高速公路临水临崖高填方段路侧护栏设计方法研究

Study on Design Approach of Water and Cliff High-filled Section Roadside Guardrail of Expressway

高速公路高填方、临水临崖段时有发生严重的交通事故,现行公路护栏设计对此没有针对性的、便于操作的设计方法,通过护栏等级设置和护栏型式选择两方面的研究,得出了结合路侧环境、道路条件、交通量、事故情况等因素的量化的设计方法,同时对可选用护栏型式进行了总结,给出了推荐护栏型式的方案。

There are sometimes accidents in water and cliff high - filled section of expressway, and there is no specific and easy operating design method in current roadside guardrail design method. Studied through two aspects of guardrail level setting and guardrail model selection, we created design method of combining factors of roadside environment, road condition, traffic load, traffic accidents situation, etc. and at the same time, made summary of selectahle guardrail models and proposed scheme of recommended guardrail model.