Pavement forming state simulation detection method and detection device

Abstract

The invention provides a pavement forming state simulation detection method and detection device, and relates to the technical field of pavement detection.The pavement forming state simulation detection device comprises a bearing base, the bearing base is provided with a laying mechanism facilitating pavement simulation, and the bearing base is provided with a partition plate mechanism simulating the environment; the laying mechanism comprises a bearing base, a power supply box and a simulation laying cavity, the partition plate mechanism comprises a laying partition plate, a heat insulation plate, a first temperature control device and a top shield, the power supply box is fixedly installed on the inner side wall of the bearing base, and the simulation laying cavity is fixedly installed on the inner side wall of the bearing base. According to the invention, an overall modular structure and an experiment scene capable of being quickly reconstructed are arranged, so that a large-size single cavity can be expanded to simulate wide pavement paving by removing and paving a partition plate; a multi-group comparison mode is switched when the partition plates are inserted and laid, the power connection slots are freely positioned to meet the asymmetrical bin position layout requirement, and the disassembly and assembly process is rapid.

Description

Technical Field

[0001] This invention belongs to the field of road surface testing technology, and more specifically, relates to a method and device for simulating and testing road surface forming state. Background Technology

[0002] The core significance of road surface simulation testing lies in accurately reproducing real road construction and service conditions through a highly controllable laboratory environment. This allows for the quantitative evaluation of material performance, optimization of process parameters, and prediction of long-term durability, thereby avoiding the high costs and uncontrollable risks of on-site testing. It provides data support for road engineering design, a verification platform for material innovation, and a scientific basis for the formulation of construction specifications, thereby improving road lifespan and reducing the overall maintenance cost from the source.

[0003] The Chinese patent publication number is CN110907320B, which discloses a laboratory method for simulating road dust generation and detection. This invention, by simulating the actual state of the road surface and combining it with the wheel rolling of a variable load test vehicle, can more conveniently and efficiently detect the factors affecting road dust generation in the laboratory.

[0004] Existing road surface forming simulation and testing equipment has the following drawbacks: Low experimental efficiency: Traditional road forming simulation testing equipment only has a single paving cavity, which means that when testing cement or asphalt mixtures with different proportions, the equipment needs to be cleaned multiple times every time the material is changed, which wastes time and effort and makes the experiment inefficient. It is impossible to quickly and intuitively compare the differences in hardening rate, segregation degree and compaction of multiple materials in a consistent environment, and the experimental process is cumbersome and complicated. Limited Environmental Simulation: Traditional equipment can only provide a single environmental condition, failing to meet the need for data testing of the same slurry mix in different environments. This restricts the optimization of pavement slurry mix proportions, making it difficult to accurately determine the most suitable slurry mix proportions for different actual working conditions. Multiple devices must be used for separate experiments, resulting in low efficiency and long experimental cycles.

[0005] In view of this, we will study and improve the existing structure and its deficiencies, and provide a method and device for simulating and detecting the road surface forming state, in order to achieve a more practical purpose. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a method and apparatus for simulating and detecting road surface forming state.

