随着国家城市发展,土地资源越来越稀缺,发展逐步向地下和空中发展。基坑越挖越深,楼越盖越高。出现了大量深基坑工程。常用连续墙,桩锚等,止水采用帷幕桩较多。本文着重阐述三轴水泥搅拌桩和灌注桩支护体系原理,以及施工过程中容易出现的问题进行分析。 With the development of national cities, land resources are becoming more and more scarce, and their development gradually develops underground and in the sky. Deep excavation deepening, the more cover the higher the floor. A large number of deep foundation pit projects have emerged. Common continuous wall, pile anchor, water stop using more curtain piles. This article focuses on the principle of triaxial cement mixing pile and bored pile support system, as well as the problems that are easy to appear in the construction process.