A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behavior of a Concrete-Face Rockfill Dam Cutoff Wall Considering the Foundation Seepage–Creep Coupling Effect
https://orcid.org/0000-0001-7820-7237
The concrete cutoff wall is the main seepage control measure for concrete-face rockfill dams (CFRDs) constructed on alluvium foundations. The cutoff walls are concealed structures, their working behavior influenced by alluvium foundation deformation and the seepage effect as critical factors. Cutoff wall behavior directly affects the foundation seepage control effect and the dam’s structural safety. The behavior of concrete cutoff walls in CFRDs built on alluvium foundations was investigated in this study through statistical analysis and numerical simulation. The cutoff wall behavior was statistically reviewed based on deformation data from several case histories. A numerical calculation model for the mechanical behavior of the cutoff wall, considering the foundation seepage–creep coupling effect, was established. A nine-parameter creep model was adopted to simulate the foundation creep behavior. The foundation seepage–creep coupling effect was simulated using a hydromechanical coupling analysis method. The cutoff wall behavior was analyzed using a combination of measured data and numerical results. The effects of the foundation seepage–creep coupling effect, dam construction speed, cutoff wall construction sequence, and depth of the cutoff wall behavior are also discussed.
Behavior of a Concrete-Face Rockfill Dam Cutoff Wall Considering the Foundation Seepage–Creep Coupling Effect
https://orcid.org/0000-0001-7820-7237
The concrete cutoff wall is the main seepage control measure for concrete-face rockfill dams (CFRDs) constructed on alluvium foundations. The cutoff walls are concealed structures, their working behavior influenced by alluvium foundation deformation and the seepage effect as critical factors. Cutoff wall behavior directly affects the foundation seepage control effect and the dam’s structural safety. The behavior of concrete cutoff walls in CFRDs built on alluvium foundations was investigated in this study through statistical analysis and numerical simulation. The cutoff wall behavior was statistically reviewed based on deformation data from several case histories. A numerical calculation model for the mechanical behavior of the cutoff wall, considering the foundation seepage–creep coupling effect, was established. A nine-parameter creep model was adopted to simulate the foundation creep behavior. The foundation seepage–creep coupling effect was simulated using a hydromechanical coupling analysis method. The cutoff wall behavior was analyzed using a combination of measured data and numerical results. The effects of the foundation seepage–creep coupling effect, dam construction speed, cutoff wall construction sequence, and depth of the cutoff wall behavior are also discussed.
Behavior of a Concrete-Face Rockfill Dam Cutoff Wall Considering the Foundation Seepage–Creep Coupling Effect
https://orcid.org/0000-0001-7820-7237
The concrete cutoff wall is the main seepage control measure for concrete-face rockfill dams (CFRDs) constructed on alluvium foundations. The cutoff walls are concealed structures, their working behavior influenced by alluvium foundation deformation and the seepage effect as critical factors. Cutoff wall behavior directly affects the foundation seepage control effect and the dam’s structural safety. The behavior of concrete cutoff walls in CFRDs built on alluvium foundations was investigated in this study through statistical analysis and numerical simulation. The cutoff wall behavior was statistically reviewed based on deformation data from several case histories. A numerical calculation model for the mechanical behavior of the cutoff wall, considering the foundation seepage–creep coupling effect, was established. A nine-parameter creep model was adopted to simulate the foundation creep behavior. The foundation seepage–creep coupling effect was simulated using a hydromechanical coupling analysis method. The cutoff wall behavior was analyzed using a combination of measured data and numerical results. The effects of the foundation seepage–creep coupling effect, dam construction speed, cutoff wall construction sequence, and depth of the cutoff wall behavior are also discussed.
Behavior of a Concrete-Face Rockfill Dam Cutoff Wall Considering the Foundation Seepage–Creep Coupling Effect
Int. J. Geomech.
Wen, Lifeng (author) / Cao, Weifeng (author) / Li, Yanlong (author)
2023-05-01
Article (Journal)
Electronic Resource
English
Concrete-pile cutoff wall at the foundation of the rockfill dam of the erevansk hydroelectric plant
| Springer Verlag | 1968
Concrete-pile cutoff wall at the foundation of the rockfill dam of the erevansk hydroelectric plant
| Online Contents | 1968
Dam Safety Evaluation and Seepage Problems for a Concrete-Face Rockfill Dam
| British Library Conference Proceedings | 1991