[0007] A road surface forming state detection device includes a receiving base, on which a paving mechanism is provided for simulating road surface paving. The receiving base also includes a partition mechanism for simulating environmental conditions. The paving mechanism comprises the receiving base, a power supply box, and a simulated paving cavity. The partition mechanism includes a paving partition plate, a heat insulation plate, a first temperature control device, and a top cover. The power supply box is fixedly installed on the inner wall of the receiving base. The simulated paving cavity is fixedly installed on the inner wall of the receiving base. The paving partition plate is slidably installed on the inner wall of the simulated paving cavity. The heat insulation plate is located at the upper end of the paving partition plate. The first temperature control device is fixedly installed at the side end of the heat insulation plate. The top cover is located at the upper end of the simulated paving cavity. Two guide rods are fixedly installed on the inner wall of the receiving base. Multiple first mounting circular grooves are formed at the upper end of the receiving base. Movable transverse grooves are formed through both sides of the receiving base. Multiple power connection slots are provided on the inner wall of the receiving base. A movable base is fixedly installed at the lower end of each power connection slot. Each of the movable bases has a cylindrical groove extending through its side end, and each movable base is slidably mounted on a guide rod through the cylindrical groove. Each movable base has a pointing rod fixedly mounted on its side end, and each pointing rod is slidably mounted in a movable horizontal groove. A power supply line is fixedly installed between each power connection slot and the power supply box. The upper end of each simulated laying cavity has two clearance slots, and the upper end of each simulated laying cavity has multiple second mounting circular slots. Visual glass is fixedly mounted through the two ends of the inner sidewall of each clearance slot. A horizontal bar is fixedly mounted on the upper end of each laying partition plate. A rectangular socket is opened at the upper end of the horizontal bar, and two second plug-in posts are fixedly mounted at the lower end of the horizontal bar. Each second plug-in post is slidably mounted on the inner sidewall of each second mounting circular slot. The insulation plate is slidably mounted on the inner sidewall of the rectangular socket. A vacuum layer is used inside the insulation plate. Hollow uprights are fixedly mounted on both ends of the insulation plate, and power connectors are fixedly mounted on the lower ends of the hollow uprights.

[0008] Preferably, a connecting wire is fixedly installed on the side end of the first temperature control device. The connecting wire passes through the inner wall of the hollow upright and is connected to a power plug at its end.

[0009] Preferably, a second temperature control device is fixedly installed through the upper end of the top cover, glass covers are fixedly installed on all four sides of the top cover, and a plurality of first plug-in posts are fixedly installed on the lower end of the top cover, each of the first plug-in posts being slidably installed on the inner side wall of the first mounting groove.

[0010] A method for simulating and detecting the pavement forming state, comprising the following steps: S1: Before conducting the simulation, the simulated grouting material must be accurately prepared. Weigh the cement, admixtures and aggregates according to the designed water-cement ratio, and mix them thoroughly until uniform. S2: When simulating the molding state of road surfaces with different proportions of raw materials under the same environment, the road surfaces with different raw materials can be laid in sections. Users can install only the laying partition plates, divide the simulated laying cavity, and then lay the slurry. S3: When conducting simulation tests on the forming state of road surfaces with the same raw material ratio under different environments, it is also necessary to divide the top cover to realize the division of chambers for different environments, and then lay the slurry. S4: Then, the temperature inside the chamber can be set to the target working condition through the first temperature control device, and the initial and final setting times of the slurry can be recorded simultaneously. After the slurry enters the hardening stage, a three-dimensional laser scanner is used to continuously scan the road surface to capture changes in surface morphology, while an infrared thermal imager is used to monitor the temperature field distribution. Finally, the three-dimensional model of the road surface is reconstructed through data analysis software for detection and analysis.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this invention, by providing simulated paving cavities and paving partitions, the physically separated independent simulated paving cavities are formed by inserting paving partitions to create multiple isolated chambers. This allows for the simultaneous filling of cement or asphalt mixtures with different proportions and observation of the molding process under identical temperature, humidity, and compaction conditions. This avoids the problem of low experimental efficiency caused by the need for multiple cleaning and material replacement in traditional testing simulation equipment. It enables a direct comparison of the hardening rate, segregation degree, and density differences of multiple materials in a completely consistent environment with a single start-up, simplifying the process.

[0012] In this invention, a top cover and a heat insulation plate are provided. The heat insulation plate physically separates the top cover to form independent climate units. Each chamber can independently set differentiated temperature and humidity parameters. This function can avoid the single-environment limitation of traditional equipment, and allow the same slurry ratio to be tested in different environments, so as to accurately optimize the slurry ratio of the road surface.

