CFG桩复合地基在湿陷性黄土地区高层建筑中的应用

CFG pile composite foundation used in high-rise building of loess area

CFG桩施工工艺简单,适应范围广,所用材料是在碎石桩的基础上加入少量的水泥和粉煤灰,受力特性与水泥搅拌桩类似。它可用于杂填土、饱和及非饱和粘性土、粉土、砂性土及湿陷性黄土地基中,以提高地基承载力和减少地基变形。

CFG pile has simple construction process and wide applicability,its material is gravel pile with addition of a small amount of cement and fly ash,it has similar mechanical properties as cement mixing pile. It can be applied to miscellaneous fill, saturaled and unsaturated clay,ilt, sandy,soil and collapsible loess foundation to improve the beating capacity of foundation and to reduce its deformation.