Numerical analysis of behavior of environmental-responsive pile foundations and ground deformation in extreme regions

Recently, many of new constructions or replacements of infrastructures are taking place at extreme regions, such as permafrost area or deserts. The extreme regions are largely classified into cold and hot regions. In these regions, climatic, environmental, and geographical factors cause ground defor...

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Bibliographic Details
Main Authors: Shin, Sehee, Lee, Haklin, Bae, Jonghwan, Lee, Jonwon, Kim, Dongwook
Format: Conference Proceeding
Language:English
Subjects:
Deformation effects
Differential settlement
Friction reduction
Modulus of elasticity
Negative skin friction
Numerical analysis
Permafrost
Pile foundations
Structural stability
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Summary:Recently, many of new constructions or replacements of infrastructures are taking place at extreme regions, such as permafrost area or deserts. The extreme regions are largely classified into cold and hot regions. In these regions, climatic, environmental, and geographical factors cause ground deformation such as ground settlement. Ground deformation influences behavior of foundations and stability of the super structures. Especially plants are more critical to ground deformation because these facilities are very sensitive to differential settlement or vibration due to improper foundation designs. In this study, a new type of pile foundation named the environment-responsive pile foundation(ERPF) was verified in order to reduce the negative effect with ground deformation. The verification was performed through numerical analysis, as a result of numerical analysis, the positive effects of environmental-responsive pile foundations against ground deformation was identified. Additionally, the location and properties of the reinforcement were adjusted to maximize the effect of ERPF. Consequently, a low modulus of elasticity of the pile reinforcement material have the effects of reducing negative skin friction force within pile foundation.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0075182