A multi-angle adjustable pavement scale experiment system and method

Abstract

The application discloses a kind of multi-angle adjustable pavement scale experiment system, including experimental platform, the bottom of experimental platform is provided with I-beam framework, further including the hydraulic control system for the multi-angle adjustment of experimental platform, hydraulic control system includes control panel, oil tank, oil pipe and multiple sets of hydraulic subsystem, the oil outlet of oil tank is communicated with the oil inlet of each hydraulic subsystem by oil pipe respectively, the oil outlet of each hydraulic subsystem is communicated with the oil inlet of oil tank by oil pipe respectively, control panel is connected with each set of hydraulic subsystem signal respectively, and hydraulic subsystem includes hydraulic cylinder, the top of hydraulic cylinder is provided with supporting seat, and supporting seat and I-beam framework form separable limit cooperation.The application further discloses a kind of multi-angle adjustable pavement scale experiment method, and the multi-angle adjustment of experimental platform can be realized by the cooperation of each hydraulic subsystem.

Description

Technical Field

[0001] This invention belongs to the field of experimental equipment for highway engineering and airport engineering, specifically relating to a multi-angle adjustable pavement scale test system and a multi-angle adjustable pavement scale test method. Background Technology

[0002] The study of road drainage characteristics under rainfall conditions is an important topic in the field of road engineering. Scaled-down model experiments, as an effective research method, play a crucial role in road drainage characteristics, slope design optimization, and performance evaluation. However, existing pavement scaled-down model experimental platforms generally suffer from problems such as small simulated road dimensions, limited adjustment angles, and poor structural stability, making it difficult to simulate the actual runoff paths and drainage lengths of real pavements under complex working conditions. Furthermore, the traditional experimental platforms suffer from low integration of hydraulic control systems, cumbersome operation, and difficulties in experimental data acquisition and analysis, leading to significant deviations between experimental results and actual engineering practices. In addition, the unreasonable design of the connection methods for various components of the experimental platform makes disassembly and assembly inconvenient, maintenance costs high, and unable to meet diverse experimental needs. Therefore, developing a pavement scaled-down model experimental platform system that is multi-angle adjustable, structurally stable, and easy to operate is of great significance for improving the accuracy and efficiency of indoor simulated rainfall experiments on roads and promoting technological progress in the field of road engineering. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a multi-angle adjustable pavement scaling test system and a multi-angle adjustable pavement scaling test method.

[0004] To achieve the above objectives, the present invention employs the following technical means: A multi-angle adjustable pavement scaling test system includes an experimental platform with an I-beam frame at the bottom. It also includes a hydraulic control system for multi-angle adjustment of the experimental platform. The hydraulic control system includes a control panel, an oil tank, oil supply pipes, and multiple hydraulic subsystems. The oil outlet of the oil tank is connected to the oil inlet of each hydraulic subsystem via oil supply pipes, and the oil outlet of each hydraulic subsystem is connected to the oil inlet of the oil tank via oil supply pipes. The control panel is connected to each hydraulic subsystem via signal connections. Each hydraulic subsystem includes a hydraulic cylinder with a support at its top. The support and the I-beam frame form a separable limiting fit.

[0005] The hydraulic subsystem includes a hydraulic pump, a relief valve, a three-position four-way directional valve, and a hydraulic cylinder. The oil outlet of the oil tank is connected to the oil inlet of the hydraulic pump via an oil supply pipe. The oil outlet of the hydraulic pump is connected to the P port of the corresponding three-position four-way directional valve via an oil supply pipe. A relief valve is installed on the oil supply pipe connecting the oil outlet of the hydraulic pump and the P port of the three-position four-way directional valve. The A port of the three-position four-way directional valve is connected to the rodless chamber port of the corresponding hydraulic cylinder via an oil supply pipe. The B port of the three-position four-way directional valve is connected to the rod chamber port of the corresponding hydraulic cylinder via an oil supply pipe. The T port of the three-position four-way directional valve is connected to the oil inlet of the oil tank via an oil supply pipe. A support is provided at the top of the hydraulic rod of the hydraulic cylinder. A support groove is provided at the top of the support. The shape of the support groove matches the bottom flange of the I-beam frame. A level sensor is installed in the oil tank. The level sensor, the hydraulic pump, and the three-position four-way directional valve are respectively connected to the control panel for signal transmission.