[0013] In this invention, by providing a heat insulation plate and a vacuum layer, the heat insulation plate adopts a vacuum composite sandwich structure, thereby reducing the thermal conductivity coefficient when dividing the interior of the top cover, effectively blocking the heat transfer between adjacent chambers, and ensuring the reliability of extreme temperature difference control experiment data when high and low temperature environments coexist.

[0014] In this invention, by using a power connector slot and a pointing rod, the power connector slot can be visually adjusted. The circuit is automatically turned on only when the power connector plug is engaged with the power connector slot, and the power is turned off when the plug is removed. This avoids the energy waste of traditional continuous power supply to the entire cabin, and only supplies power to the first temperature control device that needs to work, thereby reducing energy consumption.

[0015] In this invention, by adopting an overall modular structure and a rapidly reconfigurable experimental scenario, removing the paving divider can expand the device into a large-size single-cavity simulation of wide-width road paving; inserting the paving divider switches to a multi-group control mode; the power connection slot can be freely positioned to meet the requirements of asymmetrical compartment layout; the disassembly and assembly process is quick, significantly improving the equipment reuse rate and experimental flexibility, and adapting to the full-dimensional testing needs from material research and development to construction process verification. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the support base of the present invention; Figure 2 This is a schematic diagram of the structure of the top cover of the present invention; Figure 3 This is a schematic diagram of the structure of the insulation board of the present invention; Figure 4 This is a schematic diagram of the structure of the simulated laying cavity of the present invention; Figure 5 This is a schematic diagram of the structure of the partition plate of the present invention; Figure 6 This is a schematic diagram of the power supply box of the present invention; Figure 7 This is a schematic diagram of the power connector slot of the present invention; Figure 8 This is an exploded view of the power supply box of the present invention.

[0017] In the diagram, the correspondence between component names and attached drawing numbers is as follows: 1. Receiving base; 11. Guide rod; 12. First mounting circular groove; 13. Movable horizontal groove; 2. Power supply box; 21. Power supply line; 22. Movable base; 23. Columnar groove; 24. Pointing rod; 25. Power connection slot; 3. Simulated laying cavity; 31. Clearance groove; 32. Second mounting circular groove; 33. Visible glass; 4. Laying partition plate; 41. Horizontal bar; 42. Rectangular socket; 43. Second insertion post; 5. Insulation board; 51. Vacuum layer; 52. Hollow upright; 53. Power plug; 6. First temperature control device; 61. Connecting wire; 7. Top cover; 71. Second temperature control device; 72. Glass cover; 73. First insertion post. Detailed Implementation

