Intelligent maintenance system and method for cement stabilized macadam base

Abstract

The invention discloses an intelligent maintenance system and method for a cement stabilized macadam base. The maintenance system comprises a monitoring module, an intelligent control module, maintenance equipment and a covering material, the monitoring module comprises a temperature and humidity sensor, a moisture evaporation sensor and an environment monitor; the intelligent control module comprises a data collector, a data processing unit and a controller; the maintenance equipment comprises a water tank, a water pump, pipelines and nozzles. The maintenance method adopts the maintenance system and further comprises the maintenance steps of data acquisition, data analysis and processing, maintenance decision and control and real-time monitoring and adjustment. The system has the beneficial effects that by monitoring the temperature, humidity, moisture evaporation rate and environmental parameters of the cement stabilized macadam base in real time and utilizing the data processing and control module to accurately calculate maintenance parameters, accurate maintenance of the base is achieved, uniform development of the strength of the base is ensured, generation of diseases such as cracks is effectively reduced, and the service life of a road is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of road engineering base maintenance, and specifically relates to an intelligent maintenance system and method for a cement-stabilized gravel base. Background Art

[0002] As a critical load-bearing layer in road structures, the quality of a cement-stabilized gravel base directly impacts the road's service life and driving comfort. After construction, a cement-stabilized gravel base requires scientific and rational maintenance to ensure adequate hydration of the cement and enhance the base's strength, integrity, and stability.

[0003] Traditional cement-stabilized gravel base maintenance mainly relies on sprinkler trucks combined with manual watering or simple spraying equipment, which has many disadvantages. For example, manual watering maintenance is labor-intensive and inefficient, and it is difficult to ensure the uniformity and timeliness of watering, which can easily lead to local uneven dryness and wetness in the base, affecting the uniform development of the base strength and increasing the risk of cracks. Although simple spraying equipment can achieve semi-automatic spraying to a certain extent, it cannot adjust the maintenance in real time according to the actual conditions of the base and environmental factors. For example, it cannot accurately control the spraying time and spraying water volume according to different weather conditions (such as temperature, humidity, sunlight intensity, etc.) and the evaporation rate of the base water, resulting in poor maintenance effect, wasting water resources, and may also affect the quality of the base due to insufficient or excessive maintenance.

[0004] With the continuous advancement of science and technology, the application of intelligent technology in the field of road engineering has received more and more attention. It is of great practical significance to develop an intelligent maintenance system and method that can monitor the base status and environmental parameters in real time and automatically adjust the maintenance strategy according to the monitoring results. Summary of the Invention

[0005] The purpose of this application is to provide an intelligent maintenance system and method for cement-stabilized gravel base, which mainly improves intelligent control of maintenance, timely and accurate maintenance, uniformity of maintenance, and water saving and environmental protection. It has the characteristics of wide application range, convenient construction, high degree of intelligence, precise maintenance, improved maintenance efficiency and quality, reduced labor costs, and water resource saving.

[0006] The purpose of this application is achieved through the following technical solutions:

[0007] A cement-stabilized gravel base intelligent maintenance system includes a monitoring module, an intelligent control module, maintenance equipment and covering materials; the monitoring module includes a temperature and humidity sensor, a moisture evaporation sensor and an environmental monitor; the intelligent control module includes a data collector, a data processing unit and a controller, the monitoring templates are electrically connected to the data collector, the data collector is electrically connected to the data processing unit, the data processing unit is electrically connected to the controller, and the controller is electrically connected to the water pump of the maintenance equipment; the maintenance equipment includes a water tank, a water pump, a pipeline and a nozzle, the water tank is connected to the pipeline, and the water pump and the nozzle are provided on the pipeline.

[0008] Furthermore, several temperature and humidity sensors are evenly arranged at different depths on the surface and inside the cement-stabilized gravel base to monitor the temperature and humidity changes of the base in real time; several layers of temperature and humidity sensors are arranged on the surface of the base and downward, with a vertical spacing of 0.1-0.3m, a horizontal spacing of 3.0-3.5m, and a longitudinal spacing of 20-30m.

[0009] Furthermore, water evaporation rate sensors are installed on the surface of the base layer at intervals of 30-50m to monitor the evaporation rate of water on the surface of the base layer in real time.