[0006] The hydraulic cylinder's hydraulic rod is connected to the support bracket via a universal joint.

[0007] A rubber pad is provided inside the support groove.

[0008] The experimental platform includes a flat steel template and a fence. The fence is fixedly installed on the upper surface of the flat steel template. Multiple limiting sleeves are fixedly installed at the bottom of the I-beam frame, and the limiting sleeves are fitted onto the corresponding support devices.

[0009] The support device includes a support column, multiple column base stiffening ribs and a base plate. Each column base stiffening rib is fixedly connected to the support column and the base plate respectively. A limiting sleeve is fitted on the top of the support column, and the base plate is fixed to the ground foundation by anchor bolts.

[0010] The surfaces of the supporting columns, column base stiffening ribs, and base plate are all provided with anti-corrosion plating or anti-corrosion coating.

[0011] It also includes a slope detector, which is fixedly installed on the lower surface of the flat steel template and is connected to the control panel via signal.

[0012] The control panel is equipped with operation buttons and a display screen, and integrates a controller.

[0013] A multi-angle adjustable pavement scale test method utilizing the aforementioned multi-angle adjustable pavement scale test system includes the following steps: Step 1: According to the experimental design requirements, mix asphalt and aggregates according to the predetermined mix ratio to prepare pavement material; Step 2: Lay the pavement material in the enclosure, use tools to initially level the pavement material, and compact the initially leveled pavement material to obtain a pavement scale model. Step 3: Connect the power supply and initialize the system. After initialization, control all hydraulic subsystems to raise the experimental platform to the set height, thereby disengaging the limit sleeve from the support device. Step 4: Control the corresponding hydraulic subsystem to adjust and lock the experimental platform at the preset slope; Step 5: After the slope of the experimental platform is adjusted, set up the measuring device on the scale model of the pavement and connect the measuring device to the control panel signal. Step 6: Set the preset test parameters, conduct multiple parallel simulated rainfalls on the pavement scale model using a rainfall device, and collect and record the required test parameters in real time using a measuring device. Step 7: After multiple parallel test experiments are completed, control the corresponding hydraulic subsystems to restore the experimental platform to a horizontal position, and then control all hydraulic subsystems to lower the experimental platform as a whole until the limit sleeve is fitted onto the support device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention achieves multi-angle adjustment of the experimental platform through the cooperation of multiple sub-hydraulic systems; 2. An I-beam frame is installed at the bottom of the experimental platform. Multiple limiting sleeves are fixedly installed at the bottom of the I-beam frame. The limiting sleeves are fitted onto the corresponding support devices. In non-experimental state, the supporting devices provide stable support for the experimental platform through the I-beam frame and the limiting sleeves. 3. When conducting pavement scale tests, adjusting the slope of the experimental platform before setting up the measuring device can avoid risks such as vibration and collision of the measuring instruments during the dynamic adjustment of the experimental platform. This ensures that the measurement reference plane is consistent with the slope of the pavement scale model and has better measurement accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the experimental device structure of the present invention; Figure 2 This is a schematic diagram of the experimental platform device structure; Figure 3 This is a schematic diagram of the supporting column structure; Figure 4 This is a schematic diagram of the hydraulic control system structure; The components are as follows: 1-Experimental platform; 2-Hydraulic control system; 3-Planar steel formwork; 4-Enclosure; 5-High-strength bolts; 6-I-beam frame; 7-Support device; 8-Limit sleeve; 9-Support column (seamless steel pipe); 10-Column base stiffening rib (triangular steel plate); 11-Base plate; 12-Control panel; 13-Signal line; 14-Oil tank; 15-Oil pipeline; 16-Hydraulic pump; 17-Relief valve; 18-Filter; 19-Hydraulic cylinder; 20-Support bracket. Detailed Implementation

