41 results about "Pavement maintenance" patented technology

The utility model discloses a kind of highway pavement crack caulking tape machines, it is related to pavement maintenance technical field, main purpose is to improve the efficiency of highway caulking. The main technical scheme of the utility model is as follows: highway pavement crack caulking tape machine, it includes: frame body and driving part;The upper end of the frame body is fixedly connected to handle;The driving part includes winding belt wheel, compacting wheel and collection wheel, the winding belt wheel is rotatably connected to the middle part of the frame body, the compacting wheel is rotatably connected to the lower end of the frame body, the lower edge of the compacting wheel is lower than the lower end of the frame body, the collection wheel is rotatably arranged above the compacting wheel, for making caulking tape pass through the gap between the collection wheel and the compacting wheel, and sweep the lower edge of the compacting wheel, extend backward.

The present application relates to the technical field of asphalt, in particular to a high-viscosity ultra-thin overlay asphalt for road maintenance and a construction method thereof, the asphalt comprises the following raw materials in parts by weight: 55-60 parts of base asphalt, 8-11 parts of terpene resin, 7-10 parts of SBS elastomer, 4-7 parts of silicate cement, 5-8 parts of modified fiber agent, 4-7 parts of functional agent, 2-4 parts of silane agent, and 2-4 parts of aggregate; the ultra-thin overlay asphalt of the present application adopts base asphalt, terpene resin, SBS elastomer, silicate cement and aggregate, and is mixed with modified fiber agent and functional agent; through the coordination and mutual assistance of the raw materials, the crack resistance, bonding strength and compressive strength of the obtained ultra-thin overlay asphalt are improved in coordination, and the weather resistance and stability of the product are significantly improved.

1. Name of the product in this design: Graphical User Interface of the Operating System for Road Maintenance Vehicle Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design features of this product are the graphical user interface content of the electronic device. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: This graphical user interface is used for the operating system of the road maintenance vehicle, setting the vehicle's operating functions and modes, and displaying the vehicle's work information and dynamics. 6. Human-computer interaction method of graphical user interface: The main view is the main interface when the device is powered on. This interface displays the current operating status of the road maintenance vehicle. When the user triggers the "Settings" option icon in the main view, the interface switches to the vehicle parameter setting interface, as shown in Figure 1. When a user triggers the "IO Interface" option icon below the settings options in Interface Change State Figure 1, the interface switches to the initial page of the IO interface, as shown in Interface Change State Figure 2. Users can switch pages within this interface. For example, if a user triggers the "Next Page" option icon in Interface Change State Figure 2, the interface switches to Interface Change State Figure 3. A malfunction has occurred in the vehicle system on the current interface, and the red indicator light to the right of the corresponding option illuminates as a warning. Similarly, if a user triggers the "Motor & Drive" option icon in Interface Change State Figure 3, the interface switches to the initial page of the Motor & Drive interface, as shown in Interface Change State Figure 4. Users can switch pages within this interface. For example, if a user triggers the "Next Page" option icon in Interface Change State Figure 4, the interface switches to Interface Change State Figure 5. A malfunction has occurred in the vehicle's motor & drive on the current interface, and the red indicator light to the right of the corresponding option illuminates as a warning. In the interface, the area covered by a single color block is the content screen. The shape of the single color block is only used to cover the content screen and does not represent the shape of the content screen.

The present invention relates to the technical field of urban traffic management, and in particular to a pavement defect monitoring and prediction method and system. The method comprises the following steps: constructing a pavement digital twin model of a target pavement; constructing a historical pavement monitoring dataset, and acquiring pavement monitoring indicator precise data and pavement high-definition image data in real time; on the basis of the pavement digital twin model and the pavement monitoring dataset, using a dual-source weight fusion method to obtain an indicator weight of each pavement monitoring indicator; and on the basis of the pavement monitoring indicator precise data, the indicator weight, and the pavement high-definition image data, updating the pavement digital twin model to achieve real-time monitoring and prediction of a target pavement defect, and formulating a pavement maintenance strategy. The present invention is based on the pavement digital twin model, and takes into account the degree of influence of each pavement monitoring indicator on a pavement defect, achieving real-time, accurate, and efficient monitoring and prediction of the pavement defect, thereby formulating the pavement maintenance strategy in a timely manner to ensure the road traffic capacity and safety.

