论文部分内容阅读
作为一种典型的灾害地貌过程 ,泥石流是山区公路重要的水毁类型之一。本文基于对西部公路沿线发育的泥石流水毁的调研 ,将穿越泥石流沟的公路结构形式概化为涵洞、桥梁和过水路面。将泥石流水毁的宏观表象概化为桥台泥石流水毁、上部结构泥石流水毁、桥台基础掏蚀、泥石流淤埋桥涵、泥石流水毁路基等类型。并用新构造应力场的观点探讨了泥石流水毁发育的宏观规律 ,研究成果对深入研究及防治公路泥石流水毁奠定了坚实的基础
As a typical disaster landscape, debris flow is one of the most important types of water damage on mountainous roads. Based on the investigation of the debris flow damage in the western part of the country, this paper summarizes the highway structure through the debris flow ditch as culverts, bridges and over water pavements. The macroscopic image of the destroyed debris flow is generalized as the debris flow of the debris flow in the abutment bridge, the destruction of debris flows in the superstructure, the undercutting abutment foundation, the buried bridges and culverts in the debris flow, and the damaged base of debris flow. The macroscopical regularity of debris flow water damage development was also discussed with the view of the new tectonic stress field. The research results laid a solid foundation for in-depth research and prevention and control of debris flow on highway