摘要
采用线弹塑性荷载传递函数 ,按极限承载力控制法确定水泥搅拌桩的有效桩长 .分析了土的泊松比、桩刚度系数、桩端土持力层弹性模量与桩周土弹性模量之比、桩径、桩侧极限位移和桩顶沉降量等因素对水泥搅拌桩有效桩长的影响 ,其结果表明 ,除土层泊松比对有效桩长影响不明显外 。
According to the ultimate bearing capacity control method, the effective length of a cement-mixed pile is calculated with the linear elastic-plastic load transfer function. Influence factors of effective length such as Poisson's ratio of soil, coefficient of rigidity of pile, elastic modulus ratio of the bottom soil and surrounding soil, pile's diameter, side ultimate displacement and top settlement of pile are analyzed. It can be seen that the factors have certain effects on the effective length except Poisson's ratio of soil.
出处
《水利水运工程学报》
CSCD
北大核心
2002年第3期14-20,共7页
Hydro-Science and Engineering
关键词
水泥搅拌桩
有效桩长
极限承载力
荷载
传递函数
effective length
ultimate bearing capacity
load-transfer function
cement-mixed pile