[0016] To facilitate understanding and implementation of the present invention by those skilled in the art, the present invention will be further described in detail below with reference to embodiments. The embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example 1: like Figure 1 and Figure 2 As shown, a multi-angle adjustable pavement scaling experimental system includes an experimental platform 1 for simulating a road and a hydraulic control system 2 for multi-angle adjustment of the experimental platform 1.

[0018] The experimental platform 1 includes a planar steel template 3 and a retaining wall 4. The planar steel template 3 serves as the casting base for the pavement scale model, and the retaining wall 4 is fixedly installed on its upper surface. The retaining wall 4 is used to fill the pavement material when making the pavement scale model. When the experimental platform 1 is tilted, the pavement material will not slide laterally due to the obstruction of the retaining wall, ensuring the smooth progress of the experiment. An I-beam frame 6 is fixedly installed on the bottom surface of the planar steel template 3 to enhance the overall rigidity of the experimental platform 1. Multiple limiting sleeves 8 are fixedly installed (welded) at the bottom of the I-beam frame 6. The limiting sleeves 8 are fitted onto the corresponding support devices 7 (non-rigid connection). In the non-experimental state, the supporting device 7 provides stable support for the experimental platform 1 through the I-beam frame 6 and the limiting sleeves 8. During the experiment, the experimental platform 1 can be lifted off the supporting device 7 as a whole.

[0019] like Figure 3 As shown, the support device 7 includes a support column 9, multiple column foot stiffening ribs 10 and a base plate 11. Each column foot stiffening rib 10 is fixedly connected to the support column 9 and the base plate 11 respectively. The limiting sleeve 8 is fitted on the top of the support column 9. The base plate 11 is fixed to the ground foundation by anchor bolts.

[0020] In some embodiments, the support column 9 is a seamless steel pipe, and the column base stiffening rib 10 is a triangular steel plate.

[0021] like Figure 4As shown, the hydraulic control system 2 includes a control panel 12, an oil tank 14, an oil supply pipe 15, and multiple hydraulic subsystems. Each hydraulic subsystem includes a hydraulic pump 16, a relief valve 17, a three-position four-way directional valve, and a hydraulic cylinder 19. The oil outlet of the oil tank 14 is connected to the oil inlet of the hydraulic pump 16 via the oil supply pipe 15. The oil outlet of the hydraulic pump 16 is connected to the P port of the corresponding three-position four-way directional valve via the oil supply pipe 15. A relief valve 17 is installed on the oil supply pipe 15 connecting the oil outlet of the hydraulic pump 16 and the P port of the three-position four-way directional valve. The A port of the three-position four-way directional valve is connected to the rodless chamber port of the corresponding hydraulic cylinder 19 via the oil supply pipe 15. The B port of the three-position four-way directional valve is connected to the rod chamber port of the corresponding hydraulic cylinder 19 via the oil supply pipe 15. The T port of the three-position four-way directional valve is connected to the oil tank 14 via the oil supply pipe 15. The oil inlet of 4 is connected. The top of the hydraulic rod of the hydraulic cylinder 19 is provided with a support 20. The support 20 forms a separable limiting fit with the bottom of the I-beam frame 6 through the support groove provided on its top. Specifically, the support 20 is provided with a support groove on its top. The shape of the support groove matches the bottom flange of the I-beam frame 6. During the experimental preparation stage, the support 20 is raised by hydraulic drive. The support groove is inserted into the bottom of the I-beam frame 6 from bottom to top, thereby realizing non-rigid and separable locking and limiting and support. After the experiment, the hydraulic rod of the hydraulic cylinder 19 retracts to separate the support 20 from the I-beam frame 6. A liquid level sensor is provided in the oil tank 14. The liquid level sensor, the hydraulic pump 16 and the three-position four-way reversing valve are respectively connected to the control panel 12 through the signal line 13.

