关于高速环道横断面设计探讨

Discussion on Cross Section Design of Ring Expressway

介绍了高速环道横断面设计时平衡车速、车道规模和曲线形式这三个要素的选取原则,在此基础上介绍了高速环道横断面的车道投影等宽和车道实际等宽的设计方法,并对两种设计方法进行了定性的对比分析,得出车道实际等宽设计时能够减少工程土方量,减小工程总投资。

The article introduces the selection principle of three elements of balance speed, lane scale and curve form during the cross section design of ring expressway. On this basis, the article introduces the design methods of lane projection equivalent width and lane actual equivalent width of the cross section for ring expressway, and qualitatively contrasts and analyzes two design methods. The result shows the achievement of lane actual equivalent width design can decrease the engineering earth volume and reduce the total engineering investment.