Subgrade excavation: according to the requirements of the plan, excavate the roadbed, pick up earthwork, and reach the planned elevation; check whether the longitudinal slope, transverse slope and sidelines meet the planning requirements;
Repair the roadbed, level the compaction and compaction, and the compaction coefficient will reach more than 95%, and pay attention to the buried pipelines.
Bottom layer laying: Laminated grading sandstone with a thickness of 150 to 180 mm (maximum particle size must not exceed 60 mm, minimum particle size must not exceed 0.5 mm) and leveled and compacted. More than ninety-five percent.
Laying of the screed layer: The screed layer is made of medium sand, 30 mm thick. The medium sand requires a certain gradation, and the grading sand with a particle size of 0.5 mm is leveled.
Surface layer laying: The surface layer is grass-planting bricks . When laying, the pavement bricks should be laid according to the planning image, and they should be laid flat and quiet with a rubber hammer, but the edges of the bricks must not be damaged. Then fill the brick holes with nutrient soil, and then plant grass and maintain grass. The quality requirements of Wanxin grass planting bricks are in compliance with the interlocking pavement pavement construction and inspection procedures CJJ79-98.