信江东大河复杂浅滩段航道整治方案比选  

Comparison of waterway regulation scheme for complex shoal section in East Xinjiang River

作　　者：任莎莎 陈界仁[1] 吴彬 杨进生 REN Sha-sha;CHEN Jie-ren;WU Bin;YANG Jin-sheng(College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China;Jiangxi Waterway Survey and Design Institute,Nanchang 330006,China)

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]江西省航务勘察设计院,江西南昌330006

出　　处：《水运工程》2019年第10期159-165,共7页Port & Waterway Engineering

基　　金：国家重点研发计划资助项目(2018YFC0407204)

摘　　要：信江是鄱阳湖流域的五大河流之一,现状航道为Ⅶ级,不满足社会经济发展要求,信江下游拟通过渠化工程来提高航道等级。根据最新河道地形资料及实测水文资料建立工程段的平面二维水流泥沙数学模型并进行详细验证,对航道整治工程后的水流、泥沙冲淤进行计算。对东大河蔡家洲、干港口、磨盘洲3个重点滩险段航道现状及碍航特性进行分析,提出渠化工程后3个险滩段航道整治布置方案,综合考虑工程后的水流运动、工程量、行洪影响、航槽稳定等条件,综合比选得到3个险滩段的航道整治推荐方案及对蔡家洲滩进行工程方案优化,设计成果可为类似航道整治提供参考。The Xinjiang River is one of the five major rivers in the Poyang Lake basin.The current level of waterway is gradeⅦ and can’t meet the requirements of the social and economic development.So,it is planned to improve the level of waterway through canalization on the lower reaches of the Xinjiang River. Based on the latest river topographic and hydrological data,we establish a 2-D flow and sediment mathematical model and carry out a detailed verification.We also calculate the flow and sediment movement after the channel regulation project.Analyzing the current situation and navigation obstruction characteristics for the three dangerous sections of Caijiazhou,Gangangkout and Mopanzhou,we propose the waterway schemes of the three dangerous beach sections.The recommended scheme of the three dangerous beach sections are selected by comprehensive comparison,taking into account the conditions of flow movement,engineering volume,flood impact and channel stability.The optimization scheme of Caijiazhou beach is obtained.The project scheme can provide reference for similar waterway regulation.

关 键 词：信江东大河 碍航特性 航道整治方案 数学模型 方案比选 

分 类 号：U617[交通运输工程—船舶及航道工程]