[0010] Furthermore, an environmental monitor is set up in the middle of the water-stable base construction section at the construction site to monitor environmental parameters such as atmospheric temperature, humidity, wind speed, and sunlight intensity.

[0011] Furthermore, the data collector is electrically connected to the temperature and humidity sensors, water evaporation sensors and environmental monitors to collect data monitored by various sensors in real time and transmit the data to the data processing unit; the data collector has high-speed data collection capabilities and can complete the collection and preliminary organization of all sensor data.

[0012] Furthermore, the data processing unit uses a high-performance processor to analyze and process the collected data; by establishing a mathematical model, the maintenance parameters required for the current base layer are calculated based on the temperature, humidity, water evaporation rate and environmental parameters of the base layer. The maintenance parameters include spraying time and spraying water volume.

[0013] Furthermore, the controller controls the operation of the execution module according to the maintenance parameters calculated by the data processing unit, controls the start and stop of the spraying equipment, and adjusts the spraying flow and pressure of the spraying equipment.

[0014] Furthermore, the water storage capacity of the water tank is not less than 20m 3The pipeline adopts φ14-26mm plastic hose, the water pump adopts high-pressure water pump, and a group of self-rotating nozzles are set every 5m-10m along the pipeline, and the nozzle coverage diameter is not less than 5m; the water tank is used to store maintenance water, and the water pump transports the water in the water tank to the nozzle through the pipeline. The nozzle sprays the water evenly on the surface of the cement-stabilized gravel base geotextile; the nozzle can achieve fan-shaped or circular spray, and the spray uniformity is more than 95%.

[0015] Furthermore, the covering material is geotextile, which is covered on the surface of the base layer to reduce water evaporation and prevent the base layer from being damaged by external factors; the covering device is a reel, which can quickly complete the laying and recycling operations of the covering material.

[0016] A method for intelligent maintenance of a cement-stabilized gravel base adopts the above-mentioned intelligent maintenance system for the cement-stabilized gravel base and also includes maintenance steps of data collection, data analysis and processing, maintenance decision-making and control, and real-time monitoring and adjustment.

[0017] Data acquisition: After the system is started, the temperature and humidity sensors, moisture evaporation sensors and environmental monitors collect data on the temperature, humidity, moisture evaporation rate of the cement-stabilized gravel base, as well as the atmospheric temperature, humidity, wind speed and sunshine intensity, and transmit the data in real time to the data processing unit through the data collector.

[0018] Data analysis and processing: The data processing unit organizes and analyzes the received data, and calculates the current moisture loss of the base layer and the required maintenance parameters based on the preset mathematical model and algorithm, combined with the material properties, construction technology and maintenance requirements of the cement-stabilized gravel base layer; through the relationship model between moisture evaporation and environmental factors, based on the current environmental parameters and the evaporation rate of moisture on the base layer surface, the moisture loss of the base layer in the future period is predicted, and then the amount of spraying water and the spraying time required to maintain the appropriate humidity of the base layer are determined.

[0019] Maintenance decision and control: The controller controls the operation of the execution module according to the maintenance parameters calculated by the data processing unit. If the calculated result shows that the base layer humidity is lower than the set lower limit, the controller starts the spraying equipment and adjusts the water pump flow and the working pressure of the nozzle according to the calculated spraying water volume and spraying time to perform spray maintenance on the base layer. When the base layer humidity reaches the set upper limit, the controller stops the spraying equipment.

[0020] Real-time monitoring and adjustment: The monitoring module continuously monitors the base status and environmental parameters in real time. The data processing unit continuously adjusts the maintenance parameters based on the latest collected data, and timely adjusts the working status of the execution module through the controller; as the maintenance time goes by, the hydration reaction of the cement-stabilized gravel base gradually proceeds, and its demand for water and temperature will also change. The system dynamically adjusts the spraying time and spraying water volume according to real-time changes to ensure that the entire maintenance process is always in the best condition.

[0021] Beneficial effects of this application:

[0022] 1. Precision maintenance: By real-time monitoring of the temperature, humidity, water evaporation rate, and environmental parameters of the cement-stabilized gravel base, and using the data processing and control module to accurately calculate maintenance parameters, precise maintenance of the base layer is achieved, ensuring uniform strength development of the base layer, effectively reducing the occurrence of cracks and other defects, and extending the service life of the road.

