软土中钻孔灌注桩的承载力研究  

Investigation of the Bearing Capacity of Bored Piles in Soft Soil

作　　者：陈强华[1] 洪毓康[1] 陈坚峰 张雁[3] 

机构地区：[1]同济大学岩土工程系 [2]华东建筑设计院 [3]中国建筑科学研究院

出　　处：《同济大学学报（自然科学版）》1993年第2期203-209,共7页Journal of Tongji University:Natural Science

摘　　要：本文回顾了钻孔灌注桩在上海地区的使用与发展过程,报道了30～70m深度范围内的该类桩的承载能力。获得了上海地区代表性土层的极限桩侧摩阻力平均τ值、极限桩端阻力σ值的量测值,并与规范建议值作了比较;发现实测σ值约为规范值的1/2,平均τ值接近于规范值。This paper reviews the use and development of the bored piles in Shanghai area and reports the bearing capacity of such piles in the depths of 30—70m. An average value τ of the ultimate skin frictional resistance of the piles and the measured value of the ultimate tip resistance δ of the piles are obtained for the representative layer in Shanghai area and are compared with the values suggested by the Code. It is found that the measured value δ is about 1/2 of the value given by the Code and that the average value τ is close to the one given by the Code.

关 键 词：钻孔灌注桩 承载力 软土 

分 类 号：TU473.14[建筑科学—结构工程]