CN212321269U - Soil slope surface model scouring test device - Google Patents
Soil slope surface model scouring test device Download PDFInfo
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- CN212321269U CN212321269U CN202021290628.7U CN202021290628U CN212321269U CN 212321269 U CN212321269 U CN 212321269U CN 202021290628 U CN202021290628 U CN 202021290628U CN 212321269 U CN212321269 U CN 212321269U
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Abstract
The utility model provides a soil slope surface model making and scouring test device, which comprises a test box body, a model box and a loading device, wherein the model box and the loading device are arranged in the test box body; one side of the model box is hinged with the test box body, the other end of the model box, which is hinged with the test box body, is also provided with a reaction plate, and a model box angle changing device is also connected between the reaction plate and the test box body. The utility model can accurately ensure the compactness of the slope model by manufacturing the slope model through the pressure loading device and the model box, avoid the use of large earth volume, shorten the test period and save the test fund and manpower consumption; the inclination angle of the model box can be adjusted by the model box angle changing device, and the test requirements of different inclination angles and slopes can be met. The rainfall intensity, the rainfall duration and the rainfall type can be adjusted through the rainfall flow control device, and the slope rainfall scouring test with different rainfall parameters can be realized.
Description
Technical Field
The utility model belongs to the technical field of geotechnical model experiment, concretely relates to soil property slope surface model scouring test device.
Background
With the rapid development of economy and the vigorous promotion of infrastructure in China, a large number of soil slopes exist in the heavy engineering construction of highways and railways, ditch-controlled land reclamation, flat mountain city construction and the like. The bare slope surface is easy to generate slope soil instability under the interference of factors such as short-time strong rainfall, continuous rainfall and the like, and can generate shallow layer diseases such as erosion, stripping, gully and the like, and even further cause the integral instability of the slope.
A large number of scholars at home and abroad research the erosion damage characteristics of the slope surface of the side slope and successively develop and develop a plurality of slope surface protection materials with good erosion resistance. The most intuitive method for verifying the anti-scouring performance of the slope surface protective material and researching the scouring damage characteristics of the slope surface is to carry out a scouring test, wherein the scouring test can be divided into a field scouring test and an indoor rainfall scouring model test. The field test is large in scale, so that the test cost is high and the test period is long. And the model size of the indoor rainfall erosion model test is smaller, the test period is short, the cost is low, and the model is widely applied.
The slope rainfall erosion model test mainly comprises two steps: firstly, making a model; ② rain washing. The manufacture of a slope model is the basis for carrying out a rainfall erosion model test, and the current common slope model manufacturing method is to firstly tamp soil in layers and then manually cut the slope according to the slope required by the test, but the method has the following problems: (1) the soil body is difficult to reach the compactness required by the test in the layered tamping process, and if the size of the model is larger, the consistency of the compactness of each part of the model is difficult to guarantee. (2) The soil consumption is large when the model is manufactured, the manufacturing process is complicated, and the test period is long when a plurality of groups of side slope scouring tests with different slope rates, different slope protection materials and the like need to be carried out. During rainfall erosion, the rainfall intensity of the existing rainfall equipment is mostly a fixed value, and the function of regulating and controlling the rainfall intensity in real time is not realized.
Disclosure of Invention
To above-mentioned prior art not enough with the defect, the utility model aims to provide a soil property slope surface model washout test device, the longer technical problem of test period when solving the device soil layer compaction inhomogeneous among the prior art, side slope scouring test.
In order to achieve the purpose, the technical scheme is as follows: a soil slope model scouring test device comprises a test box body, a model box and a loading device, wherein the model box and the loading device are installed in the test box body;
one side of the model box is hinged with the test box body, the other end of the model box, which is hinged with the test box body, is also provided with a reaction plate, a model box angle changing device is connected between the reaction plate and the test box body, and the model box angle changing device is used for lifting one side of the model box, which is provided with the reaction plate.
