黄河游荡型河段桥梁通航孔布置研究  

Research on layout of navigation spans of bridges on the wanderingreaches of the Yellow River

作　　者：刘晓辉 赵瑞军 刘祥玉 杨淯淮 LIU Xiao-hui;ZHAO Rui-jun;LIU Xiang-yu;YANG Yu-huai(Tianjin Port Engineering Design&Consulting Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Tianjin 300461,China)

机构地区：[1]中交天津港湾工程设计院有限公司,天津300461

出　　处：《中国港湾建设》2023年第3期64-69,共6页China Harbour Engineering

摘　　要：以包银高铁磴口黄河特大桥为例,对所在游荡型河段进行岸线及洲滩变化分析、河床断面变化情况分析,在桥梁选址不满足GB 50139—2014《内河通航标准》且无法调整的情况下,提出采取多跨覆盖主槽变化范围、合理布置桥跨的措施。通过研究现状条件下航道布置情况,对桥跨方案进行了优化调整,使现状主槽内的4×178 m主跨满足代表船型单孔双向通航要求,右侧边跨和位于左侧滩地边跨满足代表船型单孔单向通航要求,多跨通航孔覆盖了主槽摆动范围。在不实施滩槽守护及航道整治工程的情况下满足了航道通航条件,实现了桥梁建设与航道保护的和谐共赢,对同类型项目的桥梁设计具有一定的参考价值。Taking the Dengkou Bridge on the Yellow River for Baotou-Yinchuan high-speed railway for example,the changing of the waterfronts and sand banks in the wandering reaches,where the bridge is located,and the changing of the cross sections of the river bed are analyzed.Measures to build multiple spans over the changing width of the main channel and reasonably arrange the bridge spans were proposed as the selection of the bridge site could not meet the requirements speculated in Navigation standard of inland waterways and the selection cannot be adjusted.Through the study of the channel layout under the existing conditions,the bridge span plan was optimized and adjusted so that the 4×178 m main span in the current main channel can meet the requirements of the two-way navigation for representative ships,and the right side span and the side span on the left side of the banks can meet the requirements of one-way navigation for representative ships.The navigable multiple spans of the bridge have covered the changing range of the main channel.The navigable conditions of the channel are satisfied without implementing sand bank and channel protection and channel regulation,and the harmonious and win-win situation of bridge construction and channel protection is realized,which provides certain reference for the bridge design of the same type of project.

关 键 词：游荡型河段 通航孔布置 多跨通航 

分 类 号：U656.116[交通运输工程—港口、海岸及近海工程]