某内河航道整治工程凸角裁弯方案研究  

Discussion on the research on the convex bending scheme of an inland waterway improvement project

作　　者：付欧阳 Fu Ouyang(CCCC Shanghai Waterway Engineering Design and Consulting Co.,Ltd.,Shanghai 200120,China)

机构地区：[1]中交上海航道勘察设计研究院有限公司,上海200120

出　　处：《港口航道与近海工程》2024年第5期30-36,共7页Port,Waterway and Offshore Engineering

摘　　要：结合实际工程案例,为确定转向角度大的两条航道交汇处的碍航凸角裁弯方案,在根据规范进行尺度论证的基础上,结合数学模型,对各方案的水沙条件变化情况进行预测分析。裁弯后,河段整体冲淤趋势未发生明显改变,裁弯附近河段随着挖深及疏浚面积的增大,回淤量随之增加,但总体回淤强度不大;横流明显减小,弯曲航道航行条件得到改善,船舶转弯半径更大,航行视路更开阔,有利于船舶操纵与航行安全。裁弯工程已按本文所荐及优化方案实施完成,可供类似工程借鉴和参考。Based on actual engineering cases,in order to determine the convex bending scheme at the intersection of two channels with large steering angles,this paper predicts and analyzes the changes of water and sand conditions in each scheme on the basis of scale demonstration according to the specifications and combined with mathematical models.After cutting,the overall erosion and silting tendency of the engineering river section did not change significantly,and the amount of dredging increased accordingly with the increase of the digging depth and dredging area in the river section near the bend,but the overall backsilting intensity was not large.The cross-flow is significantly reduced,the navigation conditions of the curved channel are improved,the turning radius of the ship is larger,and the navigation vision is wider,which is conducive to ship maneuvering and navigation safety.The cutting project has been implemented in accordance with the recommended and optimized scheme in this article,which can be used for reference and reference of similar projects.

关 键 词：涨落潮 开敞航道 凸角裁弯 数学模型 

分 类 号：U6[交通运输工程—船舶与海洋工程]