The utility model discloses still have following technical characteristic:
the test box body comprises a bottom plate, a top plate and a support column supported between the bottom plate and the top plate;
one side of the model box is hinged with the bottom plate, the loading device is installed on the top plate, and the rainfall device is installed on the supporting column;
the model box is in a cuboid shape with an opening at the top and a closed bottom, a soil retaining plate clamping groove is formed in the side wall of the model box, and a soil retaining plate is arranged in the soil retaining plate clamping groove;
the model box angle changing device comprises a jacking oil cylinder and a jacking oil cylinder base arranged at the lower part of the jacking oil cylinder;
the top end of the jacking oil cylinder is hinged with a second hinge lug connected to the reaction plate through a second hinge pin;
a water flowing port is further formed in one side, hinged with the bottom plate, of the model box, the water flowing port is connected with a diversion trench, and the diversion trench is installed on the bottom plate;
and the inner side of one side of the model box provided with the water flowing port is also symmetrically provided with a guide plate.
The loading device comprises a guide rail device arranged below the top plate, and the guide rail device comprises a guide rail connected with the top plate and a pressure loading device connected with the guide rail;
one end of the guide rail extends out of the test box body, and one end extending out of the test box body is connected with a loading device driving device.
The pressure loading device comprises a pressing plate, a loading oil cylinder base and a fixed support which are connected in sequence, wherein the fixed support is connected with a guide rail;
the width of the pressure plate is the same as that of the model box.
The rainfall device comprises a rainfall device frame and a water spraying device arranged on the rainfall device frame;
the water spraying device comprises a main water guide pipe and an auxiliary water guide pipe communicated with the main water guide pipe, the auxiliary water guide pipe is communicated with an internal water guide pipe through a connecting pipe, the internal water guide pipe is in cross communication and is arranged in a crossed manner, and a plurality of rainfall sprayers are mounted on the internal water guide pipe;
the main water guide pipe is also connected with a flow control valve and a flow meter.
The supporting column is provided with a rainfall device bearing sheet, and the rainfall device is arranged on the rainfall device bearing sheet.
One side of the diversion trench connected with the water flowing port is made of flexible materials, and the other side of the diversion trench is made of rigid materials.
The bottom plate bottom of experimental box still be connected with a plurality of mobile device, the bottom of bottom plate seted up the universal wheel mounting groove, the mobile device including installing the universal wheel in the universal wheel mounting groove, the universal wheel pass through lifting screw and lift valve and be connected with the bottom plate.
A method for manufacturing a soil slope model is carried out by the device for manufacturing the soil slope model and carrying out a scouring test, and comprises the following steps:
the method comprises the following steps: calculating the soil consumption required for reaching the required compaction degree of the test;
firstly, obtaining the maximum dry density rho of a test soil body through an indoor compaction testmaxAccording to the compaction degree required by the test, calculating and manufacturing the test soil mass by combining the maximum dry density of the test soil mass, the bottom area S of the model box and the thickness h of the slope modelThe soil consumption of the slope model is required;
step two: filling and compacting successively;
the soil retaining plates are arranged in the soil retaining plate clamping grooves, and because the distances between the soil retaining plate clamping grooves are equal, soil weighed according to the soil consumption required by the test is uniformly distributed according to the bottom area of a container formed by splicing the soil retaining plates and the model box, the uniformly distributed soil is filled into the container formed by splicing the soil retaining plates and the model box, and the pressure loading device is controlled to compact the soil to the set slope model thickness; adjusting the position of the soil retaining plate in the model box, adjusting the position of the pressure loading device, and repeating the pressurizing process until the whole model box is filled with soil, wherein the soil at the position is compacted in a manually assisted hammering mode, and the pressure of a pressure plate is difficult to apply due to the fact that the bottom surface of a guide plate in the model box is not rectangular;
step three: adjusting the inclination angle of the model box;
and adjusting the inclination angle of the model box through the model box angle changing device to obtain slope models with different inclinations.
A soil slope surface model is manufactured by the method.
