When working on asphalt pavement, a XCMG Small Road Roller should start rolling from a low place, and then roll to a high place. Everyone thinks about what would happen if the rolling from high to low. First, the soil will be driven to the place where the subgrade is low, which will lead to the elevation of the subgrade that should be low, resulting in the wrong cross slope. Secondly, it will cause the newly rolled high roadbed to crack, which requires everyone to think about the scene. Thirdly, if the slope is large, it will cause the small roller to slip laterally in a small distance, which is unfavorable for construction. Precaution:
1. First light and then heavy. At first, the soil was soft and the roller was too heavy, resulting in accumulation of soil, uneven thickness, and no guarantee of compaction. Therefore, first light the road roller to compact the soil evenly, and after the subgrade soil has a certain strength, roll it with a heavy road roller to the required degree of compaction.
2. First the two sides, then the middle, first the inner side and then the outer side. First on both sides and then in the middle This is for straight sections, the cross slope is set to be high in the middle and low on both sides, first low and then high. Inside first, then outside This is for the super high road section of the curve, the inside is low and the outside is high, first low and then high.
