Performance of piled raft foundation supported by either
connected or unconnected piles
الباحث الأول:
Athraa Mohammed Jawad Alhassani
الباحثين الآخرين:
Ala Nasir Aljorany
المجلة:
International Conference on Civil and Environmental Engineering Technologies
تاريخ النشر:
None
مختصر البحث:
Piled raft is commonly used as foundation for high rise buildings. The design concept
of piled raft foundation is to minimize the number of piles, and to utilize the entire bearing
capacity. High axial stresses are therefore, concentrated at the r…
Piled raft is commonly used as foundation for high rise buildings. The design concept
of piled raft foundation is to minimize the number of piles, and to utilize the entire bearing
capacity. High axial stresses are therefore, concentrated at the region of connection between the
piles and raft. Recently, an alternative technique is proposed to disconnect the piles from the raft
in a so called unconnected piled raft foundation UCPR, in which a compacted soil layer (cushion)
beneath the raft, is usually introduced. The piles of the new system are considered as
reinforcement members for the subsoil. In the current study, the behavior of both connected and
unconnected piled rafts systems has been studied experimentally. The effects of different factors,
such as; the piles number and configuration, on the load settlement behaviour and pile load
sharing are also investigated. The results indicate that when unconnected piles are used, the total
settlement of the piled raft system is significantly reduced, and the pile load sharing considerably
decrease, e.g., for piled raft with nine piles the total settlement has decreased by 35.6% and pile
load sharing has decreased by 20.9%.
