E3S Web Conf.
Volume 318, 2021Second International Conference on Geotechnical Engineering – Iraq (ICGE 2021)
|Number of page(s)||12|
|Section||Developments in Geotechnical Engineering|
|Published online||08 November 2021|
Settlement of Ring Footing Resting on Geocell Reinforced Sandy Soil under Cyclic Load
Civil Engineering Department, University of Technology-Iraq, Baghdad, Iraq
Ring footings are widely used as a foundation for water tanks, television antennas, silos, chimneys, oil storage tanks, etc. This paper is conducted to study the ring footing model's experimental cyclic behavior and circular footing resting on sandy soil reinforced with geocell. A group of ninety-six test models has been tested to investigate shallow footings' behavior beneath a cyclic loading of various loading rates. Four shapes of footing sand with three relative densities, two embedment depths of footing, two loading rates, and two widths of geocell were used. It was founded that as the footing depth increases, the settlement of soil due to cyclic loading decreases. Generally, when other variables are maintained to be the same, the footing bearing capacity increases when the foundation depth increases. The footing rebounds to some degree during the decay period of the load. The presence of geocell at the footing depth equals 100 mm will provide more improvement in all footing models more than using it at the surface, especially in ring 2 where the radius ratio is 0.4.
Key words: Reinforced sand / ring foundations / geocell reinforcement / cyclic loading
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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