成都市中心城区缓堵保畅“两快两射两环”项目，成都/市政

成都二环路高架桥，全长28.3公里，为成都市缓堵保畅的重大民生工程，全线采用全国首创的“快速路+快速公交”方式；重视通行功能的同时，注重桥梁美学的应用。入选了“全国首批民生改善典范”重大民生工程典范案例。

 

The Chengdu Second Ring Road Viaduct, with a total length of 28.3 kilometers, is a major livelihood project for Chengdu to alleviate congestion and ensure smooth traffic. The entire line adopts the nationally pioneered "expressway+bus rapid transit" method; Pay attention to the application of bridge aesthetics while emphasizing the traffic function. Selected as one of the "National First Batch of Exemplary Livelihood Improvement Projects" for major livelihood projects.

 

▼二环路杉板桥夜景图，Night view of Shanban Bridge on the Second Ring Road

 

我公司完成了成都二环高架东三标和西一标的设计工作，涉及的主要立交节点包括人南立交、科华立交、杉板桥立交等，占全线比例达四分之一。

 

Our company has completed the design work of the East Third and West First sections of the Chengdu Second Ring Elevated Road, involving the main interchange nodes including Rennan Interchange, Kehua Interchange, Shanbanqiao Interchange, etc., accounting for one fourth of the entire line.

 

成都市二环高架桥是成都市重要的环形城市主干道，主桥全长28.3公里，匝道桥总长27.1公里，双向6车道（含两条快速公交道）。自运行以来，二环高架桥充分发挥了快速通行和交通转换的巨大作用，极大改善了市民出行条件，为城市经济发展作出了自己的贡献。

 

The Chengdu Second Ring Viaduct is an important circular urban trunk road in Chengdu, with a total length of 28.3 kilometers for the main bridge and 27.1 kilometers for the ramp bridge. It has six lanes in both directions (including two bus rapid transit lanes). Since its operation, the Second Ring Viaduct has fully played a huge role in rapid traffic and traffic conversion, greatly improving the travel conditions of citizens and making its own contribution to the development of the urban economy.

 

 

新建的人南立交主线桥限制条件较多，既要下穿天府大道，又要上跨底层既有的下穿通道，且新建主线桥位于地铁1号线正上方，需要减轻荷载。综合各方面因素，设计采用了二环高架全线最薄的45cm主梁并结合挖孔桩的方案，景观效果较好；科华立交桥为了功能需要，在有限的空间内布置出了一条180度的掉头匝道，弯道半径R=23米，为全二环半径最小的匝道桥；而我标段的南府河桥，跨度既是全环最大，也是唯一一个需要和既有南府河桥叠建的桥梁，技术难度较大。

 

The newly built Rennan Interchange main bridge has many restrictions, requiring both underpass Tianfu Avenue and the existing underpass on the ground floor. Moreover, the newly built main bridge is located directly above Metro Line 1, and the load needs to be reduced. Taking into account various factors, the design adopts the thinnest 45cm main beam along the entire line of the Second Ring Elevated Line, combined with excavation piles, which has a good landscape effect; In order to meet functional requirements, Kehua Interchange has arranged a 180 degree turn around ramp in a limited space, with a radius of R=23 meters, making it the ramp bridge with the smallest radius in the entire second ring road; The Nanfu River Bridge in my bid section has the largest span in the entire ring and is also the only bridge that needs to be built on top of the existing Nanfu River Bridge, making it technically challenging.

 

一座城市总有这么一座标志性的道路，它见证着这座城市的文明与进步，记录着城市的崛起与繁荣！

 

A city always has such an iconic road, which witnesses the civilization and progress of the city, and records the rise and prosperity of the city!

 

 

▼二环路高架桥——人南立交，Second Ring Road Viaduct - Rennan Interchange

 

 

 

项目名称：成都市中心城区缓堵保畅“两快两射两环”项目 二环路西段改造工程项目EPC3标段

项目类别：市政

项目位置：四川省成都市

项目获奖：2020年度四川省优秀工程勘察设计二等奖

 

Project Name: EPC3 Bid Section of the West Section of the Second Ring Road Renovation Project of the "Two Speeds, Two Shoots, and Two Rings" Project to Alleviate Congestion and Ensure Smooth Traffic in the Central Urban Area of Chengdu

Project category: Municipal

Project location: Chengdu City, Sichuan Province

Project Award: Second Prize of Excellent Engineering Survey and Design in Sichuan Province in 2020