河道行洪能力

汉江安康段城区河道行洪能力论证

The Argumentation of HanJiang River 's Flood Discharging Ability in Ankang Rural Part

水库下游河道行洪能力调查与评价方法的探讨

Investigation of the flood diversion capacity of watercourse in the lower reach of a reservoir and the evaluation method

本文论述了水库下游河道行洪能力调查的重要性、工作内容、调查方法和评价方法，可为我国其他水库下游河道的调查与评价提供参考。

This paper deals with the importance of investigation of the flood diversion capacity , working contents , investigation method and way of evaluation of the watercourse .

河口段的泥沙淤积阻碍通航，降低河道行洪能力，已经成为制约河口经济发展的主要因素之一。

Sedimentation has become one of the major factors that restrict the development of economy in estuaries because it blocks navigation and lowers the flow capacity . Estuaries are dynamic zones of mixing between freshwater and oceanic water .

20世纪90年代，由于黄河下游持续小水高沙，低水期延长，主槽发生严重的淤积，河道行洪能力明显下降。

Since 1990 , due to continuous low water level and high sand in the lower reaches of the river , a serious sedimentation resulted in the main river channel and flood discharge capacity of the river courses is decreased dramatically .

现针对北三河中下游河道现状行洪能力进行分析。

The analysis of this article will be carried out about the present ability and the lowlands in storing flood water .

由于种种自然原因，加上人为因素的不利影响，造成许多河道淤积严重，行洪能力较差，严重威胁人民的生命财产安全，急需采取裁弯、分洪等工程措施进行治理。

Many of their were severe siltation and not enough flood capacity in many rivers because of a variety of natural reasons and human activity , so that the life and property security of people were threatened .

但经过多年运用，河道淤积、堤防失修，加之投入不足，河道行洪能力下降，致使河道达不到原设计标准。

But after years of using , river sedimentation , dike lacking repair , combined with inadequate investment , decline in flood carrying capacity , resulted in the river less than the original design standards .