In the construction of highway, municipal road, rural road network and base maintenance engineering, gravel paving is the core process of road base and cushion construction, which directly determines road flatness, compaction and overall service life. The traditional construction mode of manual spreading and loader paving generally has pain points such as uneven distribution, large thickness deviation, low construction efficiency and high labor cost, which is difficult to meet the standardized, efficient and refined construction requirements of modern road engineering. As a special intelligent equipment for road construction, the gravel spreader has become a standard equipment in road construction projects by virtue of its core advantages of precision, high efficiency, energy saving and high quality. It is widely used in various scenarios such as gravel paving for new road construction, gravel reinforcement for old road renovation, gravel filling for road maintenance, etc., which greatly promotes the upgrading and iteration of road construction technology.
I. Uniform and controllable paving, greatly improving road construction quality
Smoothness and compactness of road base are the key to ensure road bearing capacity and avoid road cracking, settlement and pit disease in later period. Traditional manual paving and simple mechanical paving methods completely depend on the experience of operators, which is easy to cause problems such as local stacking, lack of materials and uneven thickness. After subsequent compaction, uneven compaction of base layer will occur, resulting in uneven stress on pavement and shortening the service life of road.
Crushed stone spreader adopts quantitative uniform distribution system, which can accurately adjust the spreading thickness, width and discharge speed according to the construction design requirements, so as to realize uniform, continuous and stable spreading of crushed stone materials throughout the whole process. The equipment can perfectly adapt to graded crushed stone, water-stabilized crushed stone, aggregate and other materials, effectively avoid the problem of material segregation, and ensure the uniform thickness of the entire road base and uniform distribution of aggregates. The standardized paving effect makes the subsequent compaction operation more uniform, greatly improves the integrity and stability of the road base, reduces the incidence of road diseases from the source, and significantly improves the construction quality of road engineering.
II. Doubling construction efficiency and shortening project construction cycle
Road engineering construction pays attention to continuity and timeliness, especially large-area road network construction and municipal engineering with tight construction period. Construction efficiency directly affects the landing progress of the project. Traditional manual paving mode requires a large number of manual cooperation with loader feeding and manual leveling, complicated procedures, slow speed, limited construction area in a single day, and manual operation is easily affected by weather and personnel status, and the construction progress is uncontrollable.
Stone spreader is an integrated automatic construction equipment, which integrates feeding, distributing and paving. It can be connected to dump trucks for continuous loading without stopping halfway. The whole process is mechanized without a lot of manual assistance. Compared with traditional construction methods, the construction efficiency of equipment can be improved by 3-5 times, and large-area road gravel paving can be completed quickly. At the same time, the equipment can adapt to the assembly line construction mode, effectively cooperate with road rollers and pavers, form a complete construction closed loop, effectively compress the overall project duration, assist the project to be completed on schedule and ahead of schedule, and create greater construction period advantages for construction enterprises.
Third, reduce construction costs and improve enterprise economic benefits
In the traditional gravel paving construction, enterprises need to invest a lot of equipment resources such as labor and loaders, labor salary, equipment fuel, operation and maintenance costs remain high, and the loss rate of manual paving materials is high, and it is easy to cause material waste, further increasing construction costs. In addition, the quality of manual construction is uneven, and rework is easy to occur, which increases the cost of manpower, materials and time.
The crushed stone spreader realizes mechanized and intelligent operation, and a single equipment can replace multiple construction personnel, greatly reducing manual investment and saving a lot of labor costs. At the same time, accurate quantitative distribution system can effectively control the amount of materials, reduce the accumulation of gravel, waste, material utilization rate greatly improved. Low equipment failure rate, simple operation and maintenance, strong continuous operation ability, avoiding rework loss. In terms of long-term construction, it can effectively reduce the comprehensive construction cost of the project and significantly improve the profit space and project cost performance of the construction enterprise.
IV. Wide range of adaptation scenarios and strong flexibility in construction
Modern road engineering scenarios are complex and diverse, covering different specifications of pavements such as expressways, urban and rural trunk roads, rural roads, municipal sidewalks, park roads, etc., as well as various construction scenarios such as new road construction, old road renovation, pavement maintenance, disease repair, etc., which require extremely high adaptability of paving equipment.
The gravel spreader has strong scene adaptation ability, which can flexibly adjust the paving width and thickness. It can not only meet the large-scale paving operation of large-area trunk roads, but also adapt to the fine construction of complex areas such as narrow roads, curves and corners, without construction dead corners. Whether it is the base laying of new roads, or the gravel backfilling after the old pavement is broken, local disease repair, the equipment can be efficiently adapted. At the same time, the equipment body design is flexible, the transition is convenient, it can adapt to the construction requirements of different road conditions and different sites, one machine has multiple uses, and the practicability is extremely strong, which perfectly adapts to various road engineering construction scenarios.
V. Standardized operation to assist engineering compliance acceptance
Nowadays, the acceptance standards for road engineering are becoming stricter and stricter, and there are clear specifications for indicators such as flatness, thickness deviation and compactness of the base layer. The randomness of traditional manual construction is large, the construction parameters are difficult to unify, the indexes are easy to deviate, it is difficult to meet the standardized acceptance requirements, and the project acceptance risk is increased.
The gravel spreader adopts standardized mechanical operation. The paving thickness, width and speed can be quantitatively adjusted and accurately controlled. The construction parameters are stable and unified, which can fully comply with the road engineering construction specifications and ensure that the construction indicators of each section of pavement meet the standards. Standardized construction effect effectively avoids problems such as unqualified acceptance, rectification and rework, greatly improves the one-time acceptance rate of the project, assists construction enterprises to create standardized and high-quality road projects, and establishes good engineering reputation.
In summary
The gravel spreader has completely reformed the traditional gravel paving construction mode by virtue of its multiple core advantages such as excellent paving quality, high construction efficiency, low comprehensive cost, wide adaptation scenarios and standardized construction, and solved many pain points of manual construction. At present, with the high-quality development of infrastructure projects, gravel spreader has become the core equipment of road construction and maintenance projects, which not only effectively improves the standardization and mechanization level of road construction, but also helps construction enterprises to improve quality and efficiency, reduce cost and increase income, and provides solid equipment support for the high-quality development of road traffic infrastructure construction.
