TY - JOUR
T1 - Time-dependent deformation in high concrete-faced rockfill dam and separation between concrete face slab and cushion layer
AU - Zhang, Bingyin
AU - Wang, Jian-Guo
AU - Shi, R.
PY - 2004
Y1 - 2004
N2 - The contact behavior between concrete face slab and dam body is important to the safety of concrete-faced rockfill dams. The deficient of dam body and the separation of concrete slab from cushion layer during construction and in operation are the main concerns. This paper proposes a contact analysis method to study the effect of non-linearity and time-dependent deformation on the separation and the deficient. This contact analysis method regards dam body and concrete slab as two independent deformable bodies. These two deformable bodies follow Coulomb friction law at contact interface when they contact each other. The rockfill materials in dam body are assumed to be non-linear and time-dependent but concrete slab is elastic. As an example, a high concrete-faced rockfill dam of Tianshengqiao-I in China is numerically analyzed, and the numerical results are compared with in situ measurements. The results reveal that whether the deformation of dam body is non-linear or time-dependent, this contact analysis method can effectively simulate the separation between concrete slab and cushion layer without the drawbacks of interface element methods. (C) 2004 Elsevier Ltd. All rights reserved.
AB - The contact behavior between concrete face slab and dam body is important to the safety of concrete-faced rockfill dams. The deficient of dam body and the separation of concrete slab from cushion layer during construction and in operation are the main concerns. This paper proposes a contact analysis method to study the effect of non-linearity and time-dependent deformation on the separation and the deficient. This contact analysis method regards dam body and concrete slab as two independent deformable bodies. These two deformable bodies follow Coulomb friction law at contact interface when they contact each other. The rockfill materials in dam body are assumed to be non-linear and time-dependent but concrete slab is elastic. As an example, a high concrete-faced rockfill dam of Tianshengqiao-I in China is numerically analyzed, and the numerical results are compared with in situ measurements. The results reveal that whether the deformation of dam body is non-linear or time-dependent, this contact analysis method can effectively simulate the separation between concrete slab and cushion layer without the drawbacks of interface element methods. (C) 2004 Elsevier Ltd. All rights reserved.
U2 - 10.1016/j.compgeo.2004.07.004
DO - 10.1016/j.compgeo.2004.07.004
M3 - Article
SN - 0266-352X
VL - 31
SP - 559
EP - 573
JO - Computers and Geotechnics
JF - Computers and Geotechnics
IS - 7
ER -