浅谈旧路改建设计

On the design of old highway reconstruction

结合孙吴线段公路改建设计的实际情况，对原有旧路的路线、桥涵、路基工程、路面工程、排水工程中需保留和设计需改进的问题进行了分析阐述，为其他公路的改建设计提供了参考。

Combined with practical circumstance of highway reconstruction design in Sun-Wu line section, the author analyzes and illustrates the problems should be maintained, designed or improved in the route, culvert, roadbed construction, pavement engineering and drainage works of old highway, which to offer a reference for reconstruction design of other highways.