软基在旧路扩建工程中综合处治的设计

Design of the Soft Base Being Punished Synthetically in Extension Project of Old Road

在旧路扩建工程中的设计最关键问题是如何处理软基去减小新旧路基间的不均匀沉降,避免长期通车后新旧路基衔接处路面出现纵、横向裂缝,使新旧路基良好衔接。以广东省佛山市顺德区三洪奇至乐从段改造扩建工程为例,着重介绍扩建部分软基和新旧路基衔接部位综合处治的方法,望能为其他同类旧路扩建工程提供借鉴。

The most key problem of design in the extension project of old road is how to deal with subsiding not evenly while reducing the new and old road bed of soft base, avoid the surface of the new and old road bed from connecting the place to appear the vertical horizontal crack after being open to the traffic for a long time, make the new or old road bed connect well. This text transforms as the example with the section of extension project from Sanhongqi to Lecong in Guangdong Province Shunde, city of Foshan, introduces the methods that punish synthetically the soft base being extended and the new and old road bed connect position emphatically, hope to offer reference for other similar extension projects of old road.