Large-particle-size hydraulic asphalt concrete paving method

Abstract

The invention belongs to the field of concrete paving, and provides a large-particle-size hydraulic asphalt concrete paving method which comprises the following steps: S1, flaw detection; s2, monitoring the temperature of the warehouse surface; s3, treating a polluted area; s4, monitoring the temperature according to a temperature monitoring assembly; s5, the diamond net is automatically attached through a mechanical arm or magnetic induction and is seamlessly combined with the material belt; s6, the paved large-particle-size hydraulic asphalt mixture is subjected to rolling compaction; the unmanned aerial vehicle is introduced to carry the intelligent scanner to carry out three-dimensional modeling and data analysis, flaws and pollution areas are automatically recognized, compared with manual inspection, the detection speed and accuracy are remarkably improved, meanwhile, manual intervention is reduced, the flaw recognition and pollution treatment time is shortened, and the construction efficiency is improved; the temperature of the bin surface can be monitored and adjusted in real time, real-time feedback is achieved through a wireless sensor network, the stability of the construction environment is ensured, the construction quality problem caused by uncomfortable temperature is avoided, the stability of a mixture is improved, and the engineering service life is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of concrete paving, specifically a method for paving large-particle-size hydraulic asphalt concrete. Background Technology

[0002] Large-particle-size asphalt concrete (LSP) paving is a method suitable for projects requiring high load-bearing capacity and durability, such as highways, airport runways, and heavy-duty roads. This construction method focuses on improving the uniformity and compaction of the material to ensure good mechanical properties, while addressing problems such as segregation, uneven compaction, and cracking that are common in traditional construction methods.

[0003] Existing methods for paving large-particle-size hydraulic asphalt concrete do not fully consider the impact of different environmental factors, such as climate change, terrain, and traffic load changes, on asphalt mixtures, durability and adaptability, as well as their resistance to environmental weathering, such as salt and alkali, freeze-thaw snow, high temperature, and humidity. The paver lacks a monitoring and regulation function for the temperature of the internal material bins, and any abnormal temperature on the bin surface will affect the stability of the mixture.

[0004] To address the problems raised in the background art, those skilled in the art have proposed a method for paving large-particle-size hydraulic asphalt concrete. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a method for paving large-particle-size hydraulic asphalt concrete. This method solves the problems of existing large-particle-size hydraulic asphalt concrete paving methods not fully considering the impact of different environmental factors, such as climate change, terrain, and traffic load changes, on asphalt mixtures, durability and adaptability, as well as their weather resistance to the environment, such as salt and alkali, freeze-thaw snow, high temperature, and humidity; and the lack of monitoring and regulation function for the temperature of the material bins inside the paver, which can affect the stability of the mixture if the surface temperature of the bins becomes abnormal.

[0006] A method for paving large-particle-size hydraulic asphalt concrete includes the following steps:

[0007] S1. Defect detection: Use drones equipped with intelligent scanners to perform 3D modeling and data analysis of the construction area, automatically identify and mark the location of defects and contaminated areas, and improve detection accuracy.

[0008] S2. Monitor the surface temperature of the paver. Deploy temperature monitoring and temperature regulation components inside the paver's surface and monitor the surface temperature in real time through a wireless sensor network to ensure that the construction environment is always in a suitable state and to provide ideal conditions for subsequent construction.

[0009] S3. Treatment of contaminated areas: cleaning the marked defects and contaminated areas;

[0010] S4. Install a temperature monitoring component at a key location of the paver's discharge device. Based on the temperature monitored by the temperature monitoring component, dynamically adjust the temperature of the mixture using a temperature adjustment component. The temperature monitoring component includes an ultrasonic sensor and a laser rangefinder to ensure real-time monitoring and adaptive adjustment of the material bandwidth.

[0011] S5. Automatically adheres diamond mesh, seamlessly integrating with the material strip;

[0012] S6. Compact the large-particle-size hydraulic asphalt mixture after paving.

[0013] Preferably, S2 includes the following steps:

[0014] S201, Temperature control target setting: The construction temperature range of asphalt mixture is set to 150℃ to 160℃ through the temperature monitoring component;

[0015] S202, Sensor calibration, ensuring that all temperature sensors are installed in the correct positions.

[0016] They are typically located in key positions such as the mixing tank, feeding hopper, and discharge port to ensure data accuracy.

