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