A soil slope surface model manufacturing and scouring test method is carried out by the soil slope surface model manufacturing and scouring test device, and comprises the following steps:
the method comprises the following steps: calculating the soil consumption required for reaching the required compaction degree of the test;
firstly, obtaining the maximum dry density rho of a test soil body through an indoor compaction testmaxCalculating the soil consumption required for manufacturing a slope model according to the test required compaction degree and by combining the maximum dry density of a test soil body, the bottom area S of the model box and the slope model thickness h;
step two: filling and compacting successively;
the soil retaining plates are arranged in the soil retaining plate clamping grooves, and because the distances between the soil retaining plate clamping grooves are equal, soil weighed according to the soil consumption required by the test is uniformly distributed according to the bottom area of a container formed by splicing the soil retaining plates and the model box, the uniformly distributed soil is filled into the container formed by splicing the soil retaining plates and the model box, and the pressure loading device is controlled to compact the soil to the set slope model thickness; adjusting the position of the soil retaining plate in the model box, adjusting the position of the pressure loading device, and repeating the pressurizing process until the whole model box is filled with soil, wherein the soil at the position is compacted in a manually assisted hammering mode, and the pressure of a pressure plate is difficult to apply due to the fact that the bottom surface of a guide plate in the model box is not rectangular;
step three: adjusting the inclination angle of the model box;
adjusting the inclination angle of the model box through a model box angle changing device to obtain slope models with different inclinations;
step four: setting rainfall parameters and carrying out rainfall scouring;
the rainfall device is installed on a rainfall device bearing sheet on the supporting column, water is introduced, rainfall required by the test is realized through the flow control valve and the flowmeter, and rainfall scouring is carried out.
Compared with the prior art, the utility model, profitable technological effect is:
the utility model (I) can accurately ensure the compactness of the slope model by manufacturing the slope model through the pressure loading device and the model box, thereby avoiding the use of large earth volume, shortening the test period and saving the test fund and labor consumption;
(II) the utility model discloses an inclination of the adjustable model case of model case angle changing device can satisfy the domatic experimental requirement in different inclination.
(III) the utility model discloses a rainfall intensity, rainfall duration and rainfall type can be adjusted to flow control valve and flowmeter, the side slope rainfall scouring test of different rainfall parameters can be realized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic structural view of a model box angle changing device of the present invention;
FIG. 4 is a schematic view of the structure of the model box of the present invention;
fig. 5 is a schematic structural view of the rainfall mechanism of the present invention;
FIG. 6 is a schematic view of the compaction operating state of the present invention;
FIG. 7 is a schematic view of the flushing operation state of the present invention;
fig. 8 is a schematic view of the mobile device according to the present invention in an extended state;
the meaning of the individual reference symbols in the figures is: 1-test box body, 2-model box, 3-loading device, 4-rainfall device, 5-reaction plate, 6-model box angle changing device, 7-bottom plate, 8-top plate, 9-support column, 10-retaining plate clamping groove, 11-retaining plate, 12-jacking oil cylinder, 13-jacking oil cylinder base, 14-first hinge lug, 15-first hinge pin, 16-second hinge lug, 17-second hinge pin, 18-water gap, 19-diversion groove, 20-diversion plate, 21-guide rail device, 22-guide rail, 23-pressure loading device, 24-loading device driving device, 25-pressing plate, 26-loading oil cylinder, 27-loading oil cylinder base, 28-fixed support, 29-rainfall device frame, 30-a water spraying device, 31-a main water guide pipe, 32-an auxiliary water guide pipe, 33-an internal water guide pipe, 34-a connecting pipe, 35-a rainfall spray head, 36-a flow control valve, 37-a flowmeter, 38-a rainfall device bearing sheet, 39-a moving device, 40-a universal wheel mounting groove, 41-a universal wheel, 42-a lifting screw rod, 43-a lifting valve and 44-scales.
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
The device for manufacturing the soil slope model and the rainfall erosion model test is integrated with the manufacturing of the slope model and the rainfall erosion test, and can accurately and conveniently control the compaction degree of the slope model, the slope rate of the slope model, different rainfall intensities, different rainfall types, different rainfall durations and other test parameters.
