Field Experiments on Load-Settlement Behaviors of Lightweight Foamed Soft Ground SCIE SCOPUS KCI

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Title
Field Experiments on Load-Settlement Behaviors of Lightweight Foamed Soft Ground
Alternative Title
Field Experiments on Load-Settlement Behaviours of Lightweight Foamed Soft Ground
Author(s)
Yea, Geu Guwen; Yoon, Gil Lim; Kim, Sun Bin; Kim, Hong Yeon
KIOST Author(s)
Yoon, Gil Lim(윤길림)
Alternative Author(s)
윤길림; 김선빈
Publication Year
2022-08
Abstract
In the construction of relatively light structures, lightweight foamed soil (LWFS) has been widely applied in soft foundation replacement for controlling the strength and unit weight of soft grounds, because deep ground improvement over the entire soft layer can be costly and time consuming. In this study, the stress-settlement behavior according to the replacement thickness was analyzed through a plate load test using bearing plates of various diameters on a soft ground replaced with an LWFS. Consequently, the bearing capacity increases as the plate diameter decreases. At a replacement thickness of 0.5 m, the final load applied to a plate with a diameter of 1,000 mm was reduced by 38% compared with that applied to a plate with a diameter of 300 mm, whereas the settlement increased by approximately 85%. When the replacement thickness was 1.5 m, in the test on a plate with a diameter of 300 mm, the final load increased by approximately 153% compared to that of the replacement thickness of 0.5 m. In addition, the settlement was 158% larger than that of the replacement thickness of 0.5 m. Consequently, the load to reach the same settlement increased with an increasing replaced depth.
ISSN
1226-7988
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/43075
DOI
10.1007/s12205-022-1524-0
Bibliographic Citation
KSCE Journal of Civil Engineering, v.26, no.8, pp.3370 - 3383, 2022
Publisher
대한토목학회
Keywords
Soft ground; Stress settlement; Lightweight foamed soil; Plate load test; Subgrade reaction
Type
Article
Language
English
Document Type
Article
Publisher
대한토목학회
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