Achievement Summary
| Categories | |
|---|---|
| Purpose | Experimental study of manhole shape for designing high head inlet manholes in sewerage systems |
| Facilities available | Indoor Experiment Building |
| period | FY2016 (JPN) |
| Client | Tokyo Metropolitan Government Bureau of Sewerage |
Experimental Scene
hydraulic model experiment were conducted on a complex design in which three sewer branch lines flow into a high-head inlet manhole at different heights and angles. The experimental model was made of acrylic so that the flow conditions inside the manhole could be observed. Through the model experiments, the hydraulic functions of the high-head inlet manhole were verified and issues were identified, and a design improvement plan was proposed.
