饱和软粘土地基沉桩过程中桩土挤压应力及超孔压计算  

Study on squeezing effect against soil and pore pressure by pile pushing in saturated soft clay foundation

作　　者：白冰[1] 徐建平[1] 周健[1] 

机构地区：[1]上海同济大学地下建筑与工程系,上海200092

出　　处：《重庆交通学院学报》2000年第3期1-3,7,共4页Journal of Chongqing Jiaotong University

基　　金：国家自然科学基金重点资助项目! (5 97381 6 0 )

摘　　要：饱和软粘土地基沉桩过程中桩土挤压所引起的桩周土体超孔隙水压力效应是非常显著的 .本文从弹塑性理论出发推导出沉桩过程中桩周土体挤压应力及超孔隙水压力的计算公式 。The excess pore water pressure of saturated soft clay foundation caused by pile pushing is obvious.The method for calculating squeezing stress and excess pore pressure by elastic plastic theory is deduced in this paper,and furthermore,the reasonable pile spacing by regarding the influence of both squeezing stress and excess water pressure is given.

关 键 词：饱和软粘土 挤压应力 孔隙水压力 地基沉桩 

分 类 号：TU447[建筑科学—岩土工程] TU470.3[建筑科学—土工工程]