The utility model provides a collect domatic model preparation and rainfall erosion test as an organic whole, can control domatic model's compactness, domatic model's slope rate, different rainfall intensity, the rainfall type of difference, the domatic model preparation of the soil slope of test parameters such as different rainfall duration and rainfall erosion model test's device accurately conveniently.
Slope models with different compactnesses and thicknesses can be manufactured by adjusting the loading pressure of the pressure loading device;
by utilizing the model box angle changing device and the rainfall device, the precise adjustment of the inclination angle of the model box, the rainfall intensity, the rainfall duration and the rainfall type can be realized, and the multivariable rainfall erosion model test under the conditions of different slope rates and different rainfall parameters is realized;
through screw rod lift universal wheel device, can realize the convenient removal of equipment.
The device can accurately ensure the compactness of the model soil body, shorten the model making time, reduce the test soil consumption and realize the rainfall erosion model test of the soil slope surface under the conditions of different slope rates and rainfall parameters.
Example 1:
according to the technical scheme, as shown in fig. 1 to 8, the soil slope model erosion test device provided in the embodiment comprises a test box body 1, a model box 2 and a loading device 3, wherein the model box 2 and the loading device 3 are installed in the test box body 1, and a rainfall device 4 is also installed in the test box body 1;
one side of the model box 2 is hinged with the test box body 1. The other end of the model box 2 hinged to the test box body 1 is further provided with a reaction plate 5, a model box angle changing device 6 is further connected between the reaction plate 5 and the test box body 1, and the model box angle changing device 6 is used for lifting one side of the model box 2 provided with the reaction plate 5. The rainfall device 4 is used for scouring the model soil in the model box 2, the loading device 3 is used for compacting the model soil in the model box 2, one side of the model box 2 is hinged with the test box body 1, and the model box angle changing device 6 enables the angle of the model box 2 to be adjustable, so that the condition that side slopes under different slopes are scoured can be simulated.
As a preference of this embodiment, the test box 1 includes a bottom plate 7, a top plate 8 and a support column 9 supported between the bottom plate 7 and the top plate 8; this structure of the test chamber 1 makes it possible to easily observe the test conditions in the test chamber 1.
One side of the model box 2 is hinged with a bottom plate 7, the loading device 3 is arranged on a top plate 8, and the rainfall device 4 is arranged on a support column 9;
the model box 2 is in a cuboid shape with an open top and a closed bottom, a retaining plate clamping groove 10 is formed in the side wall of the model box 2, and a retaining plate 11 is installed in the retaining plate clamping groove 10. When the mold box 2 is longer, the soil in the mold box 2 is compacted by the matching of the retaining plate 11 and the retaining plate clamping groove 10.
The model box angle changing device 6 comprises a jacking oil cylinder 12 and a jacking oil cylinder base 13 arranged at the lower part of the jacking oil cylinder 12;
the jacking oil cylinder base 13 is hinged with a first hinge lug 14 connected to the bottom plate 7 through a first pin shaft 15, and the top end of the jacking oil cylinder 12 is hinged with a second pin shaft 17 connected to the reaction plate 5.
The model box angle changing device 6 is formed by sequentially connecting a second hinge lug 16, a jacking oil cylinder 12, a jacking oil cylinder base 13 and a first hinge lug 14, wherein the second hinge lug 16 is connected with the reaction plate 5, and the first hinge lug 14 is connected with the bottom plate 7.
The model box angle changing device 6 is used for lifting one side of the model box 2, so that different slopes can be simulated conveniently. When the mold box is lifted, the jacking oil cylinder 12 on the oil cylinder base 13 extends, the reaction plate 5 is jacked through the second hinge lug 16, the reaction plate 5 drives one side of the mold box 2 to lift, the jacking oil cylinder base 13 is hinged with the bottom plate 7 due to the fact that the angles of the oil cylinder base 13 and the bottom plate 7, the jacking oil cylinder 12 and the reaction plate 5 are changed after the mold box is lifted, and the top end of the jacking oil cylinder 12 is hinged with the reaction plate 5.
