Construction method and leveling device for road widening transition section

Abstract

The application relates to a road widening transition section construction method and leveling device, belonging to the technical field of road widening construction, including: cleaning and leveling and rolling the base of the original roadbed; backfilling the base after leveling and rolling with a predetermined thickness Plain soil; open steps on the side slope of the original roadbed, and roll and level the step surface; spread concrete on the step surface at the widened joint, and then use the leveling device on the slipform paver to synchronize the concrete Rolling and leveling; open the slip-form synchronous paver to spread the mixture on the widened road surface layer, and roll and level the mixture on the widened road surface layer until the top surface of the widened road surface layer and the concrete top surface on the step surface The height is consistent, and then the concrete layer and the widened road surface layer are jointly statically pressed; the geotextile is laid on the constructed concrete layer and the widened road surface layer. It can effectively reduce the quality hidden danger of poor road drainage and improve the construction quality of road widening.

Description

technical field [0001] The application relates to the technical field of road widening construction, in particular to a construction method and a leveling device for a road widening transition section. Background technique [0002] With the improvement of traffic demand and the increase of highway service age, many roads can no longer meet the development needs of the current society, and more and more roads urgently need to be rectified and expanded, such as splicing and widening the existing narrow roadbed and pavement. [0003] At present, in the traditional construction process of widening the roadbed and pavement, the new and old bases of the general roadbed and pavement are not easy to compact and form, and they tend to become weak parts. After a period of subsequent use, the newly widened roadbed and pavement often appear at the joints Collapse and hollowing out may easily cause drainage hazards in the pavement structure layer, which urgently needs to be improved. C...

AI Technical Summary

Problems solved by technology

[0003] At present, in the traditional construction process of widening the roadbed and pavement, the new and old bases of the general roadbed and pavement are not easy to compact and form, and they tend to become weak parts. After a period of subsequent use, the newly widened roadbed and pavement often appear at the joints Collapse and hollowing out may easily cause drainage hazards in the pavement structure layer, which urgently needs to be improved

Images