Modelling sewer discharge via displacement of manhole covers during flood events using 1D/2D SIPSON/P-DWave dual drainage simulations

摘要: In urban areas, overloaded sewers may result in surcharge that causes surface flooding. The overflow from sewer systems mainly starts at the inlets until pressure head manhole is high enough to lift up its cover, which stage surcharged flow be discharged via gap between bottom of cover and ground surface. this paper, we propose a new approach simulate such dynamic coupled modelling. Two case studies are employed demonstrate differences linking model traditional simplifies process. results show capable describing physical phenomena when covers restrict drainage network reduce vice versa.