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原文传递 Development of a Sustainable Waterway Masterplan on an Amazon Megariver: The Madeira River, Brazil

题名：	Development of a Sustainable Waterway Masterplan on an Amazon Megariver: The Madeira River, Brazil
正文语种：	eng
作者：	C. T. Creech;Ft. S. Amorim;T. J. Lauth;A. L. N. A. Osorio
作者单位：	Coastal Hydrology and Hydraulic Design US Army Corps of Engineers Mobile District 109 St. Joseph St. Mobile AL 36602;Directorate of Waterways Brazilian National Dept. of Transportation Infrastructure St. de Autarquias Norte Q3 Bloco A Brasilia DF 70040-902 Brazil;Coastal and Hydraulics Laboratory US Army Engineer Research Development Center 3909 Halls Ferry Rd. Vicksburg MS 39180;Dept. of Hydraulic Engineering TU Delft Stevinweg 1 2628 CN Delft Netherlands
摘要：	An interdisciplinary and multicriteria design process was developed to optimize navigation and environmental objectives for the Madeira River in Brazil. A fluvial geomorphology study identified development reaches based on geologic stability with an average periodicity of 57 km. A low water reference plane (LWRP) was established representing a 90% exceedance stage based on bathymetric data collected from the Brazilian Navy and a combination of hydrological analysis and hydraulic modeling. Critical shoals and rock outcrop locations were identified based on a proposed 3.6 m draft at the LWRP. Channel dimensions were established based on Brazilian design criteria with the goal of minimizing potential repetitive maintenance dredging and allowing for adaptive management of the navigation channel location. All but one of the 17 critical navigation sites were located in the upper 640 km of the Madeira River, and site-specific designs using river training structures (dikes) were developed at 4 of the sand shoal locations. These designs were analyzed using a one-dimensional sediment transport model in HEC-RAS to evaluate the potential self-scouring response at the river training structures. The final masterplan includes beneficial reuse of large woody debris for temporary river training structures, permanent (rock) river training structures, rock removal, maintenance dredging with strategic placement to promote channel self-scour, aids to navigation, adaptive channel management, and the development of a national monitoring plan.
出版年：	2021
期刊名称：	Journal of Waterway, Port, Coastal and Ocean Engineering
卷：	147
期：	5