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http://dx.doi.org/10.3741/JKWRA.2012.45.8.767

An Experimental Study for Reduction of Sedimentation Deposit in Combining Junction Manholes  

Kim, Jung-Soo (Department of Civil Engineering, Bucheon Univ.)
Kim, Kyoung-Beom (Department of Civil Engineering, Kyonggi Univ.)
Yoon, Sei-Eui (Department of Civil Engineering, Kyonggi Univ.)
Publication Information
Journal of Korea Water Resources Association / v.45, no.8, 2012 , pp. 767-782 More about this Journal
Abstract
Accumulation of sediment within pipelines, manholes, and other components of urban sewer systems can have a bad influence on sewerage arrangements, such as the resistance of the passage of flows, the cause of urban flooding and the premature operation of combined sewer overflows, and the inevitable pollution of watercourses. Therefore, it is necessary to understand the movements and sedimentation of sediment loads in combining junction manholes by experiments. In this study, hydraulic experimental apparatus which can change the manhole shapes (square, circle) were installed to measure deposited sedimentation quantity. The quantity of deposited sediment loads was measured by different conditions, for instance, the inflow conditions of sediment (continuous and certain period), the amount of inflow sediment, and the variation of inflow pipe of sediment. The combining junction manhole that was set up a inclined benching have the considerable effect of reduction of sedimentation in manholes without apropos of the change of manhole shapes. Therefore, the improved manhole could be increased the drainage capacity of sewerage arrangements in urban sewer systems.
Keywords
combining junction manhole; sediment load; sedimentation quantity; urban sewer system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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