南水北调与水利科技2016，Vol.14Issue(6)：154-158,5.DOI:10.13476/j.cnki.nsbdqk.2016.06.026
基于绕行系数的明渠输水工程生产桥优化布置决策模型
Decision-making model of optimal layout based on detouring coefficient for connection bridge in open channel water diversion project
摘要
Abstract
The connection bridge spacing will influence the water conveyance capacity of the middle route of South‐to‐North Wa‐ter Transfer .Therefore ,reasonable layout of the cross ditch bridge for residents on both sides should not only ensure the chan‐nel capacity but also cater for the daily needs of the residents at both sides .On the basis of the layout rationality analysis for the middle route of the South‐to‐North Water Diversion project ,this paper presented general principles of optimal layout about con‐nection bridge on long distance open channel .And then ,taking into account the influence of different characteristics of bridge spacing on channel capacity ,the maximum distance of the cross ditch bridge was obtained combining with the longest tolerable detouring distance for residents ,the connection bridge layout alternatives were drawn up ,the layout decision model for selecting the site of connection bridges was established based on the principle of minimum synthetic detouring coefficient ,and eventually the final specific location was determined .In the end ,the method was applied to the case of the middle route of South‐to‐North Water Transfer (from Beijing to Shijiazhuang) ,which was proved satisfying .Decision‐making model of layout scheme ,based on the principle of minimum synthetic detouring coefficient ,has suitable and extensive application in site optimization of the con‐nection bridge on long distance water transfer channel .关键词
明渠输水工程/生产桥/输水能力/最大绕行距离/绕行系数Key words
open channel water diversion project/connection bridge/water conveyance capacity/longest tolerable detouring dis-tance/detouring coefficient分类
交通运输引用本文复制引用
李霞,李少鹏,顾光富,秦丽娟,任喜龙..基于绕行系数的明渠输水工程生产桥优化布置决策模型[J].南水北调与水利科技,2016,14(6):154-158,5.基金项目
河北省教育厅项目（ZC2016126） FundFund of Hebei Province Department of Education （）
