Download or read book The Delft Sand Clay and Rock Cutting Model written by S.A. Miedema and published by IOS Press. This book was released on 2014-10-29 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sand, clay and rock have to be excavated for a variety of purposes, such as dredging, trenching, mining (including deep sea mining), drilling, tunnel boring and many other applications. Many excavations take place on dry land, but they are also frequently required in completely saturated conditions, and the methods necessary to accomplish them consequently vary widely. This book provides an overview of cutting theories. It begins with a generic model, valid for all types of soil (sand, clay and rock), and continues with the specifics of dry sand, water-saturated sand, clay, atmospheric rock and hyperbaric rock. Small blade angles and large blade angles are discussed for each soil type, and for each case considered the equations/model for cutting forces, power and specific energy are given. With models verified by laboratory research, principally from the Delft University of Technology, and data from other recognized sources, this book will prove an invaluable reference for anybody whose work involves major excavations of any kind.

Download or read book Oceanic Abstracts with Indexes written by and published by . This book was released on 1986 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Waterways Journal written by and published by . This book was released on 2003 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Approach Channels written by Permanent International Association of Navigation Congresses and published by PIANC. This book was released on 1997 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contractors and Engineers Magazine written by and published by . This book was released on 1968 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contractors Engineers Magazine written by and published by . This book was released on 1968 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment and Remediation of Contaminated Sediments written by Danny Reible and published by Springer Science & Business Media. This book was released on 2007-01-21 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this text, drawn from presentations and discussion at a May 2005 NATO Advanced Research Workshop, current approaches to the assessment and remediation of contaminated sediments are discussed with emphasis on in-situ management. The text addresses physical, chemical and biological approaches for the assessment and remediation of sediments. The development of regulatory and strategic approaches is discussed with emphasis on the potential for biological remediation in the management of contaminated sediments.

Download or read book Slurry Transport Using Centrifugal Pumps written by K. C. Wilson and published by Springer Science & Business Media. This book was released on 2008-03-28 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1,1 Applications of Slurry Transport Vast tonnages are pumped every year in the form of solid-liquid mixtures, known as slurries. The application which involves the largest quantities is the dredging industry, continually maintaining navigation in harbours and rivers, altering coastlines and winning material for landfill and construction purposes. As a single dredge may be required to maintain a throughput of 7000 tonnes of slurry per hour or more, very large centrifugal pumps are used. Figures 1-1 and 1-2 show, respectively, an exterior view of this type of pump, and a view of a large dredge-pump impeller (Addie & Helmley, 1989). The manufacture of fertiliser is another process involving massive slur- transport operations. Li Florida, phosphate matrix is recovered by huge draglines in open-pit mining operations. It is then slurried, and pumped to the wash plants through pipelines with a typical length of about 10 kilometres. Each year some 34 million tonnes of matrix are transported in this manner. This industry employs centrifugal pumps that are generally smaller than those used in large dredges, but impeller diameters up to 1. 4 m are common, and drive capacity is often in excess of 1000 kW. The transport distance is typically longer than for dredging applications, and Chapter 1 Figure LI. Testing a dredge pump at the GIW Hydraulic Laboratory Figure 1. 2. Impeller for large dredge pump 1. Introduction 3 hence a series of pumping stations is often used. Figure 1-3 shows a boost- pump installation in a phosphate pipeline.

Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1985-10 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Site Investigation Requirements for Dredging Works written by Permanent International Association of Navigation Congresses. Permanent Technical Committee II. Working Group No. 23 and published by PIANC. This book was released on 2000 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sediment Dredging at Superfund Megasites written by National Research Council and published by National Academies Press. This book was released on 2007-10-30 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some of the nation's estuaries, lakes and other water bodies contain contaminated sediments that can adversely affect fish and wildlife and may then find their way into people's diets. Dredging is one of the few options available for attempting to clean up contaminated sediments, but it can uncover and re-suspend buried contaminants, creating additional exposures for wildlife and people. At the request of Congress, EPA asked the National Research Council (NRC) to evaluate dredging as a cleanup technique. The book finds that, based on a review of available evidence, dredging's ability to decrease environmental and health risks is still an open question. Analysis of pre-dredging and post-dredging at about 20 sites found a wide range of outcomes in terms of surface sediment concentrations of contaminants: some sites showed increases, some no change, and some decreases in concentrations. Evaluating the potential long-term benefits of dredging will require that the U.S. Environmental Protection Agency step up monitoring activities before, during and after individual cleanups to determine whether it is working there and what combinations of techniques are most effective.

Download or read book Sedimentation Control to Reduce Maintenance Dredging of Navigational Facilities in Estuaries written by National Research Council and published by National Academies Press. This book was released on 1987-02-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Global Climate Change Impacts in the United States written by U.S. Global Change Research Program and published by Cambridge University Press. This book was released on 2009-08-24 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the science of climate change and impacts on the United States, for the public and policymakers.

Download or read book Current Literature in Traffic and Transportation written by and published by . This book was released on 1978 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Staff Ride Handbook For The Vicksburg Campaign December 1862 July 1863 Illustrated Edition written by Dr. Christopher Gabel and published by Pickle Partners Publishing. This book was released on 2015-11-06 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes over 30 maps and Illustrations The Staff Ride Handbook for the Vicksburg Campaign, December 1862-July 1863, provides a systematic approach to the analysis of this key Civil War campaign. Part I describes the organization of the Union and Confederate Armies, detailing their weapons, tactics, and logistical, engineer, communications, and medical support. It also includes a description of the U.S. Navy elements that featured so prominently in the campaign. Part II consists of a campaign overview that establishes the context for the individual actions to be studied in the field. Part III consists of a suggested itinerary of sites to visit in order to obtain a concrete view of the campaign in its several phases. For each site, or “stand,” there is a set of travel directions, a discussion of the action that occurred there, and vignettes by participants in the campaign that further explain the action and which also allow the student to sense the human “face of battle.” Part IV provides practical information on conducting a Staff Ride in the Vicksburg area, including sources of assistance and logistical considerations. Appendix A outlines the order of battle for the significant actions in the campaign. Appendix B provides biographical sketches of key participants. Appendix C provides an overview of Medal of Honor conferral in the campaign. An annotated bibliography suggests sources for preliminary study.

Download or read book Engineering News written by and published by . This book was released on 1893 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Books in Print Supplement written by and published by . This book was released on 1988 with total page 1930 pages. Available in PDF, EPUB and Kindle. Book excerpt: