Rural old road reconstruction construction method

Abstract

The invention discloses a rural old road reconstruction construction method, and relates to the technical field of road construction, the rural old road reconstruction construction method comprises an old road section, and the method comprises the following steps: S1, digging a step-shaped first splicing groove and a step-shaped second splicing groove in the two sides of the old road section to form a new roadbed; s2, steel wire meshes are laid at the groove bottoms of the first splicing groove and the second splicing groove, and one sides of the steel wire meshes are inserted into the groove walls of the first splicing groove and the second splicing groove; s3, a retaining wall is poured on the side, away from the old road section, of the new roadbed through concrete; s4, laying 4% cement stabilized graded broken stones on the first splicing groove to form a subbase layer; s5, 5.5% cement stabilized graded broken stones are laid on the subbase layer and the groove bottom of the second splicing groove to form a base layer; s6, an anti-crack patch is attached to the joint of the base layer and the old road section, and asphalt concrete is laid on the old road section and the base layer to form a surface layer; and S7, paving asphalt mastic macadam on the surface layer to form a new pavement. New and old road sections can be more stable.

Description

technical field [0001] The present application relates to the technical field of road construction, and in particular, to a construction method for the reconstruction of old rural roads. Background technique [0002] Road reconstruction refers to the large-scale reconstruction of existing roads in order to improve their technical standards or technical grades according to the requirements of traffic development. Road reconstruction can be divided into total reconstruction and partial reconstruction. The former is basically abandoning the reconstruction of the original road, and the procedure is the same as that of the newly built road; [0003] The reconstruction of rural roads is particularly important in road reconstruction projects. Since most of the rural roads have been built for a long time, the width of the roads can no longer meet the normal use. Therefore, many rural roads need to be widened and reconstructed, and the widened roads can also meet the daily use. At ...

AI Technical Summary

Problems solved by technology

[0003] The reconstruction of rural roads is particularly important in road reconstruction projects. Since most rural roads have been built for a long time, the width of the roads can no longer meet normal use. Therefore, many rural roads need to be widened and reconstructed. The widened roads can also meet daily use. At present, when roads are widened, roadbeds are generally dug out on both sides of the road, concrete is laid on the roadbeds, and it is spliced ​​together with the old road surface. However, after a period of use, cracks are prone to appear between the widened road surface and the old road surface, resulting in new road surface Breaks between the old road surface and frequent maintenance of the road

Images