Road roller slip form rolling technology

Abstract

The invention relates to a road roller slip form rolling technology. The road roller slip form rolling technology comprises the following steps that (1) a rubble layer basic layer is stabilized through cement, specifically, step one, a slip form rolling device is installed on a primary rolling YZ-22 single-steel-wheel vibratory road roller, and step two, primary rolling is conducted through a DYNAPAC CC522 dual-steel-wheel vibratory road roller provided with the slip form rolling device, primary rolling is conducted for two times, from a starting point, one time of advancing and one time of retreating are regarded as a cycle, 1 / 2 of the wheel width of an area compacted in the previous cycle is overlapped by the vibratory road roller in the next cycle till an initial rolling point of a second road roller is overlapped, and rolling for a time is completed; and (2) the rubble layer basic layer is stabilized through the cement, specifically, step one, the slip form rolling device is installed on the primary rolling DYNAPAC CC522 dual-steel-wheel vibratory road roller, and step two, primary rolling is conducted through the DYNAPAC CC522 dual-steel-wheel vibratory road roller provided with the slip form rolling device for two times. In short, the road roller slip form rolling technology has the advantages that raw materials are saved, cost is reduced, and construction is facilitated.

Description

technical field [0001] The invention belongs to the technical field of road construction, and in particular relates to a sliding form rolling process of a road roller. Background technique [0002] During the construction of expressway reconstruction and expansion pavement, since the cement-stabilized macadam base or asphalt surface layer has a loose paving coefficient, the uncompacted pavement after the mixture is paved is higher than the steps (such as Figure 4 As shown), due to the limitation of the position of the formwork, the formwork cannot be supported, and the sideways movement of the mixture during rolling will cause material loss at the overlap between the new road and the old road, and the joint between the new road and the old road cannot be compacted, and the cement When the stable crushed stone base or asphalt surface is paved normally, the formwork should be supported at the edge to prevent the mixture from slumping; if the formwork is not supported, super-wi...

AI Technical Summary

Problems solved by technology

However, if the formwork is to be supported at the edge, the cost of the formwork will be increased, and a large amount of manpower will be used to support the formwork, and the construction cost will also increase.

Due to the existence of the loose laying coefficient of the mixture, if the formwork is consistent with the thickness to be paved, the edges will not be compacted; if the formwork is consistent with the compacted thickness, the existence of the virtual paving height will cause the mixture to slump and affect the compaction quality

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