长江南京以下河段深水航道整治基本原则与思路

长江南京以下河段江阔水深,航运自然条件优越,通过河床条件的归类分析,结合航道现状和沿江两岸外部需求及限制条件,表明南京以下河段具备建设12.5 m深水航道的良好条件,但同时航道整治还存在一些疑难问题.进而从河道综合治理与利用出发,提出了深水航道整治的基本原则,并针对河床条件较差、碍航严重的典型浅滩河段,提出了初步的整治思路及相应的工程措施.

Basic principles and thoughts on deep waterway regulation in the lower reaches of the Yangtze River

There is a wide and deep water way in the downstream reach of Nanjing of the Yangtze River with ideal natural conditions for navigation. By classifying and analyzing natural conditions of the reach, and considering waterway actuality and external requirement and restriction of both sides, it is found that there are favourable conditions for construction of a deep waterway with 12.5 m depth, and some difficult problems in waterway regulation are pointed out. Then, from the view of integrating the improvement and development of river resources, the basic rule in the regulation of the waterway is presented, and primary regulating notions and engineering measures for some typical shoal reaches are put forward.