Sediment thickness in water pipes and hydraulic potential

Purpose: Calculation of the pipe hydraulic potential affected by sediments in water pipes. For gravity sewerage pipes of any material, a sludge layer is formed in the chute of pipes at a certain flow rate, which also changes the hydraulic potential of pipes affecting the actual hydraulic gradient, characterizing the period of operation of the drainage network before it needs to be hydrodynamically cleaned.

Methodology/approach: Dependences are suggested for the hydraulic calculation of metal water pipes and gravity drainage networks with internal deposits.

Research findings: The influence of the layer thickness of internal sediments in water metal pipes on their hydraulic potential is shown as well as the influence of this thickness in the tray part of gravity drainage networks on the hydraulic characteristics of pipes. The dependence shows the hydraulic curve slope of the drainage network relative to the sediment layer thickness in the tray part of pipes.

Practical implications: Instrumental control is proposed for the sediment layer thickness during the operation of water pipes and gravity drainage networks using the proposed device patented by the authors. 

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