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由于受到建造时材料、技术和资金等方面的限制,在当前农村公路交通迅速发展的形势下,大部分农村公路旧桥出现了各种各样的损伤、病害甚至破损,若不对这些公路旧桥进行检查、评估和加固改造,将极有可能对这些桥梁的营运安全和长久使用造成比较严重的不利影响。因此,以湖南省桃源县为例,在对农村公路旧桥进行现场调查、分析和检查的基础上,总结归纳农村公路旧桥的病害类型,根据旧桥的检查结果对其技术状况进行评定,基于经济、高效的原则,以提高旧桥的通行能力和承载能力为目标,结合相应旧桥的实际情况提出旧桥加固改造的方法和措施,从而为农村公路旧桥的长久使用打下坚实的基础。
Due to the construction materials, technologies and funds constraints, the rapid development of rural road traffic in the current situation, most of the rural roads have a variety of old bridge damage, damage or even damage, if not on these roads Old Bridge Conducting inspections, assessments and retrofitting will most likely have a more serious negative impact on the operational safety and long-term use of these bridges. Therefore, taking Taoyuan County of Hunan Province as an example, on the basis of on-site investigation, analysis and inspection of old rural roads, the types of diseases of old roads in rural roads are summarized, and the technical conditions are evaluated according to the inspection results of old bridges. Based on the principle of economy and high efficiency, with the goal of improving the capacity and carrying capacity of old bridges, the methods and measures for strengthening and rebuilding old bridges are put forward according to the actual conditions of the old ones so as to lay a solid foundation for the long-term use of old bridges in rural roads .