【摘要】 桩土共同作用下的复合基础是介于常规桩基与天然基础之间的一种基础形式,对其作用与机理作了简单探讨。关于桩土复合基础的沉降计算方法目前较少,按上海地基基础设计规范提供的方法在荷载较大时沉降值计算偏小,在保证结构安全度与设计减少桩数用量的前提下,本文提出计算复合基础沉降的一种改进方法,并给出一工程实例,可供同行设计参考。更多还原

【Abstract】 Pile-soil composite subgrade is a kind of foundation type between pile foundation and natural shallow foundation.The action mechanism of pile-soil composite subgrade was discribed.Settlement calculating method of pile-soil composite subgrade is infrequent.The settlement calculating result based on ’Foundation design code of shanghai’ is usually smaller than true fact when loads of upper structure are biggish.Based on the condition of structural safety and for the sake of reducing the pile numbers,an upgraded method was put forward to calculate the settlement of the composite subgrade,and an example was presented for the reference to engineers.更多还原