南水北调与水利科技2012，Vol.10Issue(1)：139-141,3.DOI:10.3724/SP.J.1201.2012.01139
HEC-RAS模型在密江特大桥防洪评价中的应用
Application of HEC-RAS Model for Evaluation of Flood Control of Mijiang Super-long Bridge
邓显羽 1李文枫2
作者信息
- 1. 中水东北勘测设计研究有限公司科学研究院,长春130021
- 2. 吉林省电力勘测设计院,长春130000
- 折叠
摘要
Abstract
This paper introduces the basic principles and main procedures of the HEC-RAS model in calculating the bridge backwater. The HEC-RAS model is then used in the calculation of the Mijiang super-long bridge backwater at the Jilin-Hunchun high-speed railway for passenger traffic. Different scenarios of the frequency of flood events are simulated, including once in 300 years,once in 100 years,once in 50 years,once in 20 years,and once in 10 years. The river water surface lines before and after the bridge construction are simulated under the different scenarios of flood events,and thus the block water height and backwater height of the Mijiang bridge are obtained. The results show that the HEC-RAS model is convenient and practical in analyzing and calculating the effects of the bridge backwater height, and it has engineering applicability and can provide reliable references for decision-making in flood control projects.关键词
HEC-RAS模型/密江/桥梁壅水/防洪工程/影响评价Key words
HEC-RAS model/ Mijiang/ bridge backwater /flood control projects/ impact assessment分类
建筑与水利引用本文复制引用
邓显羽,李文枫..HEC-RAS模型在密江特大桥防洪评价中的应用[J].南水北调与水利科技,2012,10(1):139-141,3.
