Abstract:
The dredged material is a valuable resource derived from hydraulic engineering and waterway engineering. At the Shanghai reach of the Yangtze River, beneficial use of the dredged material from port and navigation channel is the common expectation of water departments under the new situation of declining sediment discharge from upstream, shortage of sand resources and limitation of ocean dumping sites in the estuary. Based on the investigated data collected from engineering field, beneficial use of the dredged material at the Shanghai reach of the Yangtze River has achieved a historic leap from nothing to something in recent 10 years, and the quantity of the dredged material from the Yangtze estuary deepwater navigation channel used for land reclamation is considerable. But at the same time, there are lots of realistic problems such as simple use of the dredged material, low ratio of utilization, and imperfect system. For the purpose of further improving the utilization level of the dredged material at the Shanghai reach of the Yangtze River, some framework suggestions are as follows: strengthening the research and development of key techniques, speeding up the transformation of utilization mode of the dredged material, and increasing the innovation of related systems and mechanism.