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桥涵在公路工程建设过程中占有非常重要的地位,尤其是山区的小桥涵建设关系着农田水利发展,因此应当加强重视。然而传统的小桥涵建设方法较为简单,没有综合考虑优化设计对于工程成本及工程质量的制约作用,经常出现预算超支、工期延迟及质量可靠性不高等问题。实践中可以看到,山区小桥涵分布在道路的伞线,建设工程量比较大,而且投资额比较高,通常占整个道路建设总投资的二成左右。因此,山区小桥涵外业勘测、位置布设等,显得非常重要,不仅关系着工程的造价,而且对工程施工质量、安全可靠性,也会产生非常大的影响,因此加强对山区小桥涵外业勘测及优化设计问题的研究,具有非常重大的现实意义。本文重点研究山区公路小桥涵的优化设计,以便为山区小桥涵建设降低成本、提高质量、加快工期做出一定贡献。
Bridge and culvert occupy a very important position in the process of highway construction, especially the construction of bridges and culverts in mountainous areas is related to the development of farmland water conservancy, so it should pay more attention to it. However, the traditional method of constructing small bridges and culverts is relatively simple. There is no comprehensive consideration of the constraining effect of optimal design on the project cost and project quality. Often, problems such as budget overrun, duration delay and low quality and reliability are not always considered. In practice, it can be seen that small bridges and culverts in mountainous areas are distributed on the parachute lines of the roads, with relatively large quantities of construction projects and relatively high investment amounts, which usually account for about 20% of the total investment in road construction. Therefore, it is very important not only for the cost of the project but also for the construction quality and safety and reliability of the project to have a great impact on the survey and location of small bridges and culverts in the mountain areas. Therefore, Investigation and optimization of design issues, with great practical significance. This paper focuses on the optimal design of small bridges and culverts in mountainous areas in order to make some contribution to the construction of small bridges and culverts in mountainous areas to reduce costs, improve quality and speed up the construction period.