[0017] S203, Data Acquisition: The paver operator's terminal system collects real-time temperature data of the internal and external environment of the mixing tank, raw materials, and mixture through a wireless sensor network.

[0018] S204. Dynamic adjustment: The terminal system automatically adjusts the operation of the temperature regulation component based on the collected temperature data; the temperature regulation component includes a heating element and a cooling component.

[0019] Preferably, step S2 further includes the following steps:

[0020] S205, material temperature feedback: After real-time adjustment, the sensor collects the material temperature again, and the terminal system provides rapid feedback and closed-loop control until the material temperature stabilizes within the set range of ±1℃.

[0021] S206. Discharge monitoring: During discharge, the material temperature sensor continuously monitors the material. If the temperature deviates, the system adjusts in time to avoid temperature fluctuations.

[0022] Preferably, S4 includes the following steps:

[0023] S401. Install high-precision sensors, such as ultrasonic sensors or laser rangefinders, at key locations on the paver's discharge device to ensure the accuracy of the material strip width measurement.

[0024] S402. The control system sets the material width and thickness value based on real-time data; compares it with the set target width, calculates the deviation, and determines the adjustment direction and adjustment amount.

[0025] S403, Adjustment execution: The discharge device automatically adjusts the extrusion pressure, speed, opening size, and drum speed according to the instruction, and responds to control the discharge.

[0026] Preferably, in S6, a 3.0t vibratory roller is used for initial compaction; a heavy-duty double-drum vibratory roller is used for secondary compaction; and for final compaction, a double-drum roller is used with the vibration turned off, and only static compaction and low-frequency vibration are used to complete the final compaction.

[0027] Preferably, the heavy-duty double-drum vibratory roller has staggered compaction trajectories to ensure comprehensive compaction and to replenish compaction of previously uncompacted areas.

[0028] Preferably, the maximum aggregate particle size range of the large-particle-size hydraulic asphalt concrete is 26.5mm to 31.5mm. Within this range, the particle size distribution is optimized, the inter-particle filling capacity is improved, the strength of the mixture is enhanced, drainage is ensured, pore blockage is reduced, and durability is improved.

[0029] Preferably, the paving thickness of the large-particle-size hydraulic asphalt concrete is controlled between 35cm and 40cm. This thickness ensures optimized compaction, reduces voids, and improves durability. At the same time, drainage and thermal stability are taken into account to avoid the potential cracking risk caused by excessive thickness.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This invention introduces a drone equipped with an intelligent scanner for 3D modeling and data analysis, automatically identifying defects and contaminated areas. Compared to manual inspection, this significantly improves detection speed and accuracy, while reducing human intervention, shortening the time for identifying and handling defects and contamination, and improving construction efficiency. It can monitor and adjust the surface temperature in real time, with feedback via a wireless sensor network, ensuring a stable construction environment and avoiding construction quality problems caused by unsuitable temperatures, thus improving the stability of the mixture and extending the project's lifespan. Dynamic temperature adjustment based on temperature, with high-precision sensors monitoring in real time and adaptively adjusting the width and thickness of the material layer, ensures material layer quality, reduces human error, and improves overall construction efficiency and accuracy. The scientific compaction process for large-particle-size mixtures ensures density and uniformity, reduces cracks, and improves durability. Attached Figure Description

[0032] Figure 1 This is a schematic diagram illustrating the steps of this method. Detailed Implementation

[0033] 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.

[0034] Example: As attached Figure 1As shown: This invention provides a method for paving large-particle-size hydraulic asphalt concrete, comprising the following steps:

[0035] S1. Defect detection: Use drones equipped with intelligent scanners to perform 3D modeling and data analysis of the construction area, automatically identify and mark the location of defects and contaminated areas, and improve detection accuracy.

[0036] Using AI-assisted drones or portable scanners for high-precision 3D modeling and data analysis, the system can automatically identify and mark the location of defects and contaminated areas, significantly improving detection accuracy compared to manual inspection.

[0037] S2. Monitor the surface temperature of the paver. Deploy temperature monitoring and temperature regulation components inside the paver's surface and monitor the surface temperature in real time through a wireless sensor network to ensure that the construction environment is always in a suitable state and to provide ideal conditions for subsequent construction.

[0038] S201, Temperature control target setting: The construction temperature range of asphalt mixture is set to 150℃ to 160℃ through the temperature monitoring component;

[0039] S202. Sensor calibration: Ensure that all temperature sensors are installed in the correct positions. Temperature sensors are usually located in key positions such as the mixing tank, feeding hopper, and discharge port to ensure data accuracy.

