南丹至天峨下老高速公路桥梁施工设计要点分析

Analysis of Bridge Design Points of Nandan to Tiane Xialao Expressway

以广西南丹至天峨下老山区高速公路工程为例,通过分析该山区桥梁在地形地貌、水文等各种恶劣条件下遇到的设计问题,分析桥梁设计的重点,总结出以桥梁稳定为主,防护相互结合的设计重点,为类似工程设计提供参考。

Taking the old expressway project from Nandan to Tiane in Guangxi as an example,this paper analyzes the design problems of bridges in mountainous areas under various harsh conditions,and summarizes the key points of bridge structure selection,stability of bridge piers and abutments,anti scouring design and safety protection,providing reference value for similar engineering design.