Effect of pile's number on the behavior of piled raft foundation
Joint Authors
Wahid, Muhannad Q.
Hadi, Diya H.
Fattah, Muhammad Yusuf
Source
Engineering and Technology Journal
Issue
Vol. 39, Issue 7 (31 Jul. 2021), pp.1080-1091, 12 p.
Publisher
Publication Date
2021-07-31
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Topics
Abstract EN
This paper introduces an experimental research on the behavior of the piled raft foundation (PRF) in sand of two states (loose and medium sand).
A small model has been tested in a soil container and the vertical load was applied to the foundation through a pneumatic jack.
The settlement of the foundation was measured using a displacement transducer; three sensors were attached to the pile heads to measure the axial load borne in a group by each pile by the Arduino data logger.
The laboratory experiments were carried out on models of (1 pile), (1x2), (1x3), (2x3), (3 x3), (3 piles triangular), (4 piles diamond), (5 piles), and (9 pile circle), as well as to tests on an unpiled raft.
Test variables were pile length, number of piles, and sand density.
It is noticed that when the piles increased to nine piles in the group, the bearing capacity increased by 40% .
The effect starts to increase when one pile is just placed under the raft as the bearing capacity of the piled raft increased by 3% and 7% when the pile length is 15D and, 20D, respectively.
The reduction in the settlement is also observed to be smaller and no economic advantage is achieved with more increase in the number of piles.
If the number of piles reaches (6) piles, the influence of the piled raft on settlement reduction This paper introduces an experimental research on the behavior of the piled raft foundation (PRF) in sand of two states (loose and medium sand).
A small model has been tested in a soil container and the vertical load was applied to the foundation through a pneumatic jack.
The settlement of the foundation was measured using a displacement transducer; three sensors were attached to the pile heads to measure the axial load borne in a group by each pile by the Arduino data logger.
The laboratory experiments were carried out on models of (1 pile), (1x2), (1x3), (2x3), (3 x3), (3 piles triangular), (4 piles diamond), (5 piles), and (9 pile circle), as well as to tests on an unpiled raft.
Test variables were pile length, number of piles, and sand density.
It is noticed that when the piles increased to nine piles in the group, the bearing capacity increased by 40% .
The effect starts to increase when one pile is just placed under the raft as the bearing capacity of the piled raft increased by 3% and 7% when the pile length is 15D and, 20D, respectively.
The reduction in the settlement is also observed to be smaller and no economic advantage is achieved with more increase in the number of piles.
If the number of piles reaches (6) piles, the influence of the piled raft on settlement reduction disappears.
American Psychological Association (APA)
Hadi, Diya H.& Wahid, Muhannad Q.& Fattah, Muhammad Yusuf. 2021. Effect of pile's number on the behavior of piled raft foundation. Engineering and Technology Journal،Vol. 39, no. 7, pp.1080-1091.
https://search.emarefa.net/detail/BIM-1281536
Modern Language Association (MLA)
Hadi, Diya H.…[et al.]. Effect of pile's number on the behavior of piled raft foundation. Engineering and Technology Journal Vol. 39, no. 7 (2021), pp.1080-1091.
https://search.emarefa.net/detail/BIM-1281536
American Medical Association (AMA)
Hadi, Diya H.& Wahid, Muhannad Q.& Fattah, Muhammad Yusuf. Effect of pile's number on the behavior of piled raft foundation. Engineering and Technology Journal. 2021. Vol. 39, no. 7, pp.1080-1091.
https://search.emarefa.net/detail/BIM-1281536
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 1090-1091
Record ID
BIM-1281536