长江澄通河段横港沙演变规律及整治效果预测  

Evolution laws of Henggang shoal of Chengtong reach of Yangtze River and effects of regulation project

作　　者：单婷婷[1] 杜德军[2] 吴道文[2] 夏云峰[2] 

机构地区：[1]江苏省水文水资源勘测局南通分局,江苏南通226406 [2]南京水利科学研究院,江苏南京210024

出　　处：《人民长江》2011年第17期4-7,共4页Yangtze River

摘　　要：近年来长江澄通河段横港沙沙尾的冲刷后退态势有所趋缓,是实施河道综合整治工程的有利时机,整治措施包括护滩、围垦和潜堤工程等。利用实测资料与河工模型试验成果,对整治工程效果进行了分析,并开展了定床和动床试验研究。结果表明,工程实施后,对涨潮水流的障碍作用明显,对落潮水流影响较小,影响主要限于工程附近水域,且工程的实施有利于整体河势的稳定。研究成果为该河段的综合整治提供了技术支撑。Since the Henggang shoal of Chengtong river reach tends to be stable with less erosion in recent years,it is an appropriate time to carry out integrated regulation works in the reach,including beach protection,reclamation and submerged dike.We analyzed the effects of the regulation works based on measuring data and results from physical model,and the studies of fixed bed and movable bed were conducted as well.The results showed that the influence of the regulation works would be limited within the waters around.The regulation project would block the flood flow obviously;however,the influence on the ebb flow was little.The regulation works would be beneficial for the stability of the general river regime.

关 键 词：横港沙 河床演变 河道整治 冲淤 模型试验 澄通河段 

分 类 号：TV143[水利工程—水力学及河流动力学]