As a preferred embodiment of the present invention, a drain port 18 is further formed at one side of the mold box 2 hinged to the bottom plate 7, the drain port 18 is connected to a diversion trench 19, and the diversion trench 19 is installed on the bottom plate 7;
and the inner side of one side of the model box 2 provided with the water flowing port 18 is also symmetrically provided with a guide plate 20. The water flow opening 18, the diversion trench 19 and the diversion plate 20 are designed to better drain the water drained from the rainfall apparatus 4.
As a preference of this embodiment, the loading device 3 includes a rail device 21 installed below the top plate 8, and the rail device 21 includes a rail 22 connected to the top plate 8 and a pressure loading device 23 connected to the rail 22;
one end of the guide rail 22 extends out of the test box body 1, and one end extending out of the test box body 1 is connected with a loading device driving device 24. The pressure application device 23 is connected to the guide rail 22, so that the pressure application device 23 can respectively compact the soil mass in the mold box 2. One end of the guide rail 22 extends out of the test box body 1, so that the loading device driving device 24 is convenient to install on one hand, and on the other hand, when the rainfall device 4 is used for carrying out the scouring test, the pressure loading device 23 can be moved out of the test box body 1, and the scouring test is not influenced.
As a preferred embodiment of the present invention, the pressure loading device 23 includes a pressing plate 25, a loading cylinder 26, a loading cylinder base 27 and a fixed support 28, which are connected in sequence, and the fixed support 28 is connected with the guide rail 22;
the width of the pressing plate 25 is the same as that of the mold box 2.
As a preference of this embodiment, the rainfall device 4 includes a rainfall device frame 29 and a water spraying device 30 disposed on the rainfall device frame 29;
the water spraying device 30 comprises a main water guide pipe 31 and a secondary water guide pipe 32 communicated with the main water guide pipe 31, the secondary water guide pipe 32 is communicated with an internal water guide pipe 33 through a connecting pipe 34, the internal water guide pipe 33 is in cross communication and cross arrangement, and a plurality of rainfall spray heads 35 are installed on the internal water guide pipe 33; to meet the flow requirement, the diameter of the main water guiding pipe 31 should be larger than that of the secondary water guiding pipe 32, the diameter of the secondary water guiding pipe 32 should be larger than that of the inner water guiding pipe 33, and the diameters of the main water guiding pipe 31, the secondary water guiding pipe 32 and the inner water guiding pipe 22 should be matched.
In actual use, in order to enable the rainfall device 4 to be arranged on the rainfall device carrying sheet 38, the length and width of the rainfall device frame 29 should be slightly smaller than the size of the top plate 8, meanwhile, the coverage area of the rainfall grid formed by the crossed inner water conduits 33 should be larger than the bottom area of the model box 2, and the simulated rainfall should not cover the diversion trench 19.
The main water pipe 32 is also connected with a flow control valve 35 and a flow meter 36. The flow control valve 36 and flow meter 37 are used to control the output of the rainfall apparatus 4 to simulate the effect of different rainfall on the slope.
As a preferred embodiment, the supporting column 9 is provided with a rainfall device carrying sheet 37, and the rainfall device 4 is provided on a rainfall device carrying sheet 38.
Preferably, one side of the diversion trench 19 connected to the water flowing port 18 is made of a flexible material, and the other side is made of a rigid material.
Preferably, in this embodiment, the bottom of the bottom plate 7 of the test box 1 is further connected with a plurality of moving devices 39, the bottom of the bottom plate 7 is provided with a universal wheel mounting groove 40, each moving device 39 comprises a universal wheel 41 mounted in the universal wheel mounting groove 40, and the universal wheel 41 is connected with the bottom plate 7 through a lifting screw 42 and a lifting valve 43. There are four mobile device 39 in this embodiment, when this embodiment uses, rotate lift valve 43 for universal wheel 41 withdraws in the universal wheel mounting groove 40, makes this device stability when experimental, when this device is removed to needs, rotates lift valve 43, makes universal wheel 41 stretch out from universal wheel mounting groove 40, conveniently removes this device.
