深汕高速公路软基段路面处治方案设计

Scheme Design of Pavement Treatment for Soft Ground Road Section in Shenshan Freeway

深汕高速公路软基路段经地基加固处理并铺设过渡性路面后投入运营3a,路面出现不同程度破坏。通过调查,软土地基物理力学性能已明显改善,但在重车超荷作用下,过渡性路面承载力不足,加上雨水浸蚀,路面遭受破坏,进行处治势在必行。文章介绍了对过渡性路面改造的补强设计、病害处理和加铺罩面设计方案。实践证明,经处治后路况良好。

years after the foundation consolidation treatment and the paving of interim pavement for soft ground road section in Shenshan Freeway, pavement failures of different degrees are found. Based on investigation, it is found that the physical mechanical performances of soft ground have been improved obviously. However, under the over-loading of heavy trucks and the erosion of rainwater, the interim pavement of insufficient bearing capacity has been distressed and has to be treated. Introduced hereby are design scheme for interim pavement on strengthening, distress treatment and paving of overlay. The result shows that the pavement treatment is successful.