tailieunhanh - Đánh giá khả năng lựa chọn vị trí đổ vật liệu nạo vét luồng vào cảng trên vùng biển Hải Phòng

Bài viết dựa trên cách tiếp cận tổng hợp phương pháp mô hình (mô hình Delft3D và phương pháp MORFAC) và phương pháp phân tích đa chỉ tiêu kinh tế xã hội và môi trường sinh thái), các vị trí phù hợp nhất có thể tiếp nhận vật liệu bùn cát do nạo vét luồng cảng Hải Phòng đã được xác định. | Đánh giá khả năng lựa chọn vị trí đổ vật liệu nạo vét luồng vào cảng trên vùng biển Hải Phòng Vietnam Journal of Marine Science and Technology Vol. 19 No. 4 2019 557 569 DOI https 1859-3097 19 4 12713 http jmst Assessment of possibility of dumping site selection for dredged materials from shipping channels in Hai Phong coastal waters Tran Dinh Lan1 Vu Duy Vinh1 Do Thi Thu Huong1 Do Gia Khanh2 1 Institute of Marine Environment and Resources VAST Vietnam 2 Hai Phong Department of Science and Technology Hai Phong Vietnam E-mail lantd@ Received 21 December 2018 Accepted 15 April 2019 2019 Vietnam Academy of Science and Technology VAST Abstract In order to keep essential depths in shipping channels to and from Hai Phong ports regular dredging activities are maintained with about million tons of sediments per year. Due to almost all the sediments of dredged material in the channels are composed of mud and silt they are not easy to be used for land filling or other purposes. Moreover disposing these materials on land is facing difficulties because of requiring the design and construction of dikes requiring compaction and drainage of dumped materials. Therefore disposal of dredged material from shipping channels in Hai Phong sea has become urgent. Based on integrated approach the combination of numerical modeling and multicriteria decision analysis-GIS natural condition socio-economic and environment-ecosystem conditions was made and the most suitable dumping sites were proposed in the regions with water depth ranging between 18 27 m. Their total receiving capacity was estimated about 206 million tons for 40 50 years. Keywords Shipping channels modeling sea bed dumping sites Hai Phong. Citation Tran Dinh Lan Vu Duy Vinh Do Thi Thu Huong Do Gia Khanh 2019. Assessment of possibility of dumping site selection for dredged materials from shipping channels in Hai Phong coastal waters. Vietnam Journal of Marine Science and