[0022] For each hydraulic subsystem, the hydraulic oil in the tank 14 is pumped into the P port of the three-position four-way directional valve via the hydraulic pump 16. When the hydraulic rod of the hydraulic cylinder 19 needs to rise, the three-position four-way directional valve is controlled by the control panel 12, so that the P port of the three-position four-way directional valve is connected to the A port and the B port is connected to the T port. The hydraulic oil flows into the rodless chamber of the hydraulic cylinder 19, and the amount of hydraulic oil in the rodless chamber of the hydraulic cylinder 19 increases. This causes the hydraulic oil in the rod chamber of the hydraulic cylinder 19 to flow through the B port of the three-position four-way directional valve, the T port of the three-position four-way directional valve, and the oil inlet of the tank 14 before returning to the tank 14. When the hydraulic rod of hydraulic cylinder 19 needs to be locked, the three-position four-way directional valve is controlled by the control panel 12, so that the P port, A port, B port and T port of the three-position four-way directional valve are all closed. Since the P port of the three-position four-way directional valve is closed, the hydraulic oil pumped by hydraulic pump 16 cannot enter the three-position four-way directional valve. When the oil pressure of the oil supply pipe 15 connecting hydraulic pump 16 and three-position four-way directional valve reaches the set threshold of relief valve 17, relief valve 17 opens to release pressure on the oil supply pipe 15 connecting hydraulic pump 16 and three-position four-way directional valve, ensuring the safety and stability of the oil circuit. When the hydraulic rod of hydraulic cylinder 19 needs to descend, the three-position four-way directional valve is controlled via control panel 12, making the P port and B port of the three-position four-way directional valve open, and the A port and T port open. Hydraulic oil flows into the rod chamber of hydraulic cylinder 19, increasing the amount of hydraulic oil in the rod chamber. This causes the hydraulic oil in the rodless chamber of hydraulic cylinder 19 to flow through the A port and T port of the three-position four-way directional valve, and the oil inlet of oil tank 14, before returning to oil tank 14. Since each hydraulic cylinder 19 in each hydraulic subsystem is equipped with a support 20, and the support 20 forms a detachable limiting fit with the I-beam frame 6 through the support groove on its top, the three-position four-way directional valve in each hydraulic subsystem can be controlled via control panel 12 to raise and lower the hydraulic rod of hydraulic cylinder 19 in each hydraulic subsystem. This allows for multi-angle adjustment of experimental platform 1 to simulate the changes in cross slope and longitudinal slope of the pavement under different working conditions.

[0023] In this embodiment, the number of hydraulic subsystems is 4.

[0024] In some embodiments, the hydraulic rod of the hydraulic cylinder 19 is connected to the support 20 via a universal joint, making the experimental platform 1 more flexible and smooth when adjusting at multiple angles.

[0025] Furthermore, a rubber pad is installed in the support groove. The rubber pad is 10-15mm thick and has moderate hardness, which can effectively absorb the vibration generated during the operation of the experimental platform and ensure the stability of the device.

[0026] Furthermore, the control panel 12 is equipped with operation buttons and a display screen, and integrates a controller.

[0027] In some embodiments, a filter 18 (not shown in the figure) is provided on the oil supply pipe 15 connecting the oil outlet of the oil tank 14 and the oil inlet of the hydraulic pump 16. A filter 18 is also provided on the oil supply pipe 15 connecting the oil inlet and the T-port of the three-position four-way directional valve. Each filter 18 is connected to the control panel 12 via a signal line 13. The control panel 12 monitors whether the filter 18 is working properly.

