[1]吕大为,周亚军,张孟颖,等.新沂河口分流比影响因素数值模拟[J].江苏水利,2020,(07):28-32+47.
　LV Dawei,ZHOU Yajun,ZHANG Mengying,et al.Numerical simulation of the influencing factors of diversion ratio in Xinyi estuary[J].JIANGSU WATER RESOURCES,2020,(07):28-32+47.
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新沂河口分流比影响因素数值模拟()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年07期
页码:
28-32+47
栏目:
水利规划与设计
出版日期:
2020-07-25

文章信息/Info

Title:
Numerical simulation of the influencing factors of diversion ratio in Xinyi estuary
文章编号:
1007-7839(2020)07-0028-05
作者:
吕大为;  周亚军;  张孟颖;  夏 季
江苏省水利勘测设计研究院有限公司, 江苏 扬州 225127
Author(s):
LV Dawei; ZHOU Yajun; ZHANG Mengying; XIA Ji
Jiangsu Provincial Water Conservancy Survey and Design Institute Co., Ltd., Yangzhou 225127, China
关键词:
分流比;  数值模拟;  深泓开挖;  新沂河口
Keywords:
diversion ratio;  numerical simulation;  thalweg excavation;  Xinyi estuary
分类号:
TV671
文献标志码:
A
摘要:
新沂河海口枢纽工程是新沂河洪水入海口门段的控制建筑物,通过开挖南、中、北深泓并分别建控制闸,形成3滩2泓联合行洪的总体布局。依据行洪监测资料,3个深泓的实际分流比与设计分流比发生较大变化,上游部分河段最高水位超过历史最高水位。为探究深泓分流比改变的原因,依据2019年8月行洪监测资料,开展新沂河口分流比影响因素数值模拟研究,得到结论:鱼嘴上游开挖方案可以一定程度上缓解南、北泓的行洪压力,但与中泓闸下引河开挖方案相比,其优先级较低。通过方案3可以看出,鱼嘴开挖对分流比的影响应建立于下游引河开挖的基础上。中泓闸下引河淤积是行洪能力不足的主要原因。
Abstract:
The Xinyi River Haikou Junction Project is the control structure of the Xinyi River flood inlet gate section. By excavating the south, middle and north thalwegs and constructing control gates separately, the overall layout of the 3 floods and 2 thalwegs joint flooding was formed. According to the flood discharge monitoring data, the actual diversion ratio and the design diversion ratio of the three deep reaches changed greatly, and the highest water level in the upper reaches exceeded the highest history water level. In order to explore the reasons for the change in the diversion ratio, based on the flood monitoring data in August 2019, a numerical simulation study was conducted on the influencing factors of the diversion ratio of Xinyi estuary, and concluded that the upstream excavation scheme of Yuzui could relieve the flood discharge pressure of the south and north thalweg to a certain extent. However, compared with scheme of middle thalweg sluice diversion project, the priority was lower. It could be seen from scheme 3 that the influence of Yuzui excavation on diversion ratio was established on the basis of downstream diversion excavation. The siltation of the river leading to the middle thalweg sluice was the main reason for insufficient flood discharge capacity.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-03-24
作者简介:吕大为(1986—),男,工程师,本科,主要从事水工建筑物结构设计研究工作。E-mail:39367856@qq.com
更新日期/Last Update: 2020-07-20