The application provides a kind of repair scheme generation method based on airport pavement damage grade evaluation, it is related to airport pavement maintenance technical field.The method comprises: collecting field damage data including damage type, geometric parameter, reinforcement state, base state, temporary plate state and area ratio;Damage data is input into multistage quantitative evaluation model, and the comprehensive damage grade of pavement slab is output;According to the grade, from the scheme library that stores partial thickness repair, full thickness repair, whole plate replacement and other repair measures, automatically match and output the structured repair scheme containing process parameters, material performance and equipment configuration.The application establishes the intelligent mapping of quantitative evaluation model and standard scheme library, solves the fundamental technical defects that traditional manual decision efficiency is low, standardization degree is poor, and experience leads to scheme consistency is difficult to guarantee, realizes the rapid, scientific and standardized generation of airport pavement repair scheme.

This utility model relates to a Venturi cyclone dust collector for road maintenance vehicles. It includes a Venturi cyclone dust collector body installed on the platform of the road maintenance vehicle. The Venturi cyclone dust collector body consists of an intake pipe, a Venturi tube, a cyclone dust collector, a dust collector fan, a chimney, and a water tank. A dust collector fan is installed at the upper end of the cyclone dust collector. One side of the dust collector fan is connected to one end of the intake pipe via the Venturi tube, and the other end of the intake pipe is welded to the outlet of the mixing pot. A chimney is installed at the outlet of the dust collector fan. The lower end of the cyclone dust collector is fixed to an opening on the upper surface of the water tank via a flange. The lower surface of the water tank is bolted to the platform in the middle of the road maintenance vehicle. A water spray pipe is installed on the side of the water tank. This utility model has the advantages of simple and reasonable structure, stable operation, and high-efficiency dust removal.

This application discloses a crack repair and flattening device for highway maintenance, belonging to the field of road surface maintenance. The flattening device includes a support frame and a filler column body mounted on the support frame. Tires are rotatably mounted on both sides of the bottom of the support frame. A guiding mechanism is provided on the support frame, including a frame plate fixedly connected to the bottom of the support frame and a fixing plate fixedly mounted on the frame plate. A guide plate, triangular in shape, is inclined at the bottom of the fixing plate for insertion into the crack opening. By setting up the guiding mechanism, with the guide plate being triangular, its pointed end is inserted into the crack. When the support frame is pushed to move the device, the discharge end of the filler column body always corresponds to the crack, effectively preventing filler displacement and accurately filling the crack, greatly improving filling efficiency. Simultaneously, the bottom end of the frame plate abuts against the ground, allowing for timely scraping away of excess filler from the outside of the crack, ensuring that the repaired filler surface is flush with the road surface.

The present application relates to the highway construction maintenance equipment with warning function, the present application effectively solves the problem that the effect of protecting the road surface layer of the road section to be maintained cannot be improved due to the passing vehicles when the road surface is maintained, and the problem that manual watering maintenance is needed during the maintenance process, the solution to the problem includes a bearing plate, a sliding frame, a roller, a damping assembly, a driving assembly, a water spraying assembly and the like, the device can adjust the warning mode for the passing vehicles according to the different conditions of day and night, at the same time, the watering maintenance of the concrete road surface layer of the maintenance road section can be automatically realized, on the other hand, the out-of-control vehicles about to intrude into the road maintenance area can be intercepted, so that the damage of the out-of-control vehicles to the road surface layer in the maintenance stage caused by rolling is avoided, and strong protection is provided for the safe and smooth progress of the road maintenance process.

