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随着我国经济发展水平的不断提高,国内交通运输业呈现出高速发展的势头,因此对道路基础设施需要提出更高的要求。另一方面,不少地方公路桥梁由于建造时间较早,桥面设计宽度过小,无法满足当前交通运输发展的需要,因此旧桥加固和拓宽改造成为解决当前道路运输瓶颈的重要途径。本文分析了旧桥梁拓宽改造中新旧桥衔接遇到的主要技术问题,并分析了几种常见的衔接技术。
With the continuous improvement of the level of economic development in our country, the domestic transportation industry has shown a momentum of rapid development. Therefore, the road infrastructure needs to be put forward higher requirements. On the other hand, many local highways and bridges have not been able to meet the needs of current transport development due to their earlier construction time and too small deck width. Therefore, the reinforcement and widening of the old bridges are important ways to solve the bottleneck of road transport. This paper analyzes the main technical problems encountered in the connection between old and new bridges in the process of broadening and rebuilding old bridges, and analyzes several common convergence techniques.