Experimental study on load sharing characteristics of long-short CFG pile composite foundation adjacent to rigid retaining wall rotating about its base
Joint Authors
Uge, Bantayehu Uba
Guo, Yuan-Cheng
Source
Journal of Engineering Research
Issue
Vol. 11, Issue 1 B (31 Mar. 2023), pp.125-135, 11 p.
Publisher
Kuwait University Academic Publication Council
Publication Date
2023-03-31
Country of Publication
Kuwait
No. of Pages
11
Main Subjects
Abstract EN
Practicing geoengineers and researchers generally consider the load sharing behavior in multi-type pile composite foundation as an important design aspect.
On the other hand, due to urbanization, such foundation system in cities will inevitably appear next to supported excavation.
This paper discusses the result from relatively largescale indoor experiment conducted to investigate the load sharing behavior of loaded long-short CFG pile composite foundation behind a neighboring rigid retaining wall undergoing rotation around the bottom.
It was found that with progression of wall movement, the hidden load from soil displacement was borne by the piles with marked reduction in soil load sharing.
At the end of wall rotation, the percentage of long piles’ head load increment needed to arrive at a new static equilibrium was about 12.57~32.22% while the end bearing increased by more than 97%.
The consequences on the short piles, however, were manifested with an increasing pile head (13.42%) and toe (28.9%) load for the pile far from the wall whereas the closest one experienced a certain increment up to 15×10-4rad wall rotation and finally the head load and end bearing decreased to 8.28% and 12.63%, respectively.
The 3D numerical back analysis conducted using FE software ABAQUS yielded the pile – soil stress ratio lower than the value obtained from the experiment but provided great insight into pile settlement characteristics during wall rotation.
American Psychological Association (APA)
Uge, Bantayehu Uba& Guo, Yuan-Cheng. 2023. Experimental study on load sharing characteristics of long-short CFG pile composite foundation adjacent to rigid retaining wall rotating about its base. Journal of Engineering Research،Vol. 11, no. 1 B, pp.125-135.
https://search.emarefa.net/detail/BIM-1495430
Modern Language Association (MLA)
Uge, Bantayehu Uba& Guo, Yuan-Cheng. Experimental study on load sharing characteristics of long-short CFG pile composite foundation adjacent to rigid retaining wall rotating about its base. Journal of Engineering Research Vol. 11, no. 1 B (Mar. 2023), pp.125-135.
https://search.emarefa.net/detail/BIM-1495430
American Medical Association (AMA)
Uge, Bantayehu Uba& Guo, Yuan-Cheng. Experimental study on load sharing characteristics of long-short CFG pile composite foundation adjacent to rigid retaining wall rotating about its base. Journal of Engineering Research. 2023. Vol. 11, no. 1 B, pp.125-135.
https://search.emarefa.net/detail/BIM-1495430
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 132-135
Record ID
BIM-1495430