[0018] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0019] Please see Figure 1 - Figure 8This invention provides a road surface forming state detection device, including a receiving base 1, a paving mechanism for simulating road surface paving on the receiving base 1, and a partition mechanism for simulating the environment on the receiving base 1. The paving mechanism includes the receiving base 1, a power supply box 2, and a simulated paving cavity 3. The partition mechanism includes a paving partition plate 4, a heat insulation plate 5, a first temperature control device 6, and a top cover 7. Before simulation, the simulated grouting material must be accurately prepared. Cement, admixtures, and aggregates are weighed according to the designed water-cement ratio, and thoroughly mixed until uniform. After cleaning the inside of the simulated paving cavity 3, the material is spread at the bottom. The sand and gravel base course is compacted to the set thickness to ensure minimal flatness error. A precast grout layer is then poured on top and leveled to the target thickness. The temperature inside the chamber is then set to the target operating condition using the first temperature control device 6, and the initial and final setting times of the grout are recorded simultaneously. Once the grout enters the hardening stage, a 3D laser scanner continuously scans the road surface to capture changes in surface morphology, while an infrared thermal imager monitors the temperature field distribution. Finally, a 3D model of the road surface is reconstructed using data analysis software, and key parameters such as flatness deviation, crack development degree, and temperature gradient are quantitatively calculated to extrapolate performance characteristics such as permeability and frost resistance. The power supply box 2 is fixedly installed on the inner wall of the receiving base 1. The simulated laying cavity 3 is fixedly installed on the inner wall of the receiving base 1. The laying partition plate 4 is slidably installed on the inner wall of the simulated laying cavity 3. The heat insulation plate 5 is located at the upper end of the laying partition plate 4. The first temperature control device 6 is fixedly installed at the side end of the heat insulation plate 5. The top cover 7 is located at the upper end of the simulated laying cavity 3. Two guide rods 11 are fixedly installed on the inner wall of the receiving base 1. Multiple first mounting circular grooves 12 are opened at the upper end of the receiving base 1. Movable transverse grooves 13 are opened through both ends of the receiving base 1. Multiple power connection slots are provided on the inner wall of the receiving base 1. 25. Each power connection slot 25 has a fixedly installed movable base 22 at its lower end. Each movable base 22 has a through-groove cylindrical groove 23 at its side end. Each movable base 22 is slidably mounted on the guide rod 11 through the cylindrical groove 23. Each movable base 22 has a fixedly installed pointing rod 24 at its side end. Each pointing rod 24 is slidably mounted in the movable transverse groove 13. A power supply line 21 is fixedly installed between each power connection slot 25 and the power supply box 2. The upper end of the simulated laying cavity 3 has two clearance grooves 31. The upper end of each simulated laying cavity 3 has multiple second mounting circular grooves 32 to avoid... Visible glass 33 is fixedly installed through both ends of the inner wall of the groove 31. A crossbar 41 is fixedly installed at the upper end of each paving partition plate 4. A rectangular insertion port 42 is opened at the upper end of the crossbar 41. Two second insertion posts 43 are fixedly installed at the lower end of the crossbar 41. Each second insertion post 43 is slidably installed on the inner wall of each second mounting circular groove 32. When simulating the forming state test of road surfaces with different proportions of raw materials under the same environment, road surfaces with different raw materials can be paved in sections. The user can install only the paving partition plate 4. The user can insert the paving partition plate 4 into the simulated paving cavity 3. Move the laying partition plate 4 to a suitable position, insert the second insertion post 43 into the second mounting groove 32, and divide the interior of the simulated laying cavity 3 into sections. If there are multiple sets of controls, multiple laying partition plates 4 can be inserted at equal intervals as needed to divide the simulated laying cavity 3 into sections. After the sections are divided, different slurry configurations and laying can be carried out. After the slurry is laid, the top cover 7 can be placed on top of the simulated laying cavity 3, so that the first insertion post 73 is inserted into the inner wall of the first mounting groove 12. The temperature of the simulated environment is controlled by adjusting the second temperature control device 71, so as to carry out subsequent testing work. The insulation plate 5 is slidably installed on the inner wall of the rectangular socket 42. A vacuum layer 51 is used inside the insulation plate 5. Hollow uprights 52 are fixedly installed on both ends of the insulation plate 5. A power plug 53 is fixedly installed on the lower end of the hollow uprights 52. When conducting simulation tests on the molding state of the road surface with the same raw material ratio under different environments, after the second step of installing the paving partition plate 4, the top cover 7 can continue to be divided into chambers. The user can install the insulation plate 5 on the corresponding paving partition plate 4. The user can insert the insulation plate 5 into the inner wall of the rectangular socket 42. When the insulation plate 5 is inserted into the rectangular socket 42, the insulation plate 5 will simultaneously drive the hollow uprights 52 on both sides to insert into the clearance groove 31. A connecting wire 61 is fixedly installed on the side end of the first temperature control device 6. The connecting wire 61 passes through the inner wall of the hollow upright 52, and the end of the connecting wire 61 is connected to the power plug 53. A second temperature control device 71 is fixedly installed through the upper end of the top cover 7. Glass covers 72 are fixedly installed on all four sides of the top cover 7. Multiple first plug-in posts 73 are fixedly installed on the lower end of the top cover 7. Each first plug-in post 73 is slidably installed on the inner wall of the first mounting groove 12. On both sides of the receiving base 1, the user can slide the position of the guide rod 24. The guide rod 24 slides the power socket 25 on the multi-point movable base 22, so that the position of the power socket 25 corresponds to the position of the power plug 53. Below the hollow upright 52 The power connector 53 can be simultaneously inserted into the power connector slot 25 during the installation of the insulation board 5, thus activating the first temperature control device 6. This allows the first temperature control device 6 to be activated simultaneously with the installation of the insulation board 5. After the insulation board 5 is installed, the user can mix the slurry again for laying. After laying, the top cover 7 can be installed on the receiving base 1. Each first temperature control device 6 can be independently activated via infrared remote control, allowing for independent temperature control of each chamber. A vacuum layer 51 is also provided on the insulation board 5, effectively blocking the temperature influence between different chambers and simulating different environments. Under these conditions, the road surface condition is recorded and detected, enabling simulation testing of the forming state of the road surface with the same raw material ratio under different environments.

