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公路选线要全方位地考虑路线通过地区的地形地貌、地质条件、社会经济发展情况、当地风俗习惯和工程的难易程度,以及路线的性质、使用任务、等级和投资等因素。该文通过对山区公路中的沿溪线、越岭线、山脊线的选线基本方法和理论的分析,总结归纳出目前山区公路选线中存在的问题及初步解决措施,并概括出在山区公路选线中应遵循的一些原则。研究了公路选线的设计方法,并应用到石门县S304改造工程中,对该工程起点选线进行了研究,得出选用推荐线的结论。
Highway alignment should consider all aspects of the route through the topography, geological conditions, socio-economic development, local customs and ease of engineering, and the nature of the route, the use of tasks, levels and investment and other factors. This paper summarizes the existing problems and the preliminary solutions in the mountain highway route selection through the basic methods and theoretical analysis of the line selection of the Yanxi line, the Lingling line and the ridgeline in the mountainous highway, Highway route selection should follow some of the principles. The design method of highway alignment is studied and applied to S304 reconstruction project of Shimen County. The starting line selection of this project is studied, and the conclusion of selecting recommended line is obtained.