1. Name of the design product: road cutting machine (roll). 2. Use of the design product: a mechanical device for cutting road maintenance. 3. Design points of the design product: in shape. 4. Picture or photo that best shows the design points: perspective view. 5. The bottom surface of the design product is not easily visible or not visible during use, and the top view is omitted.

The utility model discloses an anti-skid wear material spreader for pavement maintenance, which relates to the technical field of pavement maintenance and comprises a transport vehicle, the top of the transport vehicle is rotatably connected with a carriage through a hinge, the bottom of the carriage is fixedly connected with a spreading pipe on one side of the transport vehicle, and the outer side of the spreading pipe is sleeved with a discharge pipe. The discharging pipe is rotationally connected with the spreading pipe, two adjusting plates are rotationally connected into the discharging pipe, and an adjuster is installed on one side of the discharging pipe. Compared with the prior art, the anti-skid wear material spreader for pavement maintenance has the beneficial effects that the rotary discharge pipe sleeved outside the spreading pipe is matched with the connection of one end of the adjusting rod on the turntable and the discharge pipe, so that the adjusting rod can drive the discharge pipe to swing repeatedly along with the rotation of the turntable, the discharge of materials is accelerated, the blockage is prevented, and the service life of the spreading pipe is prolonged. And the adjusting plate in the discharging pipe rotates under the action of the worm gear set and the worm set, so that the angle of the adjusting plate and the distance between one end of the adjusting plate are conveniently adjusted, and the discharging range is controlled.

This invention discloses a noise-reducing asphalt pavement maintenance decision-making method based on acoustic characteristic attenuation prediction, comprising: acquiring non-destructive testing signals of the porous asphalt pavement under test, including ultrasonic reflection signals; extracting acoustic feature indices for hierarchical screening, and performing inversion using a pre-constructed equivalent fluid physics model to obtain current microscopic acoustic parameters; calculating the acoustic safety margin of the pavement under test using an environmental acoustic model; acquiring historical microscopic acoustic parameter sequences, and performing feature direction decomposition with current parameters to deduce multi-dimensional independent evolution trends; and obtaining pavement maintenance decisions based on independent evolution trends and acoustic safety margins. This invention, through the combination of non-destructive testing and physical model inversion, can distinguish between the attenuation mechanisms of blockage and aging, supporting the shift from periodic maintenance to maintenance decisions oriented towards achieving acoustic environmental standards.

The application provides an AI-driven long-term monitoring and analysis system for pavement maintenance technology, relates to the field of pavement maintenance monitoring, and comprises a multi-source perception monitoring terminal deployed at a key road location, an edge computing processing module, an AI intelligent analysis platform, an early warning pushing module and a maintenance management terminal. The multi-source perception monitoring terminal collects pavement crack images, environmental parameters and road load data in real time. The edge computing processing module pre-processes and preliminarily analyzes the collected data. The AI intelligent analysis platform accurately identifies and grades pavement cracks based on a deep learning algorithm, and constructs a crack development trend prediction model in combination with historical data and real-time data. The early warning pushing module pushes early warning information and maintenance suggestions to the maintenance management terminal. The maintenance management terminal receives early warning information, checks monitoring data and trend analysis results, and overall arranges maintenance work. The application improves the monitoring efficiency and accuracy of pavement cracks, realizes early detection, early monitoring and early repair, and reduces maintenance costs.

This invention provides a method and system for merging multi-target recognition results from three-dimensional ground-penetrating radar (GPR), belonging to the field of road engineering pavement maintenance technology. The invention first constructs a GPR dataset containing two categories of labels: "bridge" and "structural layer," and trains a YOLOv8n model to recognize targets. Then, it uses non-maximum suppression to merge redundant detection boxes from each map. Next, it determines layer stability based on multi-channel consistency: candidate layer locations are extracted according to a preset depth sampling point range, sorted, and assigned layer order categories. Layers with categories shared by at least two channels at the same location are identified as stable layers. The best channel is then selected through scoring. Finally, based on the detection results of the best channel, pavement structure detection boxes overlapping with bridges in the road number interval are modified to bridges and deleted, thus filtering bridge interference. This invention effectively fuses multi-channel recognition results, reduces false detection rate, and improves the reliability of layer recognition.

