Impact roller is a new construction machinery foundation compaction equipment, its tamping force, tamping capacity, compaction impact depth and high construction efficiency, received the majority of the construction team's welcome, in recent years more and more use. According to its construction characteristics, people summarize a series of impact roller construction technology or construction methods.
impact roller
Here, we through the domestic impact roller brand manufacturers under the impact roller leasing company for many years of production and construction experience, hand to give the road friends about the impact roller impact roller construction of the wrong wheel rolling method and the use of the wrong wheel rolling method need to pay attention to what matters.
Video and text of impact roller and hydraulic tamper
Sanlu impact roller (click the picture to see)
The wrong wheel rolling method is also known as the wrong cycle method, refers to the use of impact roller rolling construction, in order to avoid the compaction point is not uniform or leakage of pressure, the two impact roller rolling roller in the process of the wheel tracks staggered not overlapping. This is different from that the roller tracks should overlap 0.2~0.3m.
impact roller construction
The staggered roller rolling method is a reasonable and effective construction method of impact roller rolling, which is summarized by the impact roller leasing company affiliated to the brand manufacturer of impact roller by combining the product structure and construction technical characteristics of impact roller, as well as a large number of long-term construction applications.
outline diagram of impact roller
Reference trilateral form double impact roller contour drawing, we can see a single of impact roller impact rolling wheel width is 0.9 m, two-wheel outside the edge of the total width of 2.96 m, two rounds of gap width is 1.16 m, so, the problem comes, impact roller with the method of fault wheel rolling, not overlap between wheel track, transverse will each have 0.13 m gap failed to lap influence on compaction will there be?
schematic diagram of impact rolling principle
The answer, of course, is no. Impact roller impact rolling belt “ Ram & throughout; With a certain characteristic of 0.13m void surface, the strong tamping force and the huge impact force produce similar seismic waves with strong penetrating force to transmit and spread radiation to the deep layer under the foundation, and the compaction effect under the 0.13m void surface layer overlapped with each other. At the same time, when the impact roller vertically follows the rules of staggered peak rolling and increases the number of times, it will also supplement the compaction of other parts, which has been widely verified in engineering construction.
diagram of wrong wheel rolling method
Two wrong wheel runs of the impact roller are once, and the impact roller width is 4m. For the second impact rolling every time, the 0.9m-wide single wheel of impact rolling is passed through the center of the inner margin of the first two wheels, and the impact is transmitted radially to the theoretical gap of 0.13m at the lower base at a certain included Angle. That is, the first time to meet the gap all rolling.
impact rolling construction
The wrong roller rolling method is a basic rule to be followed in the construction of impact roller, but it is only a rule to be followed in the horizontal arrangement of impact roller construction. Impact roller impact roller construction in the longitudinal arrangement to follow the rules of staggered peak roller, we will introduce in the relevant article.
impact rolling construction
When the impact roller adopts the wrong cycle method for impact rolling construction, it can choose to take the center line of the road as the axis of symmetry to travel from one side to the other side, and follow the principle of rolling in the middle and then on both sides. At the same time, the position close to the side can appropriately increase the number of impact rolling and arrangement density, in order to strengthen the compaction effect.