[0040] S203, Data Acquisition: The paver operator's terminal system collects real-time temperature data of the internal and external environment of the mixing tank, raw materials, and mixture through a wireless sensor network.

[0041] S204. Dynamic adjustment: The terminal system automatically adjusts the operation of the temperature regulation component based on the collected temperature data; the temperature regulation component includes a heating element and a cooling component; the heating element includes a heating rod, a steam nozzle, and a hot water circulation component; the cooling system includes a cold air blower, an atomizing ice water spray pipe, and a cold water circulation component.

[0042] S205, material temperature feedback: After real-time adjustment, the sensor collects the material temperature again, and the terminal system provides rapid feedback and closed-loop control until the material temperature stabilizes within the set range of ±1℃.

[0043] S206. Discharge monitoring: During discharge, the material temperature sensor continuously monitors the material. If the temperature deviates, the system adjusts in time to avoid temperature fluctuations.

[0044] S3. Treatment of contaminated areas: Clean the marked defects and contaminated areas. Use a high-pressure water gun to clean the contaminated areas evenly, reducing manual intervention, improving efficiency and cleaning effect, and reducing environmental pollution.

[0045] S4. Monitor the temperature using the temperature monitoring component and dynamically adjust the temperature of the mixture using the temperature regulation component; install high-precision sensors, such as ultrasonic sensors or laser rangefinders, at key locations of the extrusion device to ensure real-time monitoring and adaptive adjustment of the material bandwidth thickness.

[0046] S401. Install temperature monitoring components at key locations of the paver's discharge device. The temperature monitoring components include ultrasonic sensors and laser rangefinders to ensure the accuracy of the material strip width measurement. Before startup, conduct a no-load test to verify the response speed and accuracy of the sensors and the extrusion device, and adjust the parameters to ensure system adaptability.

[0047] S402. The control system sets the material width and thickness value based on real-time data; compares it with the set target width, calculates the deviation, and determines the adjustment direction and adjustment amount.

[0048] S403, Adjustment execution: The discharge device automatically adjusts the extrusion pressure, speed, opening size, and drum speed according to the instruction, and responds to control the discharge.

[0049] The above steps enable concrete paving to respond more intelligently and quickly to real-time changes, ensuring the accuracy of material width and thickness, reducing manual intervention, and improving construction efficiency.

[0050] S5. Automatically adheres diamond mesh, seamlessly integrating with the material strip;

[0051] S6. Compact the large-particle-size hydraulic asphalt mixture after paving.

[0052] In S6, a 3.0t vibratory roller is used for initial compaction; a heavy-duty double-drum vibratory roller is used for secondary compaction, with the secondary compaction tracks of the heavy-duty double-drum vibratory roller interlacing to ensure comprehensive secondary compaction and to supplement the compaction of previously uncompacted areas; for final compaction, a double-drum roller is used with the vibration turned off, and only static compaction and low-frequency vibration are used to complete the final compaction.

[0053] The maximum aggregate size range of large-diameter hydraulic asphalt concrete is 26.5mm to 31.5mm. Within this range, the aggregate size distribution is optimized to improve the inter-material filling capacity, enhance the strength of the mixture, ensure drainage, reduce pore blockage, and improve durability.

[0054] The paving thickness of large-particle-size hydraulic asphalt concrete is controlled between 35cm and 40cm. This thickness ensures optimized compaction, reduces voids, and improves durability. At the same time, drainage and thermal stability are taken into account to avoid the potential cracking risk caused by excessive thickness.

[0055] As shown above, this method introduces a drone equipped with an intelligent scanner for 3D modeling and data analysis, automatically identifying defects and contaminated areas. Compared with manual inspection, it significantly improves detection speed and accuracy, while reducing human intervention, shortening the time for identifying defects and contamination, and improving construction efficiency. It can monitor and adjust the surface temperature in real time, providing feedback through a wireless sensor network to ensure a stable construction environment, avoiding construction quality problems caused by unsuitable temperatures, improving the stability of the mixture, and extending the project's lifespan. Dynamic adjustment of material temperature based on temperature, with high-precision sensors monitoring in real time, adaptively adjusting the material width and thickness ensures layer quality, reduces human error, and improves overall construction efficiency and accuracy. The scientific compaction steps for large-particle-size mixtures ensure density and uniformity, reduce cracks, and improve durability.

