strip-shaped hole spans the first plate body and the second plate body.
8. The multifunctional slope model test device as claimed in claim 1, wherein the groundwater simulation system further comprises a water supply tank, the water supply tank is disposed outside the model box, and the other end of the water pipe is communicated with the water supply tank.
9. The multifunctional slope model testing device as claimed in claim 1, wherein the model box further comprises at least one support rod, the support rod is disposed above one of the baffles, the height of the baffle is lower than that of the metal frame, and both ends of the support rod are connected with the model box through nuts.
10. The multifunctional slope model testing device as claimed in claim 1, wherein the transparent plate is tempered glass.
Priority Applications (1)
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| CN112894836A (en) * | 2021-01-12 | 2021-06-04 | 广西大学 | Identification and control system of coiled pipeline robot |
| CN113109547A (en) * | 2021-04-25 | 2021-07-13 | 福建省地质工程勘察院 | Testing device and testing method for accelerating slope model saturation |
| CN113358531A (en) * | 2021-06-28 | 2021-09-07 | 重庆大学 | Transparent soil model test device for simulating influence of underground retaining wall structure on groundwater seepage and test method thereof |
| CN113447363A (en) * | 2021-06-18 | 2021-09-28 | 哈尔滨工业大学（深圳） | Rainfall type landslide model test device and method capable of achieving equivalent slope height |
| CN113640501A (en) * | 2021-10-13 | 2021-11-12 | 四川省公路规划勘察设计研究院有限公司 | Bedding rock slope simulation test device under coupling effect of rainfall and underground water |
| CN113899673A (en) * | 2021-09-29 | 2022-01-07 | 中国地质科学院地质力学研究所 | Experiment device for side slope model under top loading and rainfall infiltration coupling test |
| CN115932222A (en) * | 2023-03-14 | 2023-04-07 | 吉林建筑大学 | Bottom sliding surface penetration type landslide test device and test method thereof |
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| CN113109547A (en) * | 2021-04-25 | 2021-07-13 | 福建省地质工程勘察院 | Testing device and testing method for accelerating slope model saturation |
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