Different rolling speed requirements are selected according to different construction conditions; whether it is a vibratory roller or an impact roller, the rolling speed has a significant impact on the density that can be achieved by the base material or pavement material layer. The impact rolling speed of impact rollers is controlled within the range of 10~15km/h, but it does not mean that as long as the rolling speed reaches this range, it is sufficient.
When the width of the roadbed at the construction site is greater than 24 meters, the "paperclip loop" construction route can be used; the number of impact rolling passes for the impact roller is 20 to 40 for moderately collapsible loess foundations. Specifically, the number of stamping passes determined in the test section is The number is the control standard. Under normal circumstances, as the number of impact rolling passes increases for the same roadbed, the compaction degree of the roadbed will also increase. Sufficient impact rolling passes guarantee the compaction effect.
Matching is the design key point and technical core of special tractors for impact rollers. For example, the special gearbox used in impact rollers has undergone 7 design changes, and the speed ratio alone has been optimized and improved 5 times. It does not mean that a certain gearbox has a good reputation on a certain product and can be directly equipped with an impact roller.
