To resolve the problems of expropriation terra and portrait crack between new and old subgrade because of asymmetry sedimentation,a length of experiment embankment of Foam Cement Banking(FCB) is budded in the enlargement engineering of Guangfo ficeway.

• 为解决征地难和新老路基拼接不均匀沉降导致的纵向裂缝问题,广佛高速公路扩建工程修建了气泡混合轻质土路堤加宽试验段。