This invention belongs to the field of road maintenance technology and discloses an equipment, control method, and solid content detection method for emulsified asphalt. By setting up multiple soap solution tanks to prepare soap solution alternately, it can meet the requirements of continuous emulsified asphalt production. Soap solution and base asphalt are pumped into the mill by soap solution pump and asphalt pump, respectively. Temperature sensors are set at the discharge end of the soap solution pump, asphalt pump, and mill. The solid content of emulsified asphalt can be calculated by the pump flow rate. The solid content of emulsified asphalt is calculated by measuring the temperature of soap solution and base asphalt before entering the mill and the temperature of finished emulsified asphalt discharged from the mill using the temperature balance detection method. By using a weighted average method to process the solid content detected by the two methods, the accuracy of the solid content of emulsified asphalt detected during continuous production is improved. This facilitates dynamic adjustment of soap solution and base asphalt, improves the quality of finished emulsified asphalt, and thus ensures the quality of engineering construction.

This invention relates to the field of road maintenance technology, specifically to an intelligent decision-making method and system for preventive maintenance of asphalt pavements, solving the technical problem of low efficiency in existing road maintenance technologies. The method includes: collecting pavement state data of the current pavement to be maintained, and acquiring pavement state data of multiple historical pavement samples at various historical time points; the pavement state data includes measured values ​​of various pavement state indicators; based on the pavement state data of the current pavement to be maintained and the pavement state data of multiple historical pavement samples at various historical time points, predicting the subsequent maintenance needs of the current pavement to be maintained, and determining the maintenance weight of the current pavement to be maintained at each subsequent future time point; the maintenance weight is used to characterize the degree of need for preventive maintenance of the current pavement to be maintained at the corresponding future time point; and determining the expected maintenance time point of the current pavement to be maintained based on the maintenance weight of the current pavement to be maintained at each subsequent future time point.

The present application relates to the field of asphalt concrete material, especially a kind of targeted anti-aging modified asphalt concrete and preparation method thereof.A kind of targeted anti-aging modified asphalt concrete is made from the following weight parts of raw materials: 8-12 parts of non-ionic emulsified asphalt, 15-25 parts of sandstone, 45-75 parts of gravel, 3-6 parts of mineral powder, 0.5-1.0 parts of ZnO@PAN fiber filler, 30-50 parts of rubber powder, 0.20-0.5 parts of anti-aging composition.The asphalt concrete prepared by the present application has excellent anti-aging property, impact toughness, permeability resistance and freeze resistance, effectively prolongs the pavement maintenance cycle and reduces the pavement maintenance cost.

The rolled thin asphalt patch is a cost-effective solution for pavement maintenance in roads, walkways, and open spaces. Designed for emergency restoration, it is pre-fabricated for all-season and all-climate use. The patch comprises two main layers: a top asphalt-aggregate mixture and a bottom adhesive bitumen layer, both supported by a non-stick release liner. Manufactured under controlled conditions, it ensures consistent quality and easy installation without specialized tools. Key advantages include long service life, resistance to environmental degradation, surface texture restoration, and reduced maintenance costs. It enables immediate patching in conditions where traditional treatments are impractical. Applications include repairing bituminous, sealing joints, utility covers, drainage structures, and bridge shoulders. The invention supports all pre-fabricated protective and hot / cold asphalt overlays and is compatible with various materials such as quarry and riverbed aggregates, slag, pumice, and different bitumen types (pure, modified, cutback, emulsion), with paper or plastic based release liners.

