Research On The Reclaiming Project In The East Tidal Flat Of Nanhui In Shanghai

Feasibility study on the first stage of the reclaiming project in the east tidal flat of Nanhui was particularly expounded in this paper. The location of this project is between the Dazhi Estuary and the Shipile port. Through the analysis of the natural conditions, the river regime, and the flow field, the construction scheme was compared and selected. Then the environment impact assessment and economic evaluation was done for this project. The solution can be used as the reference for this project and the others.The main conclusions in the thesis were summarized as follows:(1) The reclaiming project between the Dazhi estuary and the Shipile port is requisite and urgent.(2) The fair current dike of this reclaiming project affects the peripheral projects little. The reclaiming effect is visible. This project employ the one-step measure is reasonable and economical.(3) In the plan layout, the project was divided into four parts. Every part builds a 400m width tide entrance. This execution makes for the sediment accumulation, convenient to construction work. And it is good for next stage work.(4) The three construction schemes of the main training wall recommended in this thesis are available. Furthermore, the third scheme is preferred.(5) This project has a little effect on the artificial peninsular, the international airport project and the deep-water channel in the Yangtze River. Particularly it is useful for maintaining the channel depth. But the project will exert the deposition in the east water gate of the Dazhi River, where should be observed especially, if necessary, dredged.(6) The investment yield and the economic benefit of this project are excellent.