本文提出一个半解析的方法分析单桩和群桩基础的沉降,地基土可以是任意层状的,并且可以是有限深的。单桩沉降采用荷载传递法计算,群桩中桩一桩相互作用采用近似解析法计算。通过与其它数值分析方法结果的对比,表明本文提出的方法与更严密的计算方法有很好的一致性,能大大减少计算量,可分析桩数较多的群桩基础。 In this paper, a semi-analytic method is proposed to analyze the settlement of single piles and pile group foundations. The foundation soil can be arbitrarily layered and can be of finite depth. Single pile settlement was calculated using the load transfer method, and the pile-piles interaction in a group pile was calculated using approximate analytical method. The comparison with the results of other numerical analysis methods shows that the method presented in this paper is in good agreement with the more rigorous calculation methods. It can greatly reduce the amount of calculation and can analyze the pile group with more piles.