轻质土在高速公路建设中的探索与应用

结合高恩高速公路工程实例，系统介绍了气泡混合轻质土（FCB）的施工流程、要点，针对气泡轻质土在高恩项目台背回填、挡土墙、路基填筑中的应用，提出5种应用方案，解决了该项目通行净宽不足、施工空间受限、地基承载力不足、路基失稳等问题，在保证质量的同时，节约了造价和用地。

Exploration and Application of Light Soil in Highway Construction

Combining with the engineering example of Gaoen Expressway, this paper systematically introduces the construction process and key points of the air bubble mixed light soil (FCB). The bubble light soil has been applied in the backfilling of abutment, retaining wall and roadbed filling of the Gaoen project. Five application schemes are put forward to solve the problems of insufficient net width of the project, limited construction space, insufficient bearing capacity of foundation and unstable subgrade, not only guaranteeing the quality, but also saving the cost and land.