土工格栅在新旧路拼接设计中的应用

由于公路建设的迅猛发展,对一些满负荷运行的公路需要进行拓宽改造,新老路基拼接已经成为公路建设工程中一个重要的研究课题。故针对省道邢昔线南良舍—皇寺段改建工程中新老路基结合部拼接处理方案进行分析研究,探讨土工格栅在解决因路基不均匀沉降而引起的纵、横向裂缝等病害问题上的应用,对于保证新老路基结合部道路的使用品质具有重要的意义。

Application of Geogrid in Design of New and Old Subgrade Joint

With the rapid development of highway construction,some highway in full load operation need widening. The joint of new and old subgrade has become an important research subject in highway construction. In allusion to the joint of new and old subgrade of Provincial Road Xing-Xi Line Nanliangshe-Huangsi Section,the disposal scheme is analyzed,the application of geogrid in solv-ing the disease caused by differential settlement of subgrade such as longitudinal crack,transverse crack and so on is discussed,which has important significance for insuring the service property of roads at the joint of new and old subgrade.