A Review of the Stability Analysis of Roadbed Slope and Prevention Technologies

Roads are important infrastructure for a country’s economic and social development. The stability of subgrade slopes, as one of the most prominent engineering issues in roads, is of great significance for the assessment and analysis of the stability and prevention of subgrade slopes. In order to further promote the development of roadbed slope stability and prevention engineering, improve the design level of road engineering slope engineering disaster management projects, and reduce the cost of engineering investment, this paper starts from the category of roadbed slope damage form, respectively, for the research method of slope stability, slope stability influencing factors, and slope damage prevention and control measures to carry out a review, based on the current status of the research and the future direction of research. It was found that the damage forms of roadbed slopes are roughly divided into four categories: landslide, avalanche, slump, and spalling. A field test is the most accurate and practical means of evaluating slope stability research. The current analysis of the factors affecting slope stability is too independent, and there is a need to analyze the coupling relationship between the various influencing factors as a whole. Furthermore, the paper outlines a range of preventive measures and control strategies, including slope reinforcement techniques, vegetation cover, and drainage management, which have proven effective in reducing slope failure risks. These results provide critical insights into the design of more resilient roadbed slopes, with potential implications for reducing engineering costs and improving the safety and sustainability of road infrastructure.