For the rolling of small rollers, you need to pay attention to the following aspects:
1. Do not over-crush. Excessive rolling will cause the permeability of the loose layer to decrease, and will also damage the strength and smoothness of the base layer. Therefore, the rolling force should be uniform and moderate, and the thickness formed after rolling (i.e., the depth of rolling molding) should not be greater than 1/3 of the thickness of the loose layer.
2. Choose the appropriate rolling method. There are generally two methods for rolling with small rollers: forward rolling and rear rolling. Forward rolling is rolling in front of the machine, and is suitable for areas with high requirements for compaction and greater friction, such as fill soil tables, peat soil, acidic soil, etc. where the base thickness is less than 5cm. Rear rolling is rolling behind the machine and is suitable for areas with smaller resistance and greater friction during compaction, such as backfill soil and sandy foundation surfaces where the base thickness is greater than 10cm.
3. Pay attention to the rolling sequence. Generally speaking, it is necessary to compact from the side far away from the center line of the road toward the center line of the road to ensure that the foundation is compacted. Then re-tamp the areas with deep ruts and roll the entire surface.
In addition, small rollers also need to pay attention to the following aspects:
1. The driver should be familiar with the vehicle, master the operating skills, try to keep the roller in a stable state, and ensure that the driving direction meets the requirements.
2. Strictly abide by safe operating specifications, follow relevant operating procedures, conduct timely inspection and maintenance of the machine, maintain the ambition of the road roller, and discover and solve problems in a timely manner.
3. Pay attention to the rolling effect at any time. When compacted by a small roller, it will have a certain impact on the thickness, thickness uniformity and overall uniformity of the loose layer. Therefore, we should pay attention to the difference between the expected results and the achieved results, and make timely adjustments.
