Abstract
Phase-II Project of Deep Water Channel Construction of Yangtze River(2014-2015), including the Yi-Zheng Segment, enables the water depth of Yangtze River Channel between Nanjing and Nantong arrive 12.5 meters. This thesis analyzes the sedimentation movement of Yi-Zheng Segment with mathematical model, makes prediction of the sediment's strength and space-time distribution. The simulation results indicate that the yearly dredging quantity of 1998 and 2010, two typical hydrological years, are 1.528 million m3 and 0.499 million m3 separately. The main maintenance months are October, November and December during the dry season, while the main maintenance parts are the channel from Dadaohe to Majiakou, the channel from Majiakou to Qibaidu, the channel from Qibaidu to Longmenkou in the right branch of Shiyezhou. These results could be helped to provide support of later dredging operation for keeping deep water Channel of Yi-Zheng Segment.
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