[0020] Working principle: The first step, the core significance of road surface simulation testing, lies in accurately replicating the actual road construction and service conditions through a highly controllable laboratory environment. This allows for the quantitative evaluation of material performance, optimization of process parameters, and prediction of long-term durability. Before simulation, the simulated grouting material must be precisely prepared. Cement, admixtures, and aggregates are weighed according to the designed water-cement ratio and thoroughly mixed until homogeneous. After cleaning the interior of the simulated paving cavity 3, a compacted sand and gravel base layer is laid at the bottom to the set thickness to ensure minimal flatness error. Subsequently, a precast grout layer is poured on top and leveled to the target thickness. Then, the temperature inside the cavity is set to the target working condition using the first temperature control device 6, and the initial and final setting times of the grout are recorded simultaneously. Once the grout enters the hardening stage, a 3D laser scanner is used to continuously scan the road surface to capture changes in surface morphology, while an infrared thermal imager monitors the temperature field distribution. Finally, a 3D model of the road surface is reconstructed using data analysis software to quantitatively calculate key parameters such as flatness deviation, crack development degree, and temperature gradient, completing the deduction of properties such as permeability and frost resistance.

[0021] The second step, in actual road surface simulation testing, may require multiple sets of control experiments, such as simulating the forming state of road surfaces with different raw material ratios under the same environment, or the forming state of road surfaces with the same raw material ratio under different environments, to obtain more reliable data. Users can use this device to conduct multiple sets of control simulation tests. First, when simulating the forming state of road surfaces with different raw material ratios under the same environment, road surfaces with different raw materials can be laid in sections. Users can install only the paving divider plate 4. Users can insert the paving divider plate 4 into the simulation paving cavity 3. 4. Move the device to a suitable position and insert the second insertion post 43 into the second mounting groove 32 to divide the interior of the simulated laying cavity 3 into sections. If there are multiple control groups, multiple laying partition plates 4 can be inserted at equal intervals as needed to divide the simulated laying cavity 3 into sections. After the sections are divided, different slurry configurations and laying can be carried out. After the slurry is laid, the top cover 7 can be placed on top of the simulated laying cavity 3 so that the first insertion post 73 is inserted into the inner wall of the first mounting groove 12. The temperature of the simulated environment can be controlled by adjusting the second temperature control device 71 to carry out subsequent testing work. This device, by setting up simulated paving chambers 3 and paving partition plates 4, physically separates the independent simulated paving chambers 3. By inserting paving partition plates 4, multiple isolated chambers are formed, allowing for the simultaneous filling of cement or asphalt mixtures with different proportions and observation of the molding process under completely identical temperature, humidity, and compaction conditions. This avoids the problem of low experimental efficiency caused by the need for multiple cleaning and material replacement in traditional testing simulation equipment. It enables a direct comparison of the hardening rate, segregation degree, and density differences of multiple materials in a completely consistent environment with a single start-up, simplifying the process.