[0028] In some embodiments, the planar steel formwork 3 and the I-beam frame 6 are bolted together by high-strength bolts 5, which facilitates the installation and disassembly of the planar steel formwork 3 and the I-beam frame 6, and at the same time gives the planar steel formwork 3 and the I-beam frame 6 excellent anti-slip and anti-shear performance.

[0029] Preferably, the surfaces of the support column 9, the column base stiffening ribs 10, and the base plate 11 are all provided with an anti-corrosion coating or anti-corrosion plating. This coating or plating has excellent corrosion resistance, effectively preventing rainwater contact during rainfall and thus preventing rust, extending the lifespan of the experimental platform and the adjustment system. In this embodiment, the surfaces of the support column 9, the column base stiffening ribs 10, and the base plate 11 are all provided with a galvanized layer.

[0030] Preferably, the filter 18 uses a high-precision filter element, which can effectively filter impurities in the hydraulic oil, prevent wear of hydraulic system components, and improve system reliability.

[0031] Preferably, the size and height of the enclosure 4 can be customized and adjusted according to the experimental requirements of the scaled-down pavement model to meet diverse experimental scenarios.

[0032] In some embodiments, a slope detector is also included, which is fixedly installed on the lower surface of the planar steel template 3 and is connected to the control panel 12 via signal.

[0033] Example 2: A method for conducting a multi-angle adjustable pavement scale test, utilizing the multi-angle adjustable pavement scale test system described in Example 1, includes the following steps: Step 1: According to the experimental design requirements, mix asphalt and aggregates according to the predetermined mix ratio to prepare pavement material.

[0034] According to the "Specifications for Design of Highway Asphalt Pavement" (JTG D50-2017), asphalt and aggregates are mixed evenly according to the mix proportions in Table 1. The evenly mixed asphalt mixture is the pavement material.

[0035] Table 1 Mix Proportion Table In the table, m 砂 For the mass of fine sand, m 矿粉 For the mass of mineral powder, m沥青 For the mass of asphalt, m 10-20 For the mass of aggregates with a particle size of 10~20mm, m 5-10 This refers to the mass of aggregates with a particle size of 5~10mm.

[0036] Step 2: Lay the pavement material in the enclosure 4, use tools to initially level the pavement material to ensure that the pavement material is evenly distributed and of uniform thickness, and use special compaction equipment to compact the initially leveled pavement material to obtain a pavement scale model.

[0037] The pavement material (uniformly mixed asphalt mixture) is evenly spread into the enclosure 4. A scraper or rake with heating function is used to roughly level and comb the asphalt mixture to make its surface flat and uniform, ensuring that the asphalt mixture is evenly distributed and of consistent thickness. A small vibratory compactor is then used to compact the asphalt mixture.

[0038] Step 3: Connect the power supply to the hydraulic control system 2, initialize the system, and after the initialization is completed, control the corresponding hydraulic subsystem through the controller in the control panel 12. The hydraulic control system 2 drives the experimental platform 1 to rise to the set height, so that the limit sleeve 8 is separated from the support device 7.

[0039] Step 4: Input the preset slope parameters of experimental platform 1 on the control panel 12, and the slope of experimental platform 1 will be adjusted to the required level.

[0040] After inputting the preset slope parameters of the experimental platform 1, the controller in the control panel 12 controls the hydraulic pump 16 and the three-position four-way directional valve in the corresponding hydraulic subsystem, and the hydraulic rod in the hydraulic cylinder 19 rises, thereby realizing the slope adjustment of the experimental platform 1. When the slope detector fixed on the lower surface of the flat steel template 3 detects that the slope of the experimental platform 1 has reached the preset slope, the controller in the control panel 12 controls the three-position four-way directional valve in the corresponding hydraulic subsystem, so that the hydraulic rod in the hydraulic cylinder 19 is locked, and the experimental platform 1 is adjusted to and locked at the required slope.

