泉南高速公路洛维柳江特大桥改扩建方案研究

Research on Reconstruction and Expansion Programs of Luowei Liujiang Super-large Bridge in Quannan Expressway

洛维柳江特大桥作为泉南高速公路广西柳州至南宁段改扩建工程的关键性工程,是该改扩建项目的重点和难点。文章根据该桥梁的工程条件和通航要求,结合现有桥梁的技术状况,提出了保留原桥并加宽和拆旧桥建新桥两种改扩建方案,通过比较分析,得出了合理的改扩建推荐方案。

As the key project of Guangxi Liuzhou-Nanning segment reconstruction and expansion project in Quannan Expressway,Luowei Liujiang Super-large Bridge is the key point and difficulty of this re-construction and expansion project.Based on the engineering conditions and navigation requirements of this bridge,and combined with the technical condition of existing bridge,this article proposed two re-construction and expansion programs of retaining the original bridge with the widening as well as build-ing the new bridge with the demolition of old bridge,then through comparative analysis,obtained the reasonable recommended reconstruction and expansion program.