Abstract
ABSTRACT A boundary element analysis based on an elastic theory is performed to analyse the behaviour of piled raft foundations subjected to vertical load. Characteristics of settlement and load transfer for piled raft foundations whose raft rests on a homogeneous isotropic elastic half-space soil are contrasted with free-standing pile groups and single piles. The critical length of pile groups for a vertical loading (the length beyond which settlement shows little further decrease) is longer than that of single piles whose dimensions are the same as the piles in the groups. The reduction of the settlement caused by the presence of the raft is very small, although the raft transmits 20-40% of the applied load direct to the soil. A significant difference of pile load is recognized at the upper part of the shafts between two kinds of pile group with and without raft, and only small difference is found at the remaining part of the shafts. The ratio of long-term settlement to total final settlement of pile groups is greater than that of single piles. The contact earth pressure on the raft is relatively uniform in the inside area surrounded by piles.
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