This utility model discloses an intelligent road maintenance device, including an unmanned vehicle, a crack imaging structure, a sweeping structure, and a blowing structure. The crack imaging structure is mounted on the top of the unmanned vehicle and aligned with the road surface; the sweeping structure is mounted on the front of the unmanned vehicle via a mounting bracket; and the blowing structure is mounted on the sweeping structure. This utility model's crack imaging structure provides more comprehensive recording of cracks on the road surface, and the unmanned vehicle can clean debris from the cracks, preventing obstruction of the captured image and ensuring accurate analysis and recording.

The application relates to the technical field of information retrieval, and discloses a road surface maintenance recommendation method and system based on semantic retrieval and a storage medium, the method comprising the following steps: acquiring road condition data of a to-be-recommended road section. Semantic representation and index representation are generated. A semantic index based on the semantic representation and an index index based on the index representation are established. First candidate cases are recalled in the semantic index, and second candidate cases are recalled in the index index, and a candidate set is obtained after merging. Text semantic similarity and index consistency similarity are calculated, and engineering constraints are constructed. The candidate set is constrained and reordered according to the text semantic similarity, the index consistency similarity and the engineering constraints, and target cases in the front of the order are selected. Based on a maintenance work method, parameters of the maintenance work method are adjusted in combination with a structured detection index, a recommended maintenance scheme is formed, and the recommended maintenance scheme is output. The application reduces false recommendations of text similarity but engineering non-migration, and improves the accuracy of the recommended scheme.

The application provides a pavement maintenance decision method and device adapting to environmental changes, equipment and medium, which obtains multi-source heterogeneous dynamic environment perception data of a target road network, performs feature fusion, and generates a fusion feature dataset; inputs a pavement degradation dynamic prediction model, and outputs pavement performance index prediction values of each road section in the target road network at multiple time scales in the future and corresponding prediction uncertainty intervals; inputs the prediction values, the prediction uncertainty intervals, real-time environmental change information, and a preset maintenance target function and constraint condition into an optimized adaptive multi-objective optimization decision model, dynamically generates a maintenance strategy; the optimized adaptive multi-objective optimization decision model is based on the execution of the maintenance strategy, collects pavement condition data after maintenance is completed to evaluate the maintenance effect; the maintenance effect is obtained as a feedback signal for optimization, realizes real-time response and continuous optimization of the maintenance strategy to environmental changes, improves maintenance efficiency, reduces cost, and prolongs pavement life.

The application discloses a kind of existing asphalt pavement damage model construction methods based on damage density, specifically related to the numerical simulation technical field of asphalt pavement structure damage assessment, for solving the problem that existing method is difficult to accurately, efficiently quantitatively evaluate and predict the internal damage state of asphalt pavement structure in service;Method by obtaining pavement material and geometric parameters and deflection data, a finite element numerical simulation model is established, the dynamic response under different damage states is simulated, and the phase space reconstruction is used to extract the attractor structure characteristics of dynamic system, and then the continuous evolution geometric constraint path of damage density in phase space is constructed, and finally the damage density of surface layer and base layer is calculated based on the path constraint combined with deflection data by optimization inversion algorithm, according to which the internal damage state of pavement is determined, realizes the quantitative evaluation of mechanism and data fusion of internal damage of asphalt pavement structure, and provides accurate basis for pavement maintenance decision.

This utility model relates to the field of concrete pavement maintenance technology, specifically to a concrete maintenance device for highways in cold and arid regions. It includes a mobile support assembly, on which a maintenance component is mounted. The maintenance component includes a mounting base, on which a power component for providing power is mounted, a leveling component for leveling the concrete surface is mounted, a spraying component for sprinkling water is mounted, a water-absorbing component for absorbing excess water is mounted, and a spraying component for applying a coating is mounted. This utility model, through the cooperation of the maintenance component and the mobile support assembly, achieves efficient concrete pavement maintenance and recovers maintenance resources during maintenance, greatly reducing losses during maintenance. Through the maintenance of concrete, it significantly extends the service life of the concrete and prevents pavement cracking.

