Conformal analysis of seepage below a hydraulic structure with an inclined cutoff

✍ Scribed by Abbas Z. Ijam

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 364 KB
• Volume: 18
• Category: Article
• ISSN: 0363-9061
• DOI: 10.1002/nag.1610180505

✦ Synopsis

Conformal mapping techniques are used to obtain an exact solution for seepage flow below a hydraulic structure founded on permeable soil of infinite depth for a flat floor with an inclined cut-off at the downstream end. Results are presented for different values of b/s and 8. The exit gradient decreases considerably along a distance beyond the floor end with an increase in cut-off inclination. The maximum exit gradient decreases for B = 10,20 and 30 and starts increasing for B = 45 ' . The uplift pressure decreases as 8 increases. It is concluded that using an inclined cut-off increases the factor of safety in design against uplift and piping.