Deformation Behavior of Concrete Face Slab Having Its Lower Part Deeply Seated on Bedrock
In designing a CFRD,watertightness,durability and crack control of concrete face slab are the primary concerns for its proper performance during construction,impounding or operation.While it is considered that deformation of concrete face slab depends on the geometry and dimension of foundation rock near plinth,and the stiffness between bedrock and dam body,no evidence of the dependency of deformation on them has been given so far.In this study,large triaxi-al tests were conducted to determine the strength and deformation properties of gravel and rockfill materials to be used as main fill zones of the dam.Physical modelling (centrifuge test) and numerical analysis were performed to investigate the effects of geometrical conditions,and difference of stiffness between fill materials and bedrock on deformation behavior of the slab.From the results of centrifuge tests and finite element analysis for model CFGD dam,as expected,it was known that during full reservoir,excessive tensile stresses within the slab are mobilized near the shoulder of additionallyexcavated slope for plinth,where the foundation rock level intersects the excavation slope.
CFGD deformation of face slab stiffness centrifuge test numerical analysis
Dong-Hoon Shin Eun-Sang Im Seong-Eun Cho Han-Gyu Park Wan-Ho,Lee
Principal Researcher,K-water research Institute,K-water Senior Researcher,K-water research Institute,K-water Research Fellow,K-water research Institute,K-water Director,K-water research Institute,K-water
国际会议
The 1st International Symposium on Rockfill Dams(第一届堆石坝国际研讨会)
成都
英文
317-324
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）