Scientific Development Research

With the acceleration of urbanization, the aging problem of urban infrastructure has become increasingly prominent, especially the aging and damage of pipe network systems, which urgently require efficient and low-impact repair technologies for solutions. Traditional excavation-based repair methods not only have a significant impact on the environment but also involve long construction cycles and high costs. As a new type of pipe network repair method, trenchless repair technology has gradually been widely applied in urban renewal projects due to its ability to effectively reduce ground damage and construction time. This paper compares and analyzes existing trenchless repair technologies, including the advantages and disadvantages of lining repair, directional drilling, and other technologies, aiming to provide a scientific and feasible technical scheme for pipe network repair in urban renewal. Selecting appropriate trenchless repair technologies can not only effectively improve repair efficiency but also reduce negative impacts on the surrounding environment, with significant economic and social benefits.

Urban renewal; Trenchless repair; Pipe network technology; Lining repair; Directional drilling