Authors: Yong You Huali Pan Jinfeng Liu Guoqiang Ou
Publish Date: 2011/02/19
Volume: 8, Issue: 1, Pages: 103-107
Abstract
Debris flow drainage canal is one of the most widely used engineering measures to prevent and manage debris flow hazards The shape and the sizes of the crosssection are important parameters when design debris flow drainage canal Therefore how to design the appropriate shape and sizes of the crosssection so that the drainage canal can have the optimal drainage capacity is very important and few researched at home and abroad This study was conducted to analyze the hydraulic condition of a TrapezoidV shaped drainage canal and optimize its crosssection By assuming characteristic sizes of the crosssection the paper deduced the configuration parameter of the crosssection of a TrapezoidV shaped debris flow drainage canal By theory analysis it indicates that the optimal configuration parameter is only related to the side slope coefficient and the bottom transverse slope coefficient For this study the Heishui Gully a firstorder tributary of the lower Jinsha River was used as an example to design the optimal crosssection of the drainage canal of debris flow
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