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Characteristics of above-water sluicing of sand into riprap
Conclusions Above-water sluicing of coarse-fraction riprap with sand is characterized by radial spreading of the mixture and partial filling of the pore channels by the seepage flow at the contact with the filled-in body.For the indicated conditions a relation is proposed for determining the gradient of the filled-in body, using data of laboratory experiments, which showed a satisfactory agreement with the results of full-scale measurements during sluicing of the rockfill dam of the Shirokov station. Knowledge of the magnitude of this gradient will help determine the rational disposition of sluicing points.In the case of steep gradients of the filled-in body the seepage flow is in a energetically turbulent state. The transition of seepage to a tranquil state is accompanied by the occurrence in the riprap of an incomplete hydraulic jump, compacting the sand in the rock voids during sluicing.
Characteristics of above-water sluicing of sand into riprap
Conclusions Above-water sluicing of coarse-fraction riprap with sand is characterized by radial spreading of the mixture and partial filling of the pore channels by the seepage flow at the contact with the filled-in body.For the indicated conditions a relation is proposed for determining the gradient of the filled-in body, using data of laboratory experiments, which showed a satisfactory agreement with the results of full-scale measurements during sluicing of the rockfill dam of the Shirokov station. Knowledge of the magnitude of this gradient will help determine the rational disposition of sluicing points.In the case of steep gradients of the filled-in body the seepage flow is in a energetically turbulent state. The transition of seepage to a tranquil state is accompanied by the occurrence in the riprap of an incomplete hydraulic jump, compacting the sand in the rock voids during sluicing.
Characteristics of above-water sluicing of sand into riprap
Izbash, S. V. (author) / Leleeva, N. M. (author) / Bazymnyi, V. V. (author)
1975
Article (Journal)
English
BKL:
56.30
Wasserbau
Local classification TIB:
770/6550/8000
Characteristics of above-water sluicing of sand into riprap
| Springer Verlag | 1975
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