1, the development time of high-grade asphalt concrete pavement highway in China is not long, and the mechanization degree of asphalt pavement construction has just started. In order to achieve high-quality and rapid construction, the matching of asphalt concrete mixing equipment, asphalt mixture paving equipment, asphalt mixture transport vehicle and compaction machinery is the key. 2. The construction configuration of asphalt concrete pavement fleet is to complete a specific asphalt concrete pavement project, and form asphalt mixture on asphalt concrete pavement materials according to the construction technology of asphalt concrete pavement. In the construction and production of asphalt concrete, each single machine is organized by the system, forming an internally related unit and cluster construction system, forming a cluster construction system with reasonable scale and forming a cluster construction production capacity with reasonable scale. By configuring the construction layout, cluster variety composition and cluster performance of asphalt concrete pavement, the optimal resource allocation, optimal operation efficiency and optimal operation quality in the whole process of the project are realized. 3. Preliminary work: route selection → survey and design → land acquisition → alignment →
Construction stage:
1, procurement of road materials (including earthwork and cement)
2. Filling subgrade construction: from the pavement to the bottom of subgrade, the upper subgrade is 0-30cm, the lower subgrade is 30-80cm, the upper embankment is 80- 150cm, and the lower embankment is below 150cm. The subgrade is compacted by heavy vibratory roller in layers, and the subgrade filler is mainly slag.
Auxiliary processes include: subgrade and pavement drainage design and subgrade protection engineering.
3. Pavement construction: The pavement structure of the driving road is composed of medium-grained asphalt concrete (5cm thick), coarse-grained asphalt concrete (7cm thick), lower seal coat, cement stabilized macadam base (25cm thick) and graded macadam base (15cm thick) from top to bottom, which is paved in layers and evenly rolled in layers.
4, the edge of the road, slope cutting, the structure from top to bottom for the concrete shoulder hardening (thickness 10cm), clay, open graded gravel.
Later work: traffic engineering → completion and opening to traffic → operation management.