期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：6
页码：9209
DOI：10.15680/IJIRSET.2015.0506077
出版社：S&S Publications
摘要：The foundation concept of piled rafts differs from traditional foundation design, where the loads areassumed to be carried either by the raft or by the piles, considering the safety factors in each case. Piled raftfoundations for important high-rise buildings have proved to be a valuable alternative to conventional pile foundationsor mat foundations. Piled raft foundations are increasingly being recognized as an economical and effective foundationsystem for tall buildings. A laboratory study was conducted on model piled raft foundationtoevaluatetheinfluenceofconfiguration of piles and number of piles ofpiledraft foundation on ultimate bearing capacity and settlementreduction. In this laboratory study, three sets of model piled raft foundation were studied consisting of 16, 24 and 32number of piles having l/d ratio equal to 40. In each sets, five different configurations of piles were tested. Pilediameter, pile length, type of soil and size of raft were kept constant. The results of the parametric study are presentedand a result for an optimized configuration of piled raft is arrived at. The results of tests conducted on raft and piled raftfoundation with different configurations of piles were compared in terms of ultimate bearing capacity, load sharingratio and settlement reduction ratio. It is concluded that the configurations of piles in a piled raft foundation hassignificant effect on ultimate bearing capacity, settlement reduction and load sharing ratio between the raft and piles.
关键词：Piled Raft Foundation; ultimate bearing capacity; load sharing ratio and settlement reduction ratio.
