Results 11 to 20 of about 578 (183)
Rockfill materials and foundation continuously interact with each other during lifetime of the rockfill dams. This interaction condition alters the viscoplastic behaviour of these dams in time.
Memduh Karalar, Murat Çavuşli
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Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown
Earth and rockfill dams face a variety of loading conditions during lifetime. One of the most critical loading conditions is the rapid drawdown of water level after steady state conditions.
Sirwan Gh. Salim, Krikar M. G. Noori
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Study on compound structure of concrete gravity dam-face rockfill dam
In view of the outstanding problems in super high concrete face rockfill dams, such as large deformation of concrete face plate, easy opening of concrete face joint and non-maintenance of bottom face plate, etc., a new type of dam body structure suitable
LIU Jing, LU Xi, DANG Faning
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A three-dimensional elasto-plastic dynamic response procedure for concrete-faced rockfill dams
Equivalent linear dynamic analysis is the primary method of analysis for concrete-faced rockfill dams during earthquake. However, this method cannot be directly used to estimate permanent deformation during earthquake, which is important to evaluate the ...
Bin Xu, Yang Zhou, Jingmao Liu, Xiang Yu
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The earth-rockfill dam construction in China has been greatly improved in the past few decades. However, with the extension of the service period of the earth-rockfill dam, its underlying culvert pipe diseases, especially leakage phenomenon, need to be ...
SONG Zilong +3 more
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A simulation-optimization approach to determine optimum features of detention rockfill dams under flood condition [PDF]
Detention rockfill dams are one of the structural methods that can control flood risks with no impermeable core or membrane. These dams decrease the maximum discharge of flood hydrograph and postpone the time of its occurrence reducing life and financial
Nafiseh Khoramshokooh +2 more
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Unified modeling behavior of rockfill materials along different loading stress paths
Rockfill materials used for dam construction show obvious stress path dependency during construction process. The constitutive model for rockfill materials are mainly established based on conventional triaxial test.
Shihai Bian +4 more
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Deformation of rockfill in bodies of rockfill dams
Introduction. The main factor determining the stress-strain state (SSS) of rockfill dam with reinforced concrete faces is deformability of the dam body material, mostly rockfill. However, the deformation properties of rockfill have not been sufficiently studied yet for the time being due to technical complexity of the matter, Materials and methods. To
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ABSTRACT The reliability of flood event simulations is a crucial aspect in terms of saving lives. The worst flood scenarios derive from possible dam failures. For earthen dams, the breaching mechanism, triggered by overtopping or piping, is affected by several modelling uncertainties, which propagate downstream and may influence flood hazard mapping ...
Andrea Antonella Graziano +2 more
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Extrapolation-Based Scale Effect Model for Granular Heap Modulus
The numerical analysis was used to predict the rockfill dam displacement, and the model parameters were calibrated using the triaxial experiments on scale-down rockfill samples. Due to the scale effect of rockfill material, the displacements were usually
Zhigang Ma, Shuaifeng Wu, Ran Wei
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