In light of technological problems occurring in design and construction of arch circle of stone arch bridge, it studies various factors leading to quality diseases of stone arch bridge, analyzes the causes and preventive measures for stone arch bridge quality disease, and obtains four damage mechanisms and patterns of stone arch bridge engineering disease. In the end, it applies math knowledge to deduce and discusses the arch axis formula of inclined stone arch bridge, which has provided technological guarantee for the design and construction.%针对石拱桥拱圈在设计施工中出现的技术问题，研究了石拱桥质量通病的各种诱发因素，主要通过对道路石拱桥质量通病的成因及防治措施进行分析，得出石拱桥工程病害的四种破坏机理与模式，最后主要针对斜石拱桥拱轴线公式应用数学知识归纳推导和论证，为设计和施工提供了技术保障。
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