高速铁路桥梁设计中几个关键问题的探讨

Discussion on Several Key Problems in the Design of High-speed Railway Bridge

近十多年来我国高速铁路快速发展,同时高铁桥梁比例也越来越高。经过十多年的运营检验,文章在总结积累已通车运营项目设计经验的同时,针对高速铁路桥梁设计中经常遇到的路桥方案选择、桥梁弃土方案选择、铁路枢纽区域桥梁方案选择、高铁桥梁外部环境安全的关键应对措施等一些关键问题和困扰设计人员的一些常见难题,结合社会和地方发展现状、远期规划和高质量发展需求,在既有设计理念的基础上深入思考,提出了新的解决思路和措施。

In recent ten years,China’s high-speed railway has developed rapidly.At the same time,the proportion of bridges in high-speed railway is becoming higher and higher.After more than ten years of operation test,while summarizing and accumulating the design experience of open to traffic projects,this paper aims at some key problems often encountered in the design of high-speed railway bridges,such as the selection of road and bridge schemes,the selection of bridge spoil schemes,the selection of bridge schemes in railway hub areas,key countermeasures for the external environmental safety of high-speed railway bridges,and some common problems perplexing designers,combined with the current situation of social and local development,long-term planning and high-quality development needs,new solutions and measures are put forward based on the existing design concept.