大体积现浇泡沫轻质土路基设计的应用研究

泡沫轻质土作为一种新型路基填筑材料,具有轻质性、流动性、强度和密度可调节性、施工方便及环保等特点,目前逐渐推广应用于道路软基处理、路基拓宽、桥梁台后处理、地铁工程减荷回填等方面。以广明高速罗格收费站广场为依托,从设计、施工过程控制及通车后的沉降监测等方面,研究大体积现浇泡沫轻质土的工后沉降控制及处理效果评价。

Study on Design and Application of Large-volume Cast-in-situ Foam Light Soil Subgrade

As a new subgrade filling material,the foam light soil has the characteristics of light weight,fluidity,adjustable strength and density,convenient construction and environmental protection,and has been gradually popularized and applied in the aspects of soil roadbed treatment,subgrade widening,post treatment of bridge abutment,and off-load backfill of metro engineering now.Relying on Guangming Expressway Luoge Toll Gate Square,the post-construction settlement control and treatment effect of large-volume cast-in-situ foam light soil are studied and evaluated from the aspects of design and construction process control,and settlement monitoring after traffic.