刚性桩复合地基沉降计算分析

复合桩基是考虑桩与承台地基土共同承载的一种桩基础形式,在沿海地区得到了广泛的应用。应用改进Geddes应力解和Boussinesq解的联合法计算软土地基刚性桩地基的沉降,计算时考虑了桩的荷载传递特性、桩周摩阻力及桩端均布荷载等符合实际的荷载传递特征。实例证明,计算结果与实际沉降观测值基本吻合。

Study on Settlement Calculation of Rigid Pile Composite Foundation

The composite pile foundation,which accounts for the bearing strength of pile and soil under pile cap together,is one type of pile foundations,and has been widely applied in coastal areas.The method of settlement calculating in the paper,combining the modified Geddes with the Boussinesq solution,is used to calculate the settlement of the rigid pile composite foundation in soft clay,in which such factors as the pile's loading transfer characteristics,skin friction,uniform load and so on are considered.From the calculation of a project,it is shown that the calculated results are in agreement with the test results.