应用大直径人工挖孔扩底桩提高效益的探讨  

Discussion on Improving Profit by Large Dimeter Belled Pile

作　　者：屈建民 

机构地区：[1]北京市卫建设计所,100054

出　　处：《建筑结构》1999年第5期46-47,共2页Building Structure

摘　　要：结合一个原设计是锤击预制桩基础后改为大直径人工挖孔扩底桩基础的工程，总结变更 设计的成功之处，并对如何合理应用大直径人工挖孔扩底桩基础提高经济效益进行了探讨。Compared to primary design of precast pile, a new design is applied in the large diameter pile with bulb shaped size, which reduced the cost of the foundation by one third and improving the economic and social profits greatly. The suitable condition and the practical application of large diameter pile with bulb shaped bases are profoundly discussed.

关 键 词：挖孔扩底桩 经济效益 设计 扩孔桩 大直径 

分 类 号：TU473.13[建筑科学—结构工程]