河床演变影响下桥区水域通航安全研究

doi:10.16265/j.cnki.issn1003-3033.2021.03.018

中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (3): 128-134.doi: 10.16265/j.cnki.issn1003-3033.2021.03.018

河床演变影响下桥区水域通航安全研究

孔宪卫^1,2 高级工程师, 张庆河^**1 教授, 杨宗默² 工程师, 齐春风² 高级工程师, 陈述³ 高级工程师, 张胡³ 教授级高工

1 天津大学建筑工程学院,天津 300072;
2 交通运输部天津水运工程科学研究所港口水工建筑技术国家工程实验室,天津 300456;
3 中铁大桥勘测设计院集团有限公司,湖北武汉 430052

收稿日期:2020-12-10 修回日期:2021-02-05 出版日期:2021-03-28 发布日期:2021-12-20
通讯作者: **张庆河(1966—),男,河北万全人, 博士,教授,主要从事水动力、泥沙研究及船舶操纵模拟研究。E-mail: coastlab@163.com。
作者简介:孔宪卫 (1981—),男,山东邹平人,博士研究生,高级工程师,主要从事通航安全、港航工程方面的研究。E-mail: tkykxw@vip.126.com。
基金资助:
国家重点研发计划项目(2018YFB1600400);中央级公益性科研院所基本科研业务费专项资金资助项目(TKS190501,TKS170216)。

Study on navigation safety under influence of riverbed evolution in bridge area

KONG Xianwei^1,2, ZHANG Qinghe¹, YANG Zongmo², QI Chunfeng², CHEN Shu³, ZHANG Hu³

1 School of Civil Engineering, Tianjin University, Tianjin 300072, China;
2 National Engineering Laboratory for Port Hydraulic Construction Technology, Tianjin Research Institute for Water Transport Engineering, MOT, Tianjin 300456, China;
3 Railway Major Bridge Reconnaissance & Design Institute Co., Ltd., Wuhan Hubei 430052, China

Received:2020-12-10 Revised:2021-02-05 Online:2021-03-28 Published:2021-12-20

摘要/Abstract

摘要： 为了科学地设定滩槽易变河段处的桥梁跨径布置方案,针对荆州长江大桥桥区水域河床演变影响通航安全的问题,采用实例调研及历史资料分析的方法,指出滩槽易变河段选址建设的桥梁,其最大风险是滩槽移位导致船舶从通航孔位置移动到非通航孔位置,提出新建桥梁通航孔布置应覆盖深泓和可能成为航道的深槽的摆动范围;根据提出的原则研究拟建的李埠桥区水域的河床演变机制,选定最低通航水位下3.5 m深槽和深泓的摆动范围作为桥跨布置的依据;最终确定的 1 120 m 桥跨布置方案能够保障河床影响下拟建李埠长江大桥的通航安全。

关键词: 河床演变, 桥区水域, 通航安全, 深槽, 深泓

Abstract: In order to scientifically design bridge span scheme for changeable riverbed, case analysis and historical analysis methods were employed to study the problem of Jingzhou Yangtze river bridge area where navigation safety was impacted by riverbed evolution. It was pointed out that the most significant risk for bridges in changeable riverbeds was that channel displacement caused by riverbed evolution made ship navigation move from navigable bridge opening to non-navigable one, and it was suggested that navigable bridge opening should cover thalweg and swing range of deep channel which may form new navigation channel. Then, riverbed evolution mechanism of Libu bridge area which was planned to be built was studied according to proposed principles, swing range of 3.5 m deep channel and thalweg under the lowest navigable stage was chosen for bridge span layout. Finally, 1 120 m scheme was confirmed to be able to guarantee navigation safety of Libu Yangtze river bridge under influence of riverbed.

Key words: riverbed evolution, bridge area, navigation safety, deep channel, thalweg

中图分类号:

X951

孔宪卫, 张庆河, 杨宗默, 齐春风, 陈述, 张胡. 河床演变影响下桥区水域通航安全研究[J]. 中国安全科学学报, 2021, 31(3): 128-134.

KONG Xianwei, ZHANG Qinghe, YANG Zongmo, QI Chunfeng, CHEN Shu, ZHANG Hu. Study on navigation safety under influence of riverbed evolution in bridge area[J]. China Safety Science Journal, 2021, 31(3): 128-134.

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河床演变影响下桥区水域通航安全研究

Study on navigation safety under influence of riverbed evolution in bridge area

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