摘要
到目前为止,上海地区仍按常规方法计算地基变形。本文针对上海的亚砂土以拉德—邓肯模型为依据,利用常规三轴仪对苏州河北岸的两组土样,进行弹塑性应力—应变特性试验,并且研究确定有关参数的方法及其变化规律,指出拉德—邓肯模型的不足之处,计算的变形值与试验数据相当符合,为上海地区的砂类土采用弹塑性模型创造了条件。
Up to now the conventional method of calculation of the foundation settlement isstill used in Shanghai area.Based on Lade-Duncan model,the consolidated-drained triaxial testwas performed on two setss of clayey sand ten spocimeno each,to study its elastoplastic pro-perties.In this paper,the determination of the relevant soil parameters and its behavioursare studied。The calculated results of the deformation agree guite closely with the measurem-ents made in the laboratory,which is helpful to the calculation of the foundation settle-ment by the elastoplastic model for clayey sand in Shangai areao
