摘要
针对两桥和三桥构成的复线桥,利用数学模型计算了不同桥间距和不同斜流交角情况下复线桥的水流流场,得到修建复线桥后通航净宽的减小值,提出计算净宽减小值的公式。结果表明桥洞长度及桥轴线法向与水流方向的夹角是影响巷道效应的主要因素。
For the divided roadway bridges consisting of two bridges and three bridges,using different mathematical model to calculate the distance between the bridges and flow field under different oblique flow angle,it got the reduced value of navigable clear width and put forward the formula for calculating net width.The results show that the bridge length and the angle of bridge axis direction and the flow are the main factors affecting channel effect.
出处
《吉林水利》
2011年第3期34-37,共4页
Jilin Water Resources
关键词
复线桥
有效航宽
巷道效应
divided roadway bridge
effective route width
channel effect