[0023] 2. Improved maintenance efficiency: The system automatically adjusts maintenance strategies based on the substrate's condition and environmental changes, eliminating the need for frequent manual intervention. This significantly improves maintenance efficiency and reduces labor costs. Compared to traditional manual maintenance methods, maintenance efficiency can be increased several times or even dozens of times.

[0024] 3. Water conservation: Precisely controlling the amount of spray water based on the actual moisture needs of the base avoids the water waste caused by excessive spraying in traditional maintenance methods. Through a reasonable maintenance strategy, water conservation can be achieved by over 30%, meeting energy conservation and environmental protection requirements.

[0025] 4. Adapt to complex environments: It can adapt to different weather conditions and construction site environments. Whether it is hot weather, cold weather, or severe weather such as strong winds and heavy rains, it can provide suitable maintenance conditions for the cement-stabilized gravel base through corresponding control measures to ensure that the maintenance quality is not affected by environmental factors.

[0026] The aforementioned main solution of this application and its further options can be freely combined to form multiple solutions, all of which are solutions that can be adopted and protected by this application; and in this application, (non-conflicting options) can also be freely combined with each other and with other options. After understanding the solution of this application, those skilled in the art will understand that there are many combinations based on existing technology and common knowledge, all of which are technical solutions to be protected by this application, and they are not exhaustive here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the structural plan of this application.

[0028] Figure 2 It is a structural elevation view of this application.

[0029] In the figure: 1-monitoring point, 2-environmental monitor, 3-intelligent control module, 4-water tank, 5-water pump, 6-pipeline, 7-sprinkler, 8-maintenance range. DETAILED DESCRIPTION

[0030] The following non-limiting examples illustrate the present application.

[0031] Example 1

[0032] refer to Figure 1 and Figure 2 As shown, an intelligent maintenance system for cement-stabilized gravel base layer includes a monitoring module, an intelligent control module, maintenance equipment and covering materials to achieve precise and scientific maintenance.

[0033] The monitoring module includes temperature and humidity sensors, water evaporation sensors and environmental monitors. The temperature and humidity sensors and water evaporation sensors are both arranged at monitoring point 1.

[0034] Temperature and humidity sensors are evenly distributed at various depths on and within the cement-stabilized gravel base to monitor changes in temperature and humidity in real time. Layers of temperature and humidity sensors are placed on and below the base (at 0.05m, 0.25m, and 0.40m), with vertical spacing of 0.1-0.3m, horizontal spacing of 3.0-3.5m, and vertical spacing of 20-30m.

[0035] Water evaporation rate sensors are installed at intervals of 30-50m on the surface of the base layer to monitor the evaporation rate of water on the base layer in real time. An environmental monitor 2 is installed in the middle of the water-stable base construction section at the construction site to monitor environmental parameters such as atmospheric temperature, humidity, wind speed, and sunlight intensity.

[0036] The intelligent control module includes a data collector, a data processing unit and a controller. The monitoring templates are electrically connected to the data collector, the data collector is electrically connected to the data processing unit, the data processing unit is electrically connected to the controller, and the controller is electrically connected to the water pump of the maintenance equipment.

[0037] The data collector is electrically connected to the temperature and humidity sensors, water evaporation sensors, and environmental monitors, collecting data from these sensors in real time and transmitting it to the data processing unit. The data collector has high-speed data acquisition capabilities, enabling it to collect and initially organize all sensor data.

[0038] The data processing unit uses a high-performance processor to analyze and process the collected data. By establishing a mathematical model, it calculates the current maintenance parameters required for the base layer based on the temperature, humidity, water evaporation rate, and environmental parameters of the base layer. The maintenance parameters include spraying time and spraying water volume.

[0039] The controller controls the operation of the execution module according to the maintenance parameters calculated by the data processing unit, controls the start and stop of the spraying equipment, and adjusts the spraying flow and pressure of the spraying equipment.

