DEVELOPMENT OF LIFT-UP METHOD FOR REHABILITATION OF SETTLED PRESTRESSED CONCRETE PAVEMENTS

Abstract

The article "Development of Lift-Up Method for Rehabilitation of Settled Prestressed Concrete Pavements" introduces a novel approach to rectify unevenness and settlement issues in prestressed concrete (PC) pavements, particularly common in infrastructure such as airports constructed on reclaimed land or high embankments. Traditional methods, such as concrete overlays or reconstruction, require significant downtime, prompting the need for a more efficient solution. This study presents a lift-up method that leverages hydraulic jacks and automated control systems for precise, safe, and rapid adjustment of settled slabs. The process involves installing jacks at specific settlement areas without prior equipment installation, significantly reducing labor and time by automating lifting and grouting operations. Tests conducted on pavement models confirm the method's efficacy, showcasing its ability to lift slabs with minimal disruption. By offering a detailed comparison between traditional methods and the proposed solution, the research underscores improvements in safety, efficiency, and cost-effectiveness, suggesting a promising alternative for PC pavement rehabilitation. This method's scalability and adaptability to different settlement types and pavement conditions herald a significant advancement in civil engineering practices, potentially transforming how infrastructure maintenance and rehabilitation are approached. (Abstract generated by AI tool ChatGPT 4)