Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Containment Area Management to Promote Natural Dewatering of Fine-Grained Dredged Material
This report deals with containment area management to promote natural dewatering of fine-grained dredged material. Interviews with personnel of several Corps of Engineers (CE) Districts and visits to dredged material containment areas showed that little is being done to dewater fine-grained dredged material confined on land. This was not unexpected since few economically feasible techniques were known and in many instances the local sponsors were responsible for providing facilities for dredged material confinement. Based on information gained during the preliminary phase of the study and on current research results, for general guidelines for containment area management were formulated. The first guideline is concerned with the separation of sand and gravel from the fine material during the dredging operation; the coarse fraction may have productive use potential or may be useful for constructing drainage blankets to dewater the fine fraction. Surface water management is the subject of the second guideline, which suggests that water be left ponded within the containment area throughout the disposal operation and thereafter removed as quickly as possible to initiate evaporation at the earliest time. Guideline 3 presents concepts for optimizing evapotranspirative dewatering by scheduling dredging before hot, dry weather, by placing dredged material in lifts not greater than 0.3 meter thick, and by using vegetation to transpire water from the dredged material.
Containment Area Management to Promote Natural Dewatering of Fine-Grained Dredged Material
This report deals with containment area management to promote natural dewatering of fine-grained dredged material. Interviews with personnel of several Corps of Engineers (CE) Districts and visits to dredged material containment areas showed that little is being done to dewater fine-grained dredged material confined on land. This was not unexpected since few economically feasible techniques were known and in many instances the local sponsors were responsible for providing facilities for dredged material confinement. Based on information gained during the preliminary phase of the study and on current research results, for general guidelines for containment area management were formulated. The first guideline is concerned with the separation of sand and gravel from the fine material during the dredging operation; the coarse fraction may have productive use potential or may be useful for constructing drainage blankets to dewater the fine fraction. Surface water management is the subject of the second guideline, which suggests that water be left ponded within the containment area throughout the disposal operation and thereafter removed as quickly as possible to initiate evaporation at the earliest time. Guideline 3 presents concepts for optimizing evapotranspirative dewatering by scheduling dredging before hot, dry weather, by placing dredged material in lifts not greater than 0.3 meter thick, and by using vegetation to transpire water from the dredged material.
Containment Area Management to Promote Natural Dewatering of Fine-Grained Dredged Material
M. J. Bartos (Autor:in)
1977
94 pages
Report
Keine Angabe
Englisch
Civil Engineering , Solid Wastes Pollution & Control , Dredged materials , Containment(General) , Management , Fine grained materials , Water reclamation , Dredging , Soils , Soil mechanics , Disposal , Separation , Capacity(Quantity) , Sand , Clay , Storage , Drainage , Dredge spoil , Dewatering , Solid waste disposal
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