[0022] The third step involves simulating the molding state of road surfaces with the same raw material ratio under different environments. After installing the paving divider 4 in the second step, the top cover 7 can be further divided into chambers. The user can install the insulation board 5 on the corresponding paving divider 4. The user can insert the insulation board 5 into the inner wall of the rectangular socket 42. When the insulation board 5 is inserted into the rectangular socket 42, it will simultaneously drive the hollow uprights 52 on both sides to insert into the clearance groove 31. On both sides of the receiving base 1, the user can slide the position of the guide rod 24. The guide rod 24 slides the power connection slot 25 on the multi-point movable base 22, so that the position of the power connection slot 25 corresponds to the position of the power connection plug 53. The hollow uprights 52 below... When the insulation board 5 is installed, the power connector 53 can be simultaneously inserted into the power connector slot 25, so that the first temperature control device 6 is activated. Thus, the first temperature control device 6 is activated at the same time as the installation of the insulation board 5 is completed. After the installation of the insulation board 5 is completed, the user can mix the slurry again for laying. After laying, the top cover 7 can be installed on the receiving base 1. Through the infrared remote control device, each first temperature control device 6 can be started independently to control the temperature of each chamber independently. The insulation board 5 is also equipped with a vacuum layer 51, which can effectively block the temperature influence between different chambers and realize the simulation of different environments. Under this condition, the road surface condition is recorded and detected, realizing the simulation detection of the forming state of the road surface with the same raw material ratio under different environments. This device is equipped with a top cover 7 and a heat insulation plate 5. The heat insulation plate 5 physically separates the top cover 7 into independent climate units. Each chamber can be independently set with different temperature and humidity parameters. This function can avoid the limitation of traditional equipment in a single environment. It allows the same slurry ratio to be tested in different environments, and can accurately optimize the slurry ratio of the road surface. This device is equipped with a heat insulation plate 5 and a vacuum layer 51. The heat insulation plate 5 adopts a vacuum composite sandwich structure, which reduces the thermal conductivity coefficient when the inside of the top cover 7 is divided, effectively blocking the heat transfer between adjacent chambers, and ensuring the reliability of extreme temperature difference control experiment data when high and low temperature environments coexist. This device achieves visual adjustment of the power socket 25 by setting up a power socket 25 and a pointing rod 24. The circuit is automatically turned on only when the power plug 53 is engaged with the power socket 25, and the power is turned off when it is pulled out. This avoids the energy waste of traditional continuous power supply to the whole cabin. Power is only supplied to the first temperature control device 6 that needs to work, thereby reducing energy consumption. This device features an overall modular structure and a rapidly reconfigurable experimental environment. Removing the paving divider 4 expands it into a large-size single-cavity simulation of wide-width road paving; inserting the paving divider 4 switches to a multi-group control mode; the power connection slot 25 can be freely positioned to meet the requirements of asymmetrical compartment layout. The disassembly and assembly process is quick, significantly improving the equipment reuse rate and experimental flexibility, and adapting to all-dimensional testing needs from material research and development to construction process verification.

[0023] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A road surface forming condition detection device, comprising a receiving base (1), characterized in that: The receiving base (1) is provided with a paving mechanism to facilitate the paving simulation of the road surface, and the receiving base (1) is provided with a partition mechanism to simulate the environment. The laying mechanism includes a receiving base (1), a power supply box (2), and a simulated laying cavity (3). The partition mechanism includes a laying partition plate (4), a heat insulation plate (5), a first temperature control device (6), and a top cover (7). The power supply box (2) is fixedly installed on the inner side wall of the receiving base (1). The simulated laying cavity (3) is fixedly installed on the inner side wall of the receiving base (1). The laying partition plate (4) is slidably installed on the inner side wall of the simulated laying cavity (3). The heat insulation plate (5) is located at the upper end of the laying partition plate (4). The first temperature control device (6) is fixedly installed at the side end of the heat insulation plate (5). The top cover (7) is located at the upper end of the simulated laying cavity (3).

