Abstract
In this paper, the effect of the scoured beds on the characteristics of seepage underneath heading up structures, has been studied numerically using Finite Element technique. Five assumptions of the eroded beds have been considered to achieve the behaviour of flow under the structure. The three and four node isoparametric elements have been illustrated the uplift pressure acting on the floor of the structure while the rate of seepage flow increases. The floor creep velocities and exit gradients for the studied cases have been illustrated.
Highlights
In t his pa pe r, the effect of t he sco ur ed beds on the characteristics of seepage undernea t h headi ng up struc tures, has been studied numer ica l ly us i ng Fin ite El ement techn i q ue
Ho we v e r, i n sp i te of a l l care
The tall e rosi on c ha nge s the bo undar y o f the domain a nd resu l t s in redistr i.but i on of pressur es under t he apron o f the we ir and the exi t gradient i n t he downstre am
Summary
In t his pa pe r , the effect of t he sco ur ed beds on the characteristics of seepage undernea t h headi ng up struc tures , has been studied numer ica l ly us i ng Fin ite El ement techn i q ue. The shape and extent of sco ur d~pend upon th e F roude nu~ber of flow o v er t he we ir [2~.3>41.
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