Download or read book Environmental Effects of Dredging Selecting Equipment for Use in Dredged Material Containment Areas Environmental Effects of Dredging written by and published by . This book was released on 1990 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note describes methods for selecting appropriate equipment for use in dredged material containment areas. It also briefly describes the types of equipment currently being successfully used in these areas. Management of confined upland dredged material containment areas, to dewater the material and improve its engineering properties, requires use of large equipment for activities such as surveying, trenching, and earthmoving. Because dredged material enters the containment areas as a slurry and subsequently is dried to form a stiff crust overlying softer material, its structure poses many challenges not normally encountered in conventional earthwork. Therefore, selection of equipment must be made based on not only the normal considerations for equipment selection (i.e., use, availability, and capacity), but also on dredged material site conditions. Techniques for assessing equipment mobility and performance have been developed and documented. Empirical data also can provide some initial guidance on equipment selection and timing of initial management activities.
Download or read book Environmental Effects of Dredging Equipment Mobility in Confined Dredged Material Disposal Areas Field Evaluations written by and published by . This book was released on 1989 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note describes recently completed equipment evaluations and presents data on mobility of this equipment in confined dredged material containment areas. The equipment evaluation included newly developed four- and six-wheeled low-ground-pressure vehicles. This equipment is typically used to tow a rotary ditching device to create surface trenches to enhance drainage and dewatering of confined dredged material disposal sites. Studies were conducted during the Dredged Material Research Pro gram (DMRP) (1973-1977) to identify and evaluate various pieces of low-ground-pressure construction equipment for use in dredged material containment areas. Procedures were developed (by modification of the existing NATO Reference Mobility Model (NRMM) and subsequent Army Mobility Model (AMM)) to predict the performance of this equipment for conducting various work functions (Green 1977, Willoughby 1977, 1978). Since completion of the I)MRP, new equipment which can be used to trench the surface of dredged material containment areas has become available. The newly developed low-ground-pressure equipment is being used or is being considered for use by several Corps of Engineer (CE) Districts to conduct trenching operations in confined dredged material disposal areas. A number of questions have been raised regarding performance of this equipment and comparison of its performance to other available equipment. These recent studies were conducted to evaluate the performance of this newly developed low-ground-pressure equipment on soft soils in dredged material containment areas.
Download or read book Environmental Aspects of Dredging written by R. N. Bray and published by CRC Press. This book was released on 2008-03-10 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding a port, deepening a navigation channel or creating new land for development, introduces changes to our physical, social, economic and political environment. Changes may result from events during the construction process, or relate to the nature of the completed structure. Changes can be positive or negative, short-term or long-term, and may affect the immediate vicinity of the project or a larger geographical area. Predicting and assessing all possible effects of a planned dredging activity in a scientifically-sound and reliable manner is essential, so that appropriate control measures can be taken to avoid or mitigate unwelcome impacts. This book provides guidance for a complete holistic environmental evaluation procedure and for the design and implementation of environmental control measures. The book is of particular interest to engineers, government agencies and port authorities, as well as civil engineering consultants and contractors involved in planning and designing dredging, maritime infrastructure and fluvial projects.
Download or read book Selecting and Operating Dredging Equipment written by and published by . This book was released on 1993 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating Environmental Effects of Dredged Material Management Alternatives written by and published by . This book was released on 1992 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is intended to serve as a consistent "roadmap" for U.S. Army Corps of Engineers and U.S. Environmental Protection Agency personnel in evaluating the environmental acceptability of dredged amterial management alternatives. Specifically, its major objectives are to provide: A general technical framwork for evaluating the environmental acceptability of dredged material management, alternatives (open-water disposal, confined (diked) disposal, and beneficial uses). Additional technical guidance to augment present implementation and testing manuals for addressing the environmental acceptability of available management options for the discharge of dredged material in both ope water and confined sites. Enhanced consistency and coordination in USAC/EPA decision making in accordance with Federal environmantl statutes regulating dredged material management.
Download or read book Dredging America s Waterways and Harbors written by United States. General Accounting Office and published by . This book was released on 1977 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Dredging Engineering written by John B. Herbich and published by McGraw-Hill Professional Publishing. This book was released on 2000 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authoritative, up-to-date guide to dredging theory and practice. From selecting the right equipment, to evaluating environmental impact, to bidding on a project, Handbook of Dredging Engineering, Second Edition, is the last word on modern hydraulic dredging. Edited by John B. Herbich, with contributions by well-know experts in the field, the Handbook examines basic fluid mechanics; dredge pumps; dredging equipment; sediment; pipeline transport of solids; dredging methods; disposal and placement of dredged material; numerical models for predicting the fate of dredged material placed in open water; environmental effects of dredging activities; instrumentation and automation; and project planning. This vital new edition covers major advances made over the last seven years. Three chapters are new to this edition: numerical models for predicting the fate of dredged material...subaqueous capping of contaminated sediment...and removal of contaminated sediments by dredging, with illustrative case studies.
Download or read book DREDGING MANAGEMENT PRACTICES FOR THE ENVIRONMENT a structured selection approach written by and published by PIANC. This book was released on 2009 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Productive Land Use of Dredged Material Containment Areas written by and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Update of the Corps Environmental Effects of Dredging Programs FY 89 written by Robert M. Engler and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beneficial Uses of Dredged Material written by and published by PIANC. This book was released on 1992 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beneficial Environmental Aspects of the Corps Dredging Program written by United States. Army. Corps of Engineers and published by . This book was released on 1983 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dredging and Its Environmental Effects written by Peter A. Krenkel and published by . This book was released on 1976 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Effects of Dredging Dredged Material Containment Area Management Practices for Increasing Storage Capacity written by and published by . This book was released on 1989 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this technical note describes techniques for managing confined dredged material disposal areas to maximize storage capacity. Management of these disposal facilities is recommended to extend their useful life and, thus, minimize the requirement for additional disposal facilities.-BKA.
Download or read book Final report of the international commission for the study of environmental effects of dredging and disposal of dredged materials written by and published by PIANC. This book was released on with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Dredgings for Landfill written by Raymond J. Krizek and published by . This book was released on 1978 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research program was initiated with the overall objective of evaluating the usefulness of dredged sediments as landfill material. The study is limited to the deposition of polluted fresh water dredgings from the Great Lakes area, and the major effort was centered around four disposal sites in the harbor serving Toledo, Ohio. A comprehensive sampling and testing program was undertaken in the field and in the laboratory to determine the engineering characteristics of hydraulically placed maintenance dredgings and the water quality effects associated with a typical dredging and disposal operation. Several thousand chemical analyses were conducted to assess the pollution potential of dredged materials under chemically treated and nontreated conditions. Several series of flocculation-sedimentation, sedimentation-leaching, repeated leaching, and evaporation tests were conducted to study the possibility of stabilizing these materials with chemical additives and to evaluate the effects, if any, of such chemicals on the leachates. Numerous index property tests were performed for classificatory purposees, and several correlations among different properties and the results of the index tests were established. An extensive field monitoring program was undertaken to evaluate the effects of a typical dredging and disposal operation on the water quality parameters of the environs. Periodic vane shear tests were conducted in two of the areas, and settlement plates were installed at one site to determine the time-dependent variations in the strength and settlement, respectively. Several in situ permeability tests were conducted on the foundation soils and the dredged materials to evaluate drainage conditions. Finally, a one-dimensional mathemathical model was developed to assess the relative importance of gravity drainage and evapotransporation on the desiccation and consolidation of a landfill composed of maintenance dredgings.
Download or read book Engineering and Design written by United States. Army. Corps of Engineers and published by . This book was released on 1983 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
