Abstract: Two types of pile group settlement prediction methods are presented in this paper based on the densely spaced and sparsely spaced pile groups. The techniques for the sublayer division and the selection of settlement and induced effective stress calculation points are summarized in the paper. The thickness of compressible soil layer estimation, settlement pattern for the long and sparsely spaced pile groups as well as the settlement reduction methods are also summarized.

Key words: Piled Foundations, Sparely Spaced Pile Groups, Induced Effective Stress, Total Settlement, Summation of Settlement in Sublayers