灌浆法在利用软弱冲积层作为人工挖孔桩持力层中的应用  

The application of grouting at pile foundation for soft alluvial layer

作　　者：郦世平[1] 罗诚[1] 郭健[1] 

机构地区：[1]湖南大学设计研究院,湖南长沙410082

出　　处：《四川建筑科学研究》2006年第1期105-107,共3页Sichuan Building Science

摘　　要：通过对冲积层中的软弱层进行灌浆处理,使难以成孔、扩底及承载能力较低的土层变成容易成孔、扩底且具有足够承载力的良好持力层,从而使基桩长度大大缩短,成桩工艺变得简单,为建设方取得了较好的社会效益和经济效益。同时,减少了施工中的抽水量和对周边环境的影响,从而保证了周边建筑的安全。It is very complex to dig a hole or to expand button for a pile foundation in a soft alluvial layer. A new process, we adopted grouting method to strengthen the soft alluvial layer of soil, was suggested by authors in the paper. By using the process, we could shorten the pile length, and made it have enough bear capacity, and the casting will be easier.The investor would get better social performance and economic performance.At the same time, the influence owing to the construction process to the peripheral environment would be reduced, so that the safety of the building around would be guaranteed.

关 键 词：冲积层 灌浆法 持力层 扩底 

分 类 号：TU473.1[建筑科学—结构工程]