摘要
确定单桩竖向极限承载力一直是桩基础设计的重要问题,本文通过哈尔滨某工程的静压预应力管桩的隔时复压试验,并根据静压桩的单桩竖向极限承载力随时间呈双曲线增长的关系,得到粘性土地区依据沉桩终压力推算单桩竖向极限承载力的估算公式。
In pile foundation design, it is always an important problem to define the vertical ultimate beating capacity. The re - pressed tests were done on the jacked - in PHC pipe pile of one project in Harbin, at different time. The hyperbolic relationship of the vertical ultimate bearing capacity and time presented an increasing tendency. Based on the result, an estimating formula was proposed to calculate the vertical ultimate bearing capacity of the pile according to final pressure in cohesive soil area.
出处
《低温建筑技术》
2009年第1期85-86,共2页
Low Temperature Architecture Technology
关键词
静压PHC管桩
粘性土地区
承载力
时效性
jacked - in PHC pipe pile
cohesive soil area
bearing capacity
time effect
