Abstract
In this paper, we investigate the mechanical behaviour of a compressed air energy storage (CAES) pile through finite element analyses. A simple hypoplastic constitutive model is used for the soil surrounding the pile. The analyses are carried out on two numerical models, namely a plane-strain model and an axisymmetric model. The numerical results show that the internal pressure of the pile has only minor influence on the stress state in the surrounding soil. The radial deformation around the pile is much smaller than the vertical deformation during the pressurization. Moreover, an increase of the internal pressure induces pile expansion around a neutral point in middle of the pile. This gives rise to relative displacement at the pile-soil interface, leading to upward slip at the pile head and downward slip at pile tip. The shear stress between pile and soil is also considered.
| Original language | English |
|---|---|
| Title of host publication | Desiderata Geotechnica |
| Editors | Wei Wu |
| Publisher | Springer Verlag |
| Pages | 242-249 |
| Number of pages | 8 |
| ISBN (Print) | 9783030149864 |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
| Event | China-Europe Conference on Geotechnical Engineering, 2018 - Vienna, Austria Duration: Aug 13 2018 → Aug 16 2018 |
Publication series
| Name | Springer Series in Geomechanics and Geoengineering |
|---|---|
| ISSN (Print) | 1866-8755 |
| ISSN (Electronic) | 1866-8763 |
Conference
| Conference | China-Europe Conference on Geotechnical Engineering, 2018 |
|---|---|
| Country | Austria |
| City | Vienna |
| Period | 8/13/18 → 8/16/18 |
Fingerprint
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Mechanics of Materials
Cite this
Numerical Simulation of a CAES Pile with Hypoplasticity. / Wu, Wei; Wang, Shun; Xu, Guofang; Qi, Jilin; Zhang, Dichuan; Kim, Jong Ryeol.
Desiderata Geotechnica. ed. / Wei Wu. Springer Verlag, 2019. p. 242-249 (Springer Series in Geomechanics and Geoengineering).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Numerical Simulation of a CAES Pile with Hypoplasticity
AU - Wu, Wei
AU - Wang, Shun
AU - Xu, Guofang
AU - Qi, Jilin
AU - Zhang, Dichuan
AU - Kim, Jong Ryeol
PY - 2019/1/1
Y1 - 2019/1/1
N2 - In this paper, we investigate the mechanical behaviour of a compressed air energy storage (CAES) pile through finite element analyses. A simple hypoplastic constitutive model is used for the soil surrounding the pile. The analyses are carried out on two numerical models, namely a plane-strain model and an axisymmetric model. The numerical results show that the internal pressure of the pile has only minor influence on the stress state in the surrounding soil. The radial deformation around the pile is much smaller than the vertical deformation during the pressurization. Moreover, an increase of the internal pressure induces pile expansion around a neutral point in middle of the pile. This gives rise to relative displacement at the pile-soil interface, leading to upward slip at the pile head and downward slip at pile tip. The shear stress between pile and soil is also considered.
AB - In this paper, we investigate the mechanical behaviour of a compressed air energy storage (CAES) pile through finite element analyses. A simple hypoplastic constitutive model is used for the soil surrounding the pile. The analyses are carried out on two numerical models, namely a plane-strain model and an axisymmetric model. The numerical results show that the internal pressure of the pile has only minor influence on the stress state in the surrounding soil. The radial deformation around the pile is much smaller than the vertical deformation during the pressurization. Moreover, an increase of the internal pressure induces pile expansion around a neutral point in middle of the pile. This gives rise to relative displacement at the pile-soil interface, leading to upward slip at the pile head and downward slip at pile tip. The shear stress between pile and soil is also considered.
UR - http://www.scopus.com/inward/record.url?scp=85065767553&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85065767553&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-14987-1_29
DO - 10.1007/978-3-030-14987-1_29
M3 - Conference contribution
SN - 9783030149864
T3 - Springer Series in Geomechanics and Geoengineering
SP - 242
EP - 249
BT - Desiderata Geotechnica
A2 - Wu, Wei
PB - Springer Verlag
ER -