公路特大型泥石流是国内外迄今尚未解决的主要公路病害 ,具有大冲大淤、冲击路径变化不确定以及毁损作用极其强烈的特性 ,是公路泥石流研究及防治的核心。本文基于两相流理论建立了泥石流冲击力计算公式 ;遵循特大型泥石流发育特点及公路泥石流防治特殊要求建构了泥石流综合治理模式 ,并开发了速流结构、底埋隧道、翼型墩汇流技术及糙桩技术 ,并对相关的核心技术进行了深入分析。研究成果对于彻底解决公路特大型泥石流病害奠定了重要的技术基础 The large debris flow of highway is the unsolved main road disease at home and abroad, with the characteristics of large red muddy silt, uncertain change of impact path and extremely strong damage. It is the core of highway debris flow research and prevention. Based on the theory of two-phase flow, a formula to calculate the impact force of debris flow is established. According to the development characteristics of large debris flow and the special requirements of debris flow prevention and control, a comprehensive debris flow control mode is constructed and the quick-flow structure, bottom-buried tunnel and airfoil pier confluence technology are developed. Rough pile technology, and related core technologies conducted in-depth analysis. The research results have laid an important technical foundation for thoroughly solving the serious debris flow disease in the highway