[0040] The maintenance equipment includes a water tank 4, a water pump 5, a pipe 6 and a nozzle 7. The water tank is connected to the pipe, and the pipe is equipped with a water pump and a nozzle. The water tank is a finished water tank with a water storage capacity of not less than 20m 3 And to meet the needs of the site, the pipeline uses φ14-26mm (preferably φ20mm) plastic hose, the water pump uses a high-pressure water pump, and a group of self-rotating sprinklers are set every 5m-10m along the pipeline. The nozzle coverage diameter (i.e. maintenance range 8) is not less than 5m.

[0041] A water tank stores curing water, which is pumped through pipes to the nozzles, which evenly spray the water onto the surface of the cement-stabilized gravel base geotextile. The nozzles are specially designed to produce fan-shaped or circular sprays, achieving a uniformity of over 95%, ensuring a comprehensive and even coverage of the base surface.

[0042] The covering material is geotextile, which is applied to the surface of the base layer to reduce water evaporation and protect the base layer from damage by external factors. The covering device uses a reel, which can quickly complete the laying and recycling operations of the covering material.

[0043] Example 2

[0044] refer to Figure 1 and Figure 2 As shown, a cement-stabilized gravel base intelligent maintenance method adopts the cement-stabilized gravel base intelligent maintenance system of Example 1, and also includes maintenance steps of data collection, data analysis and processing, maintenance decision and control, and real-time monitoring and adjustment.

[0045] Data acquisition: After the system is started, the temperature and humidity sensors, moisture evaporation sensors and environmental monitors collect data on the temperature, humidity, moisture evaporation rate of the cement-stabilized gravel base, as well as the atmospheric temperature, humidity, wind speed and sunshine intensity, and transmit the data in real time to the data processing unit through the data collector.

[0046] Data Analysis and Processing: The data processing unit organizes and analyzes the received data. Based on pre-set mathematical models and algorithms, and taking into account the material properties, construction techniques, and maintenance requirements of the cement-stabilized gravel base, it calculates the current moisture loss and required maintenance parameters. Using a model that models the relationship between moisture evaporation and environmental factors, and based on current environmental parameters and the evaporation rate of the base surface, it predicts the expected moisture loss over a period of time. This in turn determines the spraying volume and duration required to maintain an appropriate moisture level.

[0047] Maintenance decision-making and control: The controller controls the execution module based on the maintenance parameters calculated by the data processing unit. If the calculated base moisture content falls below the set lower limit, the controller activates the spraying equipment and adjusts the water pump flow rate and nozzle operating pressure based on the calculated spray water volume and spray time to perform spray maintenance on the base. When the base moisture content reaches the set upper limit, the controller stops the spraying equipment.

[0048] Real-time monitoring and adjustment: The monitoring module continuously monitors the base status and environmental parameters in real time. The data processing unit continuously adjusts the maintenance parameters based on the latest collected data, and adjusts the working status of the execution module in a timely manner through the controller.

[0049] As the curing time goes by, the hydration reaction of the cement-stabilized gravel base gradually proceeds, and its demand for water and temperature will also change. The system dynamically adjusts the spraying time and spraying water volume based on real-time changes to ensure that the entire curing process is always in the best condition.

[0050] The aforementioned basic examples and their further selected examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed for protection in this application. In this application, each selected example can be arbitrarily combined with any other basic examples and selected examples.

[0051] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An intelligent maintenance system for cement-stabilized gravel base, including a monitoring module, characterized by: It also includes an intelligent control module, maintenance equipment and covering materials; the monitoring module includes a temperature and humidity sensor, a moisture evaporation sensor and an environmental monitor; the intelligent control module includes a data collector, a data processing unit and a controller, the monitoring templates are electrically connected to the data collector, the data collector is electrically connected to the data processing unit, the data processing unit is electrically connected to the controller, and the controller is electrically connected to the water pump of the maintenance equipment; the maintenance equipment includes a water tank, a water pump, a pipe and a nozzle, the water tank is connected to the pipe, and a water pump and a nozzle are provided on the pipe.

2. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 is characterized by: Several temperature and humidity sensors are evenly arranged at different depths on the surface and inside the cement-stabilized gravel base to monitor the temperature and humidity changes of the base in real time; several layers of temperature and humidity sensors are arranged on the surface of the base and downward, with vertical spacing of 0.1-0.3m, horizontal spacing of 3.0-3.5m, and longitudinal spacing of 20-30m.

3. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 or 2, characterized in that: Moisture evaporation rate sensors are installed at intervals of 30-50m on the surface of the base layer to monitor the evaporation rate of moisture on the surface of the base layer in real time.

4. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 is characterized by: An environmental monitor is installed in the middle of the water-stable base construction section at the construction site to monitor environmental parameters such as atmospheric temperature, humidity, wind speed, and sunshine intensity.

5. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 is characterized by: The data collector is electrically connected to the temperature and humidity sensors, water evaporation sensors and environmental monitors to collect data monitored by various sensors in real time and transmit the data to the data processing unit; the data collector has high-speed data collection capabilities and can complete the collection and preliminary organization of all sensor data.

6. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 or 5, characterized in that: The data processing unit uses a high-performance processor to analyze and process the collected data; by establishing a mathematical model, it calculates the maintenance parameters required for the current base layer based on the temperature, humidity, water evaporation rate and environmental parameters of the base layer. The maintenance parameters include spraying time and spraying water volume.

7. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 or 5, characterized in that: The controller controls the operation of the execution module according to the maintenance parameters calculated by the data processing unit, controls the start and stop of the spraying equipment, and adjusts the spraying flow and pressure of the spraying equipment.

8. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 is characterized by: The water storage capacity of the water tank is not less than 20m 3 The pipeline adopts φ14-26mm plastic hose, the water pump adopts high-pressure water pump, and a group of self-rotating nozzles are set every 5m-10m along the pipeline, and the nozzle coverage diameter is not less than 5m; the water tank is used to store maintenance water, and the water pump transports the water in the water tank to the nozzle through the pipeline. The nozzle sprays the water evenly on the surface of the cement-stabilized gravel base geotextile; the nozzle can achieve fan-shaped or circular spray, and the spray uniformity is more than 95%.

9. The intelligent maintenance system for cement-stabilized crushed stone base according to claim 1 is characterized by: The covering material is geotextile, which is covered on the surface of the base layer to reduce moisture evaporation and prevent the base layer from being damaged by external factors; the covering device uses a roll, which can quickly complete the laying and recycling operations of the covering material.

10. An intelligent maintenance method for cement-stabilized gravel base, characterized by: The intelligent maintenance system for cement-stabilized crushed stone base according to any one of claims 1 to 9 further comprises maintenance steps of data collection, data analysis and processing, maintenance decision-making and control, and real-time monitoring and adjustment; Data acquisition: After the system is started, the temperature and humidity sensors, water evaporation sensors and environmental monitors collect data on the temperature, humidity, water evaporation rate of the cement-stabilized gravel base, as well as the atmospheric temperature, humidity, wind speed and sunshine intensity, and transmit the data in real time to the data processing unit through the data collector; Data analysis and processing: The data processing unit organizes and analyzes the received data. Based on preset mathematical models and algorithms, and in combination with the material properties, construction technology, and maintenance requirements of the cement-stabilized gravel base, it calculates the current moisture loss of the base layer and the required maintenance parameters. Using a model that models the relationship between moisture evaporation and environmental factors, the unit predicts the amount of moisture loss in the base layer over a period of time based on current environmental parameters and the evaporation rate of moisture on the base layer surface. This in turn determines the amount of spray water and the duration required to maintain the base layer at an appropriate humidity. Maintenance decision and control: The controller controls the operation of the execution module according to the maintenance parameters calculated by the data processing unit; if the calculated result shows that the base layer humidity is lower than the set lower limit, the controller starts the spraying equipment, and adjusts the flow rate of the water pump and the working pressure of the nozzle according to the calculated spraying water volume and spraying time, and performs spray maintenance on the base layer; when the base layer humidity reaches the set upper limit, the controller stops the spraying equipment; real-time monitoring and adjustment: The monitoring module continuously monitors the base layer status and environmental parameters in real time, and the data processing unit continuously adjusts the maintenance parameters according to the latest collected data, and adjusts the working status of the execution module in time through the controller; as the maintenance time goes by, the hydration reaction of the cement-stabilized gravel base layer gradually proceeds, and its demand for water and temperature will also change. The system dynamically adjusts the spraying time and spraying water volume according to real-time changes to ensure that the entire maintenance process is always in the best state.

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