山区跨河特大桥桥位选择研究

Research on Site Selection of Cross-River Super Major Bridges in Mountainous Areas : A Case Study of Yunyang Shuangjiang Second Bridge in Chongqing

摘要:

为解决山区跨河特大桥梁建设过程中面临的复杂地形地貌、水库水位变幅、复杂施工条件等问题，综合考虑桥位选择所面临的自然环境、工程技术、社会经济等多方面因素，通过多准则决策分析、地理信息系统（GIS）和建筑信息模型（BIM）技术应用、数值模拟与试验验证等方法，以重庆市云阳双江二桥为工程实例，进行了山区跨河特大桥桥位选择的研究。研究表明，科学合理的桥位选择是确保山区跨河特大桥安全、经济、高效建设与运营的关键，云阳双江二桥的桥位选择经验对同类工程具有重要的借鉴意义。

Abstract:

To solve the problems such as complex terrain, reservoir water level fluctuations and complex construction conditions faced in the construction of super major bridges across rivers in mountainous areas, a comprehensive consideration is given to the natural environment, engineering technology, socio-economy and other factors involved in the selection of bridge site. Through the multi-criteria decision analysis, geographic information system (GIS) and building information modeling (BIM) technology application, numerical simulation and experimental verification methods, and taking the Yunyang Shuangjiang Second Bridge in Chongqing as an engineering example, a study is conducted on the selection of bridge site for super major bridges across rivers in mountainous areas. Research shows that scientific and reasonable selection of bridge site is the key to ensure the safe, economical and efficient construction and operation of cross-river super major bridges in mountainous areas. The experience in the selection of bridge site for Yunyang Shuangjiang Second Bridge has important reference significance for similar projects.