洪水流量

The Huaihe Rivers floodway toward Huanghai Sea was not adequate in the past years. The huge runoff in the flood season had badly endangered the lives and fortunes of over 2000 million residents in downstream region of Huaihe River.

淮河下游洪水出路历来不足，在洪水季节，下泄流量激增，严重危及淮河下游地区2000多万人民的生命和财产安全。

Average flow within the prescribed time in flood calculations is worked out tising curve integral instead of arithmetic mean.

用曲线积分代替算术平均法来计算洪水流量演算中的时段平均流量，减小了时段△t对流量值的影响，使计算流量更接近实测值。

In light of the approximation of Muskingum flood calculation model,an improving model on average flow within prescribed time in flood calculation is presented using curve integral instead of general arithmetic mean.

针对马斯京根洪水演算模型的近似性问题，用曲线积分法改进了原模型中时段流量的简单算术平均值法，并利用连续性空间优化问题的蚁群算法对改进的马斯京根洪水演算模型进行参数最优估计，使演算流量更加接近实际。

In this paper,flood magnitude corresponding to any return period was estimated and analysed using statistical distribution wayse.g.Extreme Value(EVdistribution,Pearson TypeⅢdistribution and three-par...

以淮河王家坝水文站年最大洪峰流量系列为例，应用电子表格，采用极值分布、皮尔逊Ⅲ型分布和三参数对数正态分布等多种洪水频率分析方法进行洪水频率计算并加以对比研究，得出该站的不同重现期的洪峰流量，以供广大水文工作者参考。

By study of the statistic characteristics of flood forecasting errors and their confidence intervals for Nushi watershed at Sanhuajian of the Yellow River and on the basis of a comparison of the precision criterion currently used for flood forecasting with the result of the error confidence interval method, it is concluded that the error of flood forecasting is of the characteristic of skew probability distribution, and that the evaluated results of forecasting errors are different by the above two methods.

因此，本文在三花间伊河卢氏流域洪水预报的基础上研究了误差置信限及误差置信限评定方法，并将误差置信限评定结果与现行水情预报精度标准[1]评定结果进行了比较。1 现行洪水预报评定方法流域洪水预报精度评定内容包括洪峰流量、峰现时间和洪量等。洪水预报误差指标有绝对误差、相对误差和确定性系数3种。预报误差小于许可误差时为合格预报。

According to the altitude of slack water deposit termination which has fine indicative significance, the water level of a paleoflood can be determined and the discharge of the paleoflood can be calculated using hydraulic model.

同时根据符合条件特征的平流沉积物尖灭点高程，分析确定古洪水位，进而采用逐步回水曲线模型推求古洪水流量。

It is impossible for all bankfull floods to have the function of silting floodplain and scouring the channel. It deems through study that the main channel of the Yellow River will be obviously scoured only when flood discharge reaches to 1.5 times of bankfull discharge.

并非所有的漫滩洪水都具有淤滩刷槽作用，研究认为，对中低含沙洪水，只要当洪水流量达平滩流量的1.5倍以上，黄河主槽才出现明显冲刷。

In fact, the tributary acts as a conditioning reservoir, which is an important factor to sudden flood caused by dam collapse.

在处理洪水演进过程中支流与干流洪水的相互影响时，以前的模型仅将支流流量迭加到干流同时刻的流量上。

One of the main concerns of the highway engineer is to provide an adequate size structure, such that the waterway opening is sufficiently large to discharge the expected flow of water.

21公路工程师主要关心的问题之一是提供合适尺寸的构筑物，以便过水孔径足以排泄预期的洪水流量。

The design flood of Eco-industrial Parks in Handan is studied in the paper.According to characteristics of hydrology and geography in the area of Eco-industrial Parks,the basin is divided into four subareas and the design floods in different subzones are calculated using precipitation and runoff data.

根据工程所在流域实际地理、水文等特点，将流域分为4个分区，利用降雨和流量资料推求出工程所在区域不同分区的设计洪水，而后利用马斯京根法和流量过程叠加原理得到目标断面设计洪峰流量1 132 m3/s，该结果与历史洪水和以往设计成果进行对比验证，确定计算结果合理可靠，符合未来洪水变化情势。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。