[0041] In this embodiment, the longitudinal slope is 1.5% and the transverse slope is 1.0%. Step 5: After adjusting the slope of experimental platform 1, install ultrasonic flow meters, ultrasonic level gauges, and other measuring devices on the pavement scale model. Connect the measuring devices to control panel 12 to ensure stable connection and normal signal transmission. Adjusting the slope of experimental platform 1 first, followed by installing the measuring devices, avoids risks such as vibration and collisions to the measuring instruments during the dynamic adjustment of experimental platform 1. This ensures that the measurement reference surface is consistent with the slope of the pavement scale model, resulting in better measurement accuracy.

[0042] Step 6: Set the preset test parameters, and conduct multiple parallel simulated rainfall events on the scaled pavement model using a rainfall device. The required parameters for the test experiment are collected and recorded in real time using a measuring device. The preset test parameters include rainfall intensity, rainfall duration, rainfall volume, and drainage time. The required parameters for the test experiment include maximum drainage speed, drainage volume, and maximum water depth.

[0043] Table 2 is a summary table of parallel test observation results, which summarizes the slope parameters, preset test experimental parameters, and the parameters required for each test experiment.

[0044] Table 2 Summary of Observation Results of Parallel Experiments Step 7: Resetting and returning experimental platform 1 to its original position After multiple parallel test experiments are completed, the corresponding hydraulic subsystem is controlled by the controller in the control panel 12 to restore the experimental platform 1 to a horizontal position, thereby resetting the experimental platform 1. Then, the controller in the control panel 12 controls all the hydraulic subsystems to move the experimental platform 1 down as a whole until the limit sleeve 8 is fitted onto the support device 7, thereby returning the experimental platform 1 to its original position and achieving stable support of the experimental platform 1 in the non-working state.

[0045] It should be noted that due to the randomness of local water flow conditions and the accuracy of sensor measurements, the parameters required for the test experiment obtained from parallel experiments are inconsistent under strict control of input conditions. The average of the parameters required for each test experiment in multiple parallel experiments is taken as the parameters required for the final test experiment.

[0046] By setting different pavement materials, slope parameters, and preset test parameters, parallel tests can be conducted to obtain the parameters required for test experiments under different working conditions.

[0047] It should be noted that the embodiments described in this invention are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains can make various modifications or additions to the described embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A multi-angle adjustable pavement scaling test system, comprising an experimental platform (1), wherein an I-beam frame (6) is provided at the bottom of the experimental platform (1), characterized in that, It also includes a hydraulic control system (2) for multi-angle adjustment of the experimental platform (1). The hydraulic control system (2) includes a control panel (12), an oil tank (14), an oil supply pipe (15), and multiple hydraulic subsystems. The oil outlet of the oil tank (14) is connected to the oil inlet of each hydraulic subsystem through the oil supply pipe (15). The oil outlet of each hydraulic subsystem is connected to the oil inlet of the oil tank (14) through the oil supply pipe (15). The control panel (12) is connected to each set of hydraulic subsystems. The hydraulic subsystem includes a hydraulic cylinder (19). A support (20) is provided at the top of the hydraulic cylinder (19). The support (20) and the I-beam frame (6) form a separable limiting fit.