The utility model discloses a mobile sanding device for bituminous pavement maintenance relates to bituminous pavement maintenance technical field, including sanding cylinder, sanding cylinder upper end is equipped with sand adding mouth, sanding cylinder lower extreme is equipped with sand outlet, be equipped with sand outlet subassembly in sanding cylinder, sanding cylinder one side is equipped with folding type stabilizing component, sanding cylinder and folding type stabilizing component opposite side is equipped with cleaning component. The utility model discloses through setting folding type stabilizing component, utilizes the cooperation between fixed base, movable rod, second gyro wheel, electric telescopic link and first gyro wheel, realizes the self -stabilization of whole device, solved the original device lower extreme only is equipped with two gyro wheels, makes device unable self -stabilization, and the problem that inconveniently adds sand operation is solved, and through electric telescopic link can control movable rod and second gyro wheel fold, guarantees the flexibility of device.

The utility model discloses a road bridge pavement maintenance device, including the car body, one end is provided with the cleaning assembly, and the other end is provided with the waste box, the dust fall component carries out the dust fall processing to the sundries of cleaning, the maintenance device is convenient for the sundries on the road bridge pavement to carry out the quick cleaning, and effectively avoids the dust production in the cleaning process, guarantees the working environment of maintenance personnel.

This application relates to the field of highway pavement inspection technology, and in particular to a smart highway pavement damage and water accumulation integrated detection method and system. The method includes: acquiring a pavement condition information set; based on the pavement condition information set, analyzing the coupling and temporal relationship between the vulnerable surrounding areas of expansion joints and the water accumulation distribution characteristics in detection and identification, to obtain an expansion joint anomaly information set; acquiring a traffic environment information set; based on the traffic environment information set, combined with the expansion joint anomaly information set, analyzing the correlation between damage formation, water accumulation induction, and external factors, to obtain a damage-causing information set; and based on the damage-causing information set, conducting pavement health status assessment and risk classification analysis, generating and outputting a highway pavement damage and water accumulation integrated detection log. This improves the intelligence and precision of pavement maintenance, ensures highway traffic safety and efficiency, and extends pavement service life.

This invention discloses a device and method for monitoring cracks in new and old road surfaces. The device includes a first reinforcing bar, a hollow sleeve, and a second reinforcing bar arranged coaxially. The first reinforcing bar is connected to one end of the hollow sleeve in the form of a piston, and the other end of the hollow sleeve is connected to the second reinforcing bar via a rotating shaft. A laser displacement sensor is installed at the end of the first reinforcing bar, and a liquid sensing device is installed inside the hollow sleeve. By processing the data collected by the laser displacement sensor and the liquid sensing device, crack information is obtained for real-time monitoring of cracks. This invention can be directly buried in the new and old roadbeds to monitor the new and old road surfaces in real time, thereby accurately obtaining road surface crack information and automatically providing crack monitoring information for road maintenance. This allows road surface cracks to be repaired effectively in the early stages, extending the service life of the road surface and ensuring the comfort and safety of road use.

This application relates to the field of pavement maintenance technology, and in particular to a method for evaluating road fatigue performance based on dynamic modulus. The method includes: constructing a correlation curve representing the mapping relationship between the dynamic modulus, which characterizes pavement rigidity, and the fatigue life of the pavement; setting a critical fatigue life threshold for judging fatigue performance; determining the ultimate modulus boundary in the correlation curve based on the critical fatigue life threshold; obtaining core samples of the in-service pavement; measuring the measured dynamic modulus at a preset evaluation frequency; and judging the pavement condition based on the positional relationship between the measured dynamic modulus and the ultimate modulus boundary. This application improves the timeliness of fatigue performance evaluation of recycled asphalt mixtures.