Full-width seamless integrally-formed asphalt paving method for old road extension

Abstract

The invention provides a full-width seamless integrally-formed asphalt paving method for old road extension. An anti-segregation paver is adopted to pave an old road and a new road at the same time toform a straight slope structure; in the asphalt paving process, the discharging amount of two spiral pavers is adjusted according to the paving thickness difference of an old road and a new road, themain vibration amplitude and the auxiliary vibration amplitude of the anti-segregation paver are adjusted to enable the transverse compactness to be uniform and consistent, and the full-width longitudinal-joint-free integrally-formed asphalt pavement is achieved. Compared with an existing process of paving by multiple pavers in parallel, the problems of different elevations of new and old pavements, different settlement of the old pavements and poor transverse and longitudinal flatness which are commonly seen in four-to-eight changes in highway reconstruction and extension projects are solved. The transverse straight slope and the longitudinal seamless reconstructed and expanded expressway are built in the true sense, the design initial intention of the cross section straight slope is achieved, and the paved road surface is smooth in drainage, comfortable in driving, safe, durable and capable of achieving resource utilization. Efficiency is high and quality is good.

Description

technical field [0001] The invention belongs to the technical field of road construction, and in particular relates to a full-width seamless integrated forming asphalt paving method for old road expansion. Background technique [0002] In the expressway reconstruction and expansion projects, all four-to-eight-to-eight reconstruction and expansion projects are designed with a straight slope structure. As the traditional paver segregates seriously with the increase in width, it is necessary to use multiple pavers to pave together. As a result, there are longitudinal seams, which cannot guarantee the realization of the slope. [0003] Due to the different elevations of the new and old roads, the settlement of the old roads is different, and the horizontal and vertical flatness is poor. The road surface is multi-slope, multi-camber, rainy water, and vehicles change lanes due to road paving. Contents of the invention [0004] The purpose of the present invention is to provide ...

AI Technical Summary

Problems solved by technology

[0002] In the expressway reconstruction and expansion projects, all four-to-eight-to-eight reconstruction and expansion projects are designed with a straight slope structure. As the traditional paver segregates seriously with the increase in width, it is necessary to use multiple pavers to pave together. As a result, there are longitudinal seams, which cannot guarantee the realization of the slope

[0003] Due to the different elevations of the new and old roads, the settlement of the old roads is different, the horizontal and vertical flatness is poor, and the parallel machine paving causes the road surface to have multiple cross slopes, multiple cambers, rainy water, and vehicles swaying when changing lanes.

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