2. The multi-angle adjustable pavement scaling test system according to claim 1, characterized in that, The hydraulic subsystem includes a hydraulic pump (16), a relief valve (17), a three-position four-way directional valve, and a hydraulic cylinder (19). The oil outlet of the oil tank (14) is connected to the oil inlet of the hydraulic pump (16) through an oil supply pipe (15). The oil outlet of the hydraulic pump (16) is connected to the P port of the corresponding three-position four-way directional valve through an oil supply pipe (15). A relief valve (17) is installed on the oil supply pipe (15) connecting the oil outlet of the hydraulic pump (16) and the P port of the three-position four-way directional valve. The A port of the three-position four-way directional valve is connected to the rodless chamber port of the corresponding hydraulic cylinder (19) through an oil supply pipe (15). The B port of the three-position four-way directional valve is connected to the rod chamber port of the corresponding hydraulic cylinder (19) through the oil supply pipe (15). The T port of the three-position four-way directional valve is connected to the oil inlet of the oil tank (14) through the oil supply pipe (15). The top of the hydraulic rod of the hydraulic cylinder (19) is provided with a support bracket (20). The top of the support bracket (20) is provided with a support groove. The shape of the support groove matches the bottom flange of the I-beam frame (6). The oil tank (14) is provided with a liquid level sensor. The liquid level sensor, the hydraulic pump (16) and the three-position four-way directional valve are respectively connected to the control panel (12) for signal connection.

3. The multi-angle adjustable pavement scaling test system according to claim 2, characterized in that, The hydraulic rod of the hydraulic cylinder (19) is connected to the support bracket (20) via a universal joint.

4. The multi-angle adjustable pavement scaling test system according to claim 3, characterized in that, A rubber pad is provided inside the support groove.

5. The multi-angle adjustable pavement scaling test system according to claim 2, characterized in that, The experimental platform (1) includes a flat steel template (3) and a enclosure (4). The enclosure (4) is fixedly installed on the upper surface of the flat steel template (3). Multiple limiting sleeves (8) are fixedly installed at the bottom of the I-beam frame (6). The limiting sleeves (8) are fitted onto the corresponding support devices (7).

6. The multi-angle adjustable pavement scaling test system according to claim 5, characterized in that, The support device (7) includes a support column (9), multiple column foot stiffening ribs (10) and a base plate (11). Each column foot stiffening rib (10) is fixedly connected to the support column (9) and the base plate (11) respectively. A limiting sleeve (8) is fitted on the top of the support column (9). The base plate (11) is fixed to the ground foundation by anchor bolts.

7. The multi-angle adjustable pavement scaling test system according to claim 6, characterized in that, The surfaces of the support column (9), the column base stiffening rib (10), and the base plate are all provided with anti-corrosion coating or anti-corrosion coating.

8. The multi-angle adjustable pavement scaling test system according to claim 5, characterized in that, It also includes a slope detector, which is fixedly installed on the lower surface of the flat steel template (3) and is connected to the control panel (12) via signal.

9. The multi-angle adjustable pavement scaling test system according to claim 8, characterized in that, The control panel (12) is equipped with operation buttons and a display screen, and has an integrated controller.

10. A multi-angle adjustable pavement scale test method using the multi-angle adjustable pavement scale test system described in Example 1, comprising the following steps: Step 1: According to the experimental design requirements, mix asphalt and aggregates according to the predetermined mix ratio to prepare pavement material; Step 2: Lay the pavement material in the enclosure (4), use tools to initially level the pavement material, and compact the initially leveled pavement material to obtain a pavement scale model. Step 3: Connect the power supply and initialize the system. After the initialization is completed, control all hydraulic subsystems so that the experimental platform (1) rises to the set height as a whole, thereby causing the limit sleeve (8) to separate from the support device (7). Step 4: Control the corresponding hydraulic subsystem to adjust and lock the experimental platform (1) at the preset slope; Step 5: After the slope of the experimental platform (1) is adjusted, the measuring device is set up on the pavement scale model and the measuring device is connected to the control panel (12) for signal connection. Step 6: Set the preset test parameters, conduct multiple parallel simulated rainfalls on the pavement scale model using a rainfall device, and collect and record the required test parameters in real time using a measuring device. Step 7: After multiple parallel test experiments are completed, control the corresponding hydraulic subsystem to restore the experimental platform (1) to a horizontal position, and then control all the hydraulic subsystems to move the experimental platform (1) down as a whole until the limit sleeve (8) is fitted onto the support device (7).

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