Hydraulics and deposit evolution in sewers
HEMMERLE ; RANDRIANARIMANANA ; JOANNIS ; LARRARTE
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
HEMMERLE ; RANDRIANARIMANANA ; JOANNIS ; LARRARTE
Résumé / Abstract
Sewer deposit is a complex mix of mineral and organic materials whose dynamics remain poorly understood to such a point that the transport formulas, mainly developed for rivers sediment, are still missing accuracy. IFSTTAR researches aims at helping networks managers by investigating hydraulics and solid transport occurring in urban sewer networks. The current paper presents an experimental study of the influence of the hydraulic parameters on the deposit bathymetry. Various ultrasonic devices are used in the study to measure the transversal variation of the deposit and the velocity profiles sewer. The results show the relation between the deposit height and the bottom shear stress and will be presented and discussed in paper. In similar cases studies (hydraulics conditions), results of bottom shear stress profiles are different.