Example 2:
a method for manufacturing a soil slope model is carried out by the device for manufacturing the soil slope model and carrying out a scouring test, and comprises the following steps:
the method comprises the following steps: calculating the soil consumption required for reaching the required compaction degree of the test;
firstly, the maximum dry density of a test soil body is obtained through an indoor compaction testDegree rhomaxCalculating the soil consumption required for manufacturing a slope model according to the test required compaction degree and by combining the maximum dry density of the test soil body, the bottom area S of the model box 2 and the slope model thickness h;
step two: filling and compacting successively;
the soil retaining plates 11 are arranged in the soil retaining plate clamping grooves 10, and because the distances between the soil retaining plate clamping grooves 10 are equal, soil weighed according to the soil consumption required by the test is equally divided according to the bottom area of a container spliced by the soil retaining plates 11 and the model box 2, the evenly divided soil is filled into the model box 2, and the pressure loading device 23 is controlled to compact the soil to the set slope model thickness; adjusting the position of the soil retaining plate 11 in the model box 2, adjusting the position of the pressure loading device 23, and repeating the pressurizing process until the whole model box 2 is filled with soil, wherein the bottom surface of the guide plate 20 in the model box 2 is not rectangular, so that the pressure plate 25 is difficult to apply pressure, and the soil at the position is compacted in a manually assisted hammering manner;
step three: adjusting the inclination angle of the model box;
the inclination angle of the model box 2 is adjusted through the model box angle changing device 6, and slope models with different inclinations are obtained.
Example 3:
a soil slope model is manufactured by the method in embodiment 2. The slope model is manufactured through the pressure loading device and the model box, so that the compactness of the slope model can be accurately guaranteed, the use of large earth volume is avoided, the test period is shortened, and the test fund and the labor consumption are saved;
example 4:
a soil slope surface model manufacturing and scouring test method is carried out by the soil slope surface model manufacturing and scouring test device, and comprises the following steps:
the method comprises the following steps: calculating the soil consumption required for reaching the required compaction degree of the test;
first pass the indoor compaction testObtaining the maximum dry density rho of the test soil bodymaxCalculating the soil consumption required for manufacturing a slope model according to the test required compaction degree and by combining the maximum dry density of the test soil body, the bottom area S of the model box 2 and the slope model thickness h;
step two: filling and compacting successively;
the soil retaining plates 11 are arranged in the soil retaining plate clamping grooves 10, and because the distances between the soil retaining plate clamping grooves 10 are equal, soil weighed according to the soil consumption required by the test is equally divided according to the bottom area of a container formed by splicing the soil retaining plates 11 and the model box 2, the equally divided soil is filled into a container 23 formed by splicing the soil retaining plates 11 and the model box 2, and the pressure loading device 23 is controlled to compact the soil to the set slope model thickness; adjusting the position of the soil retaining plate 11 in the model box 2, adjusting the position of the pressure loading device 23, and repeating the pressurizing process until the whole model box 2 is filled with soil, wherein the bottom surface of the guide plate 20 in the model box 2 is not rectangular, so that the pressure plate 25 is difficult to apply pressure, and the soil at the position is compacted in a manually assisted hammering manner;
step three: adjusting the inclination angle of the model box;
adjusting the inclination angle of the model box 2 through a model box angle changing device 6 to obtain slope models with different inclinations;
step four: setting rainfall parameters and carrying out rainfall scouring;
the rainfall device 4 is arranged on a rainfall device bearing sheet 38 on the support column 9, water is introduced, rainfall required by the test is realized through the flow control valve 36 and the flowmeter 37, and rainfall scouring is carried out.
Claims (7)
1. The soil slope model scouring test device comprises a test box body (1), and is characterized by further comprising a model box (2) and a loading device (3) which are arranged in the test box body (1), wherein a rainfall device (4) is further arranged in the test box body (1);
one side of model box (2) articulated with experimental box (1), model box (2) still install reaction plate (5) with experimental box (1) articulated other end, reaction plate (5) still be connected with model box angle changing device (6) with experimental box (1) between, model box angle changing device (6) be used for lifting model box (2) and install one side of reaction plate (5).
2. The erosion test device for the soil slope model according to claim 1, wherein the test box body (1) comprises a bottom plate (7), a top plate (8) and a support column (9) supported between the bottom plate (7) and the top plate (8);
one side of the model box (2) is hinged with a bottom plate (7), the loading device (3) is installed on a top plate (8), and the rainfall device (4) is installed on a supporting column (9);
the model box (2) is in a cuboid shape with an open top and a closed bottom, a retaining plate clamping groove (10) is formed in the side wall of the model box (2), and a retaining plate (11) is installed in the retaining plate clamping groove (10);
the model box angle changing device (6) comprises a jacking oil cylinder (12) and a jacking oil cylinder base (13) arranged at the bottom end of the jacking oil cylinder (12), the jacking oil cylinder base (13) is hinged with a first hinge lug (14) connected to the bottom plate (7) through a first pin shaft (15), and the top end of the jacking oil cylinder (12) is hinged with a second hinge lug (16) connected to the reaction plate (5) through a second pin shaft (17);
a water flowing port (18) is further formed in one side, hinged with the bottom plate (7), of the model box (2), the water flowing port (18) is connected with a diversion trench (19), and the diversion trench (19) is installed on the bottom plate (7);
and the inner side of one side of the model box (2) provided with the water flowing port (18) is also symmetrically provided with a guide plate (20).
3. The erosion test device for the soil slope model according to claim 1, wherein the loading device (3) comprises a guide rail device (21) installed below the top plate (8), and the guide rail device (21) comprises a guide rail (22) connected with the top plate (8) and a pressure loading device (23) connected with the guide rail (22);
one end of the guide rail (22) extends out of the test box body (1), and one end extending out of the test box body (1) is connected with a loading device driving device (24);
the pressure loading device (23) comprises a pressure plate (25), a loading oil cylinder (26), a loading oil cylinder base (27) and a fixed support (28) which are connected in sequence, and the fixed support (28) is connected with the guide rail (22);
the width of the pressure plate (25) is the same as that of the model box (2).
4. The erosion test device for soil slope models according to claim 1, characterized in that the rainfall device (4) comprises a rainfall device frame (29) and a water spraying device (30) arranged on the rainfall device frame (29);
the water spraying device (30) comprises a main water guide pipe (31) and a secondary water guide pipe (32) communicated with the main water guide pipe (31), the secondary water guide pipe (32) is communicated with an internal water guide pipe (33) through a connecting pipe (34), the internal water guide pipe (33) is in cross communication and cross arrangement, and a plurality of rainfall sprayers (35) are installed on the internal water guide pipe (33);
the main water pipe (31) is also connected with a flow control valve (36) and a flow meter (37).
5. The erosion test device for soil slope model according to claim 2, wherein a rainfall device carrying sheet (38) is installed on the supporting column (9), and the rainfall device (4) is installed on the rainfall device carrying sheet (38).
6. The erosion test device for soil slope models according to claim 2, wherein one side of the diversion trench (19) connected with the water flowing port (18) is made of flexible material, and the other side is made of rigid material.
7. The soil slope model erosion test device according to claim 2, wherein the bottom of the bottom plate (7) of the test box body (1) is further connected with a plurality of moving devices (39), the bottom of the bottom plate (7) is provided with a universal wheel mounting groove (40), the moving devices (39) comprise universal wheels (41) mounted in the universal wheel mounting groove (40), and the universal wheels (41) are connected with the bottom plate (7) through lifting screws (42) and lifting valves (43).
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| CN202021290628.7U CN212321269U (en) | 2020-07-02 | 2020-07-02 | Soil slope surface model scouring test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049428A (en) * | 2021-03-09 | 2021-06-29 | 山东大学 | Vegetation side slope antiscour test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049428A (en) * | 2021-03-09 | 2021-06-29 | 山东大学 | Vegetation side slope antiscour test device |
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