Six Tips for Mini Road Roller Double Drum Construction

Tip 1: The selection of compaction machinery should be light first and then heavy. The soil is soft at the beginning. If the tonnage of the road roller is too heavy, the soil will accumulate, the thickness will be uneven, and the compaction will not be guaranteed. Therefore, first use a light and small roller to compact the soil evenly. After the roadbed soil has strength, use a heavy roller to compact it to the required degree of compaction. If it is a vibratory roller, the first pass should be static pressure, and then from weak vibration to strong vibration.
Tip 2: The compaction speed should be slow at first and then fast. The rolling speed of small rollers should be gradually accelerated as the number of rolling passes increases, that is, rolling should be carried out at a lower speed during the initial rolling. This can extend the action time of the rolling force, increase the depth of influence, and accelerate soil deformation. Avoid the phenomenon of rolling wheel holding soil and prevent the small roller from getting trapped and other abnormal situations.
As the number of rolling passes increases, the density of the paving layer also increases rapidly. Speeding up the rolling speed will help improve the smoothness of the surface of the paving layer and improve the operating efficiency of the small roller.
Tip 3: Straight lines and large curves without superelevation should be driven from the edge first and then in the center. The small roller compacts the road from the outside of the roadbed, along the extension direction of the roadbed, and gradually toward the center line of the roadbed to form a road arch to facilitate drainage.
Tip 4: There are super-high small curved road sections, which should be rolled from the inside to the outside, from the low part of the roadbed to the high part of the roadbed, to form a one-way super-high cross slope.
Tip 5: The driving wheel of the small roller should be at the back when rolling on a slope. When going uphill, the rear driving wheels can withstand the driving force provided by the slope and the machine itself, while the front wheels initially compact the road surface to withstand the larger shear force generated by the driving wheels.
Tip six: When operating, the small roller should start first before starting to vibrate. When parking, it should first stop vibrating and then stop to avoid in-situ vibration.