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A Study of Manhole Bursting due to Surcharged Flow in Large Sewer System  

Choi, Sung-Mo ((주)방재안전기술원)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.4, no.2, 2004 , pp. 53-59 More about this Journal
Abstract
The mechanism of manhole bursting which occurs at excess rainfall events Is studied by using both the physical model and the numerical model (SWMM ; Storm Water Management Model). The result of numerical simulation to steep pressure rising agrees well with that of the physical model at the sewer system under surcharged flow. A cause of manhole bursting is an expansion and spout of the condensed all at manhole that results from the surcharged flow and press wave propagation caused by gate operation or closure of conduit at pumping station.
Keywords
SWMM; Surcharged Flow; Expansion and Spout of Condensed Air; Manhole Bursting;
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