2. The road surface forming state detection device as described in claim 1, characterized in that, Two guide rods (11) are fixedly installed on the inner side wall of the receiving base (1). Multiple first mounting circular grooves (12) are opened at the upper end of the receiving base (1). Movable transverse grooves (13) are opened through both ends of the receiving base (1).

3. The road surface forming state detection device as described in claim 2, characterized in that, The inner wall of the receiving base (1) is provided with a plurality of power connection slots (25), and a movable base (22) is fixedly installed at the lower end of each power connection slot (25). A cylindrical groove (23) is opened through the side end of each movable base (22). Each of the movable bases (22) is slidably mounted on the guide rod (11) via a cylindrical groove (23).

4. The road surface forming state detection device as described in claim 3, characterized in that, Each of the movable bases (22) is fixedly installed with a guide rod (24) at its side end. Each guide rod (24) is slidably installed in the movable transverse groove (13). A power supply line (21) is fixedly installed between each power connection slot (25) and the power supply box (2).

5. The road surface forming state detection device as described in claim 4, characterized in that, The upper end of the simulated laying cavity (3) has two clearance grooves (31), and the upper end of each simulated laying cavity (3) has multiple second mounting circular grooves (32). Both sides of the inner wall of the clearance groove (31) are fixedly installed with viewing glass (33).

6. The road surface forming state detection device as described in claim 5, characterized in that, Each of the laying partitions (4) has a crossbar (41) fixedly installed at its upper end. The upper end of the crossbar (41) has a rectangular socket (42). The lower end of the crossbar (41) has two second plug-in posts (43) fixedly installed. Each second plug-in post (43) is slidably installed on the inner side wall of each second mounting groove (32).

7. The road surface forming state detection device as described in claim 6, characterized in that, The insulation plate (5) is slidably installed on the inner wall of the rectangular socket (42). A vacuum layer (51) is used inside the insulation plate (5). Hollow uprights (52) are fixedly installed on both sides of the insulation plate (5). A power plug (53) is fixedly installed on the lower end of the hollow uprights (52).

8. The road surface forming state detection device as described in claim 7, characterized in that, The first temperature control device (6) has a connecting wire (61) fixedly installed on its side end. The connecting wire (61) is installed through the inner wall of the hollow pole (52). The end of the connecting wire (61) is connected to the power plug (53).

9. The road surface forming state detection device as described in claim 8, characterized in that, The upper end of the top cover (7) is fixedly installed with a second temperature control device (71), and glass covers (72) are fixedly installed on all four sides of the top cover (7). A plurality of first plug-in posts (73) are fixedly installed on the lower end of the top cover (7), and each first plug-in post (73) is slidably installed on the inner side wall of the first mounting groove (12).

10. A method for simulating and detecting the pavement forming state, characterized in that, The steps are as follows: S1: Before conducting the simulation, the simulated grouting material must be accurately prepared. Weigh the cement, admixtures and aggregates according to the designed water-cement ratio, and mix them thoroughly until uniform. S2: When simulating the molding state test of road surfaces with different proportions of raw materials under the same environment, the road surfaces with different raw materials can be laid in sections. Users can install only the laying partition plate (4), divide the simulated laying cavity (3), and then lay the slurry. S3: When conducting simulation tests on the molding state of road surfaces with the same proportion of raw materials under different environments, it is also necessary to divide the top cover (7) to realize the division of chambers in different environments, and then lay the slurry. S4: Then, the temperature inside the chamber can be set to the target working condition through the first temperature control device (6), and the initial and final setting times of the slurry can be recorded simultaneously. After the slurry enters the hardening stage, the road surface is continuously scanned by a three-dimensional laser scanner to capture the changes in surface morphology. At the same time, the temperature field distribution is monitored by an infrared thermal imager. Finally, the three-dimensional model of the road surface is reconstructed through data analysis software for detection and analysis.

Images