大直径扩底桩承载力及沉降变形的计算  

Research on Designing Bearing Capacity and Evaluation of Settlement of Man-Dug Caisson Foundation with Belled-Out Piles of Big Diameters

作　　者：何颐华[1] 王铁宏[1] 

机构地区：[1]中国建筑科学研究院

出　　处：《建筑结构学报》1993年第2期63-71,共9页Journal of Building Structures

摘　　要：大直径扩底桩(墩)在我国已得到广泛的应用,其设计计算方法目前仍沿用传统的单一极限应力设计方法,有许多不合理之处。本文根据近几年的研究成果,参考国外一些设计理论,提出一套适合我国具体情况的大直径扩底桩(墩)在变形和极限应力双控制条件下的设计方法。The man-dug caisson foundation with belled-out piles of large diameters have been widely used in highrise building in China. Yet the method of design is still imperfect, since only the unique ultimate bearing capacity control is considered in calculation. Based on the research achievements of recent years at home and abroad, this paper presents a double control method for designing such foundation with belled-out piles of big diameters, i.e. design controlled both by settlement and bearing capacity of the foundation.

关 键 词：大直径扩底桩 承载力 沉降变形 

分 类 号：TU473.11[建筑科学—结构工程]