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Optimum Location and Angle of Inclination of Cut-off to Control Exit Gradient and Uplift Pressure Head under Hydraulic Structures

Journal: Jordan Journal of Civil Engineering (JJCE) (Vol.5, No. 3)

Publication Date:

Authors : ; ; ;

Page : 380-391

Keywords : Inclined cut-off; Optimum location; Hydraulic structures;

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Abstract

The work reported in this research presents numerical investigations on the effect of cut-off inclination angle on exit gradient and uplift pressure head under hydraulic structure and determines the optimum location and angle of inclination of cut-off. This problem is solved using the finite element method by using (ANSYS 11.0). It is concluded that using downstream cut-off inclined towards the downstream side with Ө less than 120º is beneficial in increasing the safety factor against the piping phenomenon. The results are evaluated graphically in non-dimensional form.

Last modified: 2014-10-11 01:05:04