摘要 合理地分析河道行洪能力,能够有效地减少洪灾损失并为河道管理者提供决策支持。在对北方地区马颊河流域暴雨洪水分析的基础上,探讨“设计暴雨推求设计洪水方法”在该地区的适用性,并基于MIKE11构建马颊河莘县段一维水动力学模型,对比分析在设计标准“1961年雨型”洪水和1971年典型洪水下马颊河莘县段的河道洪水演进情况,根据河道水面线变化及相应最高水位与堤顶的距离,分析洪水上滩情况,评价河道行洪能力。结果表明:马颊河莘县段基本可达到“1961年雨型”防洪标准,仅有少数低洼河段出现洪水漫滩现象,需对相应堤防进行加高防护处理;在1971年典型洪水下,洪水在主槽内演进,不会出现洪水漫滩现象。 Reasonably analyzing flood carrying capacity of channel can effectively reduce flood losses and provide favorable decision support for river managers.based on the analysis of rainstorm and flood of Majia River basin in northern China,this paper discussed the applicability of“the method of deducing design flood from design rainstorm”in this area,constructed a one⁃dimensional hydrodynamic model for Majia River in Shenxian section based on MIKE11 and compared and analyzed the river flood evolution in the design standard of“rain⁃type of 1961”flood and the typical flood in 1971.Through the change of river water surface profile and the distance between the corresponding high⁃est water level and the dike top,it analyzed the situation of flood on the beach and evaluated the flood passing capacity of the river.The re⁃sults show that the Majia River in Shenxian section can basically meet the flood control standard of“rain⁃type of 1961”,only a few low⁃lying sections have flooding problem and the corresponding levees need to be heightened for protection;the flood flows in the main channel and the floodplain will not be flooded under the conditions of the typical flood in 1971.
出处 《人民黄河》 CAS 北大核心 2021年第5期67-70,79,共5页 Yellow River
基金 国家重点研发计划项目(2017YFC0403504) 水利部技术示范项目(SF-201803) 山东省水利科研项目(SDSLKY201809)。
关键词 河道行洪 设计暴雨分析 MIKE11 马颊河莘县段 river course flood passing design storm analysis MIKE11 Majia River in Shenxian section
