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| 基于桥墩历史水痕与气象预报的中小桥水害预测 | |
| 引用本文： | 文雨松,李整,邹希云,刘小丰.基于桥墩历史水痕与气象预报的中小桥水害预测[J].铁道学报,2010,32(2). |
| 作者姓名： | 文雨松 李整 邹希云 刘小丰 |
| 作者单位： | 1. 中南大学,土木建筑学院,湖南,长沙,410075 2. 益阳市气象局,湖南,益阳,413000 3. 广州铁路(集团)公司,,湖南,衡阳,421000 |
| 摘 要： | 将中小桥山洪水害作为研究对象,以人工神经网络中的BP网络为工具,将桥墩历史上的数次洪水水痕高程和产生当次洪水的雨量记录作为数据基础,提出一种流量计算和预报既有中小桥水害的方法。这种方法物理意义明确。在计算中小流域流量时,传统的单位线法、推理公式法、铁路设计院法等方法将流域和桥渡看成两个系统,雨量通过"流域"系统后产生流量,流量再通过"桥渡"系统后才产生洪水水位。本文方法将"流域"和"桥渡"看成一个系统,直接建立起输入(雨量)与输出(水位)的数学关系,因此,不需要勘测流域面积、主河道长度及平均坡度等工作,可以节约大量的人力物力。多座桥梁的具体应用表明,本文方法具有较高的准确度。 |
| 关 键 词： | 气象预报 桥墩水痕 人工神经网络 流量计算 |
Prediction of Flood Disaster of Middle & Small Bridges Based on Water Traces on Piers and Meteorological Forecast |
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| WEN Yu-song,LI Zheng,ZOU Xi-yun,LIU Xiao-feng.Prediction of Flood Disaster of Middle & Small Bridges Based on Water Traces on Piers and Meteorological Forecast[J].Journal of the China railway Society,2010,32(2). | |
| Authors: | WEN Yu-song LI Zheng ZOU Xi-yun LIU Xiao-feng |
| Institution: | WEN Yu-song1,LI Zheng1,ZOU Xi-yun2,LIU Xiao-feng3(1.School of Civil , Architectural Engineering,Central South University,Changsha 410075,China,2.Meteorological Bureau of Yiyang Municipality,Yiyang 413000,3.Guangzhou Railway Group Company,Hengyang 421000,China) |
| Abstract: | Using the BP network of the artificial neural network,a new method is put forward to calculate the rate of flow and predict the flood disaster for existing middle and small bridges on the basis of numbers of heights of water traces in the history of the piers and the rainfall of the flood to be predicted.This method has clear physical meaning.In calculation of the flow in small and medium-sized river basins,the traditional methods,such as the unit hydrograph method,reasoning formula method and methods of ra... |
| Keywords: | meteorological forecast water traces artificial neural network flow calculation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |