当阳经枝江至松滋高速公路设计问题及对策研究

Research on Design Problems and Countermeasures of Dangyang-Zhijiang-Songzi Expressway

平原区高速公路设计受诸多因素的制约,较难平衡好设计方案、工程规模和环境保护之间的关系。文章以当阳经枝江至松滋高速公路为例,从路线、桥梁、互通等方面分析了平原区高速公路在设计中遇到的关键问题,并针对各类问题提出了相应的解决办法。分析表明,设计时可通过加强现场调查、控制填土高度、调整桥梁跨径、进行互通综合比选等手段,可提升平原区高速公路总体设计方案的合理性,显著改善区域路网布局,助力地方经济发展。

The design of expressway in plain areas is restricted by many factors,and it is difficult to balance the relationship between design scheme,engineering scale and environmental protection.Taking Dangyang-Zhijiang-Songzi Expressway as an example,this paper analyzes key problems encountered in the design of expressway in plain areas from the aspects of route,bridge and interchange,and puts forward corresponding solutions to various problems.The analysis shows that the rationality of the overall design scheme of the expressway in plain areas can be improved by strengthening the field investigation,controlling the filling height,adjusting bridge span,and conducting comprehensive comparison and selection of the interchange,which can significantly improve the layout of the regional road network and help the local economic development.