Method for repairing pavement by reinforcing roadbed through grouting

Abstract

The invention discloses a method for repairing a pavement by reinforcing a roadbed through grouting. The method comprises the following steps that the grouting position is determined; drilling is carried out according to the designed vacancy; slurry pouring is carried out; hole finishing is carried out; transferring to a next hole site for construction is carried out, wherein an interlaced jump grouting method is adopted for construction in order to avoid influences on peripheral existing hole sites; after grouting construction is finished, curing is conducted for 5 days, and then qualification detection is conducted; after the roadbed reinforced through grouting is detected to be qualified, C20 plain concrete with the thickness of 30 cm is poured into a C20 road groove; after the C20 plain concrete is cured to reach the strength of 70% or above, an emulsified asphalt viscous oil layer is spread; asphalt concrete is paved; a rubber asphalt stress absorption layer is paved; and after aqualified treatment area and other areas which do not need to be treated are milled and planed, a fine-grained AC-13 and SBS asphalt concrete upper surface layer is finally paved together. By means ofthe scheme, the old and stubborn problem of long-term pavement subsidence at local positions of a road can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of road construction and reinforcement, in particular to a method for repairing road surfaces by using grouting to reinforce roadbeds. Background technique [0002] With the continuous development of my country's economy, the road traffic volume is increasing, and the road surface has been damaged to varying degrees due to the impact of vehicle load, pipeline excavation, and disrepair. Part of the road surface has local network cracks, cracks, road surface sinking and damage around the inspection well. Seriously affect the travel safety of surrounding residents, and urgently need repairs and renovations. [0003] At present, after most roads are partially damaged, they are not repaired in time due to conditions such as maintenance approval procedures and funding sources. Instead, they wait for the road surface to be severely damaged (the specific damage level is determined by a third-party inspection) befor...

AI Technical Summary

Problems solved by technology

Seriously affect the travel safety of surrounding residents, and urgently need repairs and renovations

[0003] At present, after most roads are partially damaged, they are not repaired in time due to conditions such as maintenance approval procedures and funding sources. Instead, they wait for the road surface to be severely damaged (the specific damage level is determined by a third-party inspection) before re-paving, resulting in The first damaged position is more and more damaged under the repeated action of vehicle load and rainwater

Due to the high traffic pressure on urban roads, the tight construction schedule, and the serious shortage of large-scale construction machinery in the road surface disease area, and the need for rapid construction and resumption of traffic, many road repairs did not carry out special treatment for seriously damaged roadbeds. , leading to damage in the same position after repeated repairs

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