摘要
饱和软土中挤土桩的承载力随时间的增长与沉桩引起的超孔隙水压力大小及其消散有密切关系。分析了小孔扩张理论的不足，提出用土压力理论来估算沉桩引起的超孔隙水压力。分别讨论了单桩和群桩两种情况下超孔隙水压力的计算，并与实测资料进行了对比。
The dissipation of excess pore-water pressure has a direct bearing on the increase of pile capacity. In this paper the defect of the theory of expansion of a cylindric cavity in a mass is analysed. The theory of earth pressure is used to estimate the excess pore-water pressure developed during pile driving. The comparisons between the measured values and theoretic values are made.
出处
《岩土力学》
EI
CAS
CSCD
1997年第4期30-35,共6页
Rock and Soil Mechanics
关键词
饱和软土
沉桩
孔隙水压力
桩基
pile driving
excess pore-water pressure
theory of expansion of a cylindric cavity
theory of earth pressure
