摘要
本文对建国四十多年来应用于公路桥孔的计算方法作了简单回顾,对1991年《公路桥位勘测设计规程》(修订送审稿)中的两种方法以及两种地区性的方法结合《水法》做了对比讨论,并对九十年代这个领域中的工作做了几点建议。
In this paper, a simple review about the calculation of highway bridge opening in the last 40 years is present. The two methods written in the Specification for the Highway Bridge Site Reconnaissance Survying and Design ( manuscript for examine and approve, 1991) and two regional methods are discussed comparatively according to Water Law. Some proposals are made for the works in this field in the coming decade.
关键词
桥
孔径
冲刷系数
单宽流量
bridge aperture
coefficient of scour
flow rate per unit width
width of river channel