[0056] Strictly controlled material temperature and precise material strip dimensions enable the physical properties of large-particle-size hydraulic asphalt concrete to reach their optimal levels, improving compressive strength, durability, and drainage capacity, and extending the service life of the project. Efficient cleaning and precise temperature control reduce water consumption and energy waste, while also reducing environmental pollution during construction.

[0057] Automated processes reduce manpower requirements and lower labor costs, while precise material control reduces waste and improves the overall economic efficiency of the project.

[0058] It reduces the risks of direct operation by on-site workers, makes the operation of automated equipment safer and more reliable, and improves construction safety.

[0059] The embodiments of the present invention are given for the purposes of illustration and description. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0060] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] The accompanying drawings of the embodiments disclosed in this invention only involve structures related to the embodiments disclosed in this invention. Other structures can refer to general designs. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for paving large-particle-size hydraulic asphalt concrete, characterized in that, Includes the following steps: S1. Defect detection: Use drones equipped with intelligent scanners to perform 3D modeling and data analysis of the construction area, automatically identify and mark the location of defects and contaminated areas; S2. Monitor the surface temperature of the paver bed by deploying temperature monitoring and temperature regulation components inside the paver bed and monitoring the surface temperature in real time through a wireless sensor network. S3. Treatment of contaminated areas: cleaning the marked defects and contaminated areas; S4. Install temperature monitoring components at key locations of the paver's discharge device. Based on the temperature monitoring components, dynamically adjust the temperature of the mixture using temperature regulation components. S5. Automatically adheres diamond mesh, seamlessly integrating with the material strip; S6. Compact the large-particle-size hydraulic asphalt mixture after paving.

2. The method for paving large-particle-size hydraulic asphalt concrete as described in claim 1, characterized in that: S2 includes the following steps: S201, Temperature control target setting: The construction temperature range of asphalt mixture is set to 150℃ to 160℃ through the temperature monitoring component; S202, Sensor calibration, ensuring that all temperature sensors are installed in the correct positions; S203, Data Acquisition: The paver operator's terminal system collects real-time temperature data of the internal and external environment of the mixing tank, raw materials, and mixture through a wireless sensor network. S204. Dynamic adjustment: The terminal system automatically adjusts the operation of the temperature regulation component based on the collected temperature data; the temperature regulation component includes a heating element and a cooling component.

3. The method for paving large-particle-size hydraulic asphalt concrete as described in claim 2, characterized in that: S2 also includes the following steps: S205, material temperature feedback: After real-time adjustment, the sensor collects the material temperature again, and the terminal system provides rapid feedback and closed-loop control until the material temperature stabilizes within the set range of ±1℃. S206. Discharge monitoring: Ensure continuous monitoring by the material temperature sensor during discharge.

4. The method for paving large-particle-size hydraulic asphalt concrete as described in claim 1 or 3, characterized in that: S4 includes the following steps: S401. Install temperature monitoring components at key locations of the paver's discharge device; S402. The control system sets the material width and thickness value based on real-time data; compares it with the set target width, calculates the deviation, and determines the adjustment direction and adjustment amount. S403, Adjustment execution: The discharge device automatically adjusts the extrusion pressure, speed, opening size, and drum speed according to the instruction, and responds to control the discharge.

5. The method for paving large-particle-size hydraulic asphalt concrete as described in claim 4, characterized in that: In S6, a 3.0t vibratory roller is used for initial compaction; a heavy-duty double-drum vibratory roller is used for secondary compaction; for final compaction, a double-drum roller is used with the vibration turned off, and only static compaction and low-frequency vibration are used to complete the final compaction.

6. The method for paving large-particle-size hydraulic asphalt concrete as described in claim 5, characterized in that: The heavy-duty double-drum vibratory roller uses staggered compaction tracks to ensure comprehensive compaction and to replenish previously uncompacted areas.

7. The method for paving large-particle-size hydraulic asphalt concrete as described in claim 5, characterized in that: The maximum aggregate particle size range of the large-particle-size hydraulic asphalt concrete is 26.5mm to 31.5mm.

8. The method for paving large-particle-size hydraulic asphalt concrete as described in claim 6, characterized in that: The paving thickness of the large-particle-size hydraulic asphalt concrete is controlled between 35cm and 40cm.

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