营运高速公路路侧护栏上游端头设计研究

Study on Design of Upstream End of Side Guardrail of Operating Expressway

结合具体项目,对当前存在的营运高速公路路侧护栏上游端头设置问题进行探讨,并对设计方案进行对比分析,主要包括外展处置方案,即连通方案、定型产品跨边沟方案、边沟盖板锚固方案、改边沟方案、吸能端头方案,以及端部锚固方案,包括端部圆端头锚固方案、端部埋入混凝土锚固方案、端部覆土方案,同时提出具体的优化措施。

Combined with specific projects,the existing problems of the upstream end of the side guardrail of operating expressways are discussed,and the design schemes are compared and analyzed,mainly including the outreaching disposal scheme.Namely,connectivity scheme,shape product across side ditch scheme,side ditch cover anchoring scheme,change side ditch scheme,energy absorbing end end scheme,and end anchoring scheme,namely round end end anchoring scheme,end embedded concrete anchoring scheme,end soil covering scheme.At the same time,the specific optimization measures are put forward.