Banasiak Robert
Hydraulics Laboratory, Ghent University, Ghent, Belgium.
Water Sci Technol. 2008;57(11):1743-8. doi: 10.2166/wst.2008.287.
This paper investigates in-sewer sediment deposit behaviour and its influence on the hydraulic performance of sewer pipes. This evaluation is based on experimental results regarding the mobility of non-cohesive and partly cohesive deposits in a partially full circular pipe. The focus of these tests is on the development of bed forms and friction characteristics. In particular, it is investigated to what extent the bed forms from the non-cohesive and (partly) cohesive sediments affect a sewer's discharge capacity. Based on the laboratory study results and on the existing criteria for sewer design, a generic assessment of a sewer's hydraulic performance is made. The relative discharge factor for a pipe with sediment deposit is analysed in terms of the thickness and roughness of the deposit.
本文研究了污水管道内沉积物的沉积行为及其对污水管道水力性能的影响。该评估基于关于部分充满水的圆形管道中非粘性和部分粘性沉积物流动性的实验结果。这些试验的重点是床面形态的发展和摩擦特性。特别研究了非粘性和（部分）粘性沉积物形成的床面形态对污水管道排水能力的影响程度。基于实验室研究结果和现有的污水管道设计标准，对污水管道的水力性能进行了综合评估。根据沉积物的厚度和粗糙度，分析了有沉积物管道的相对排放系数。
