Download or read book A Preliminary Study of Seafloor Trafficability and Its Prediction written by K. W. Wiendieck and published by . This book was released on 1970 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Preliminary Study of Seafloor Trafficability and Its Prediction written by K. W. Wiendieck and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In anticipation of the growing need for various types of seafloor-crawling vehicles, problems of seafloor trafficability and of its prediction are outlined. The qualitative comparison between trafficability-related land and seafloor features showed that soft-soil mobility is the central problem for seafloor-crawling vehicles. Therefore, the soft-soil mobility problem was given the strongest emphasis within the state-of-the-art review, which includes a discussion of existing seafloor-crawling vehicles. The relative merits of the existing basic running gears are discussed and weighted with respect to different mission profiles and seafloor characteristics, and four (wheel, track, hanging chain, and sled) selected as prime contenders. A largely laboratory-confined test program with these four running gears is outlined to respond to the problems of immediate concern: (a) applicability of existing land trafficability prediction techniques to seafloor trafficability prediction and (b) determination of go-no go criteria, which, for practical reasons, must be related to the response of remotely operated seafloor probing devices. A free-falling two-part cone penetrometer is proposed for this latter purpose. (Author).
Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by Waterways Experiment Station (U.S.) and published by . This book was released on 1973 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1976 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Factors Affecting the Emplacement of Seafloor Installations written by Kenneth Roland Demars and published by . This book was released on 1971 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to evaluate porential environmental problems at a seafloor site. The specific environmental problems of concern are: earthquake occurrence and effects, sediment scour and deposition, slope stability, seafloor vehicle trafficability, and turbidity currents. Pertinent information on each problem area is presented including an evaluation of the magnitude, probability of occurrence, and effects on seafllor installations. General information is also presented on the seafloor environment including the geomorphology, bottom currents, and sediments. Guidelines are recommended for evaluating each problem area. Some specific recommendations are to avoid construction sites close to an active fault or on an unstable slope if earthquakes registering 6.0 on the Richter Scale have been recorded within 100 miles; on slopes greater than 10 degrees, and preferably on slopes greater than 5 degrees--to minimize creep movement and earthquake-induced failures; and where there is more than a low probability of occurrence of turbidity currents large enough to damage a structure during its useful life. Another factor is that structures near sediment sources may be subject to long-term burial and to local scour effects running gear for seafloor vehicles. (Author).
Download or read book List of Publications of the U S Army Engineers Waterway Experiment Station written by United States. Army. Corps of Engineers and published by . This book was released on 1976 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deep Sea Sediments written by Anton Inderbitzen and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of its continuing program to stimulate superior basic research in the marine environment, the Office of Naval Research, Ocean Science and Technology Division, sponsored a series of closed seminar-workshops in 1972-1973. Each seminar focused upon one re search area of marine geology which is relatively new and in need of a critical evaluation and accelerated support. The subjects areas chosen for the seminars were: 1. natural gases in marine sediments and their mode of distribution, 2. nephelometry and the optical properties of ocean waters, 3. physical and engineering properties of deep-sea sediments, and 4. physics of sound in marine sediments. The objectives of each seminar-workshop were to bring into sharper focus the state-of-the-science within each subject area, to effect some degree of coordination among the investigators working within each of these areas and to provide the Ocean Science and Technology Division guidance for national program support. This volume.contains most of the papers presented at the semi nar on the physical and engineering properties of deep-sea sediments. The seminar was held at Airlie House, Airlie, Virginia on April 24- 27, 1973 and was organized and chaired by A. Inderbitzen. The at tendees were invited from among the leading investigators in this field from both the engineering and scientific disciplines. Each attendee was requested to prepare a paper within his area of spe ciality.
Download or read book State of the art of Marine Soil Mechanics and Foundation Engineering written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1972 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1970 with total page 1730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Benthic Boundary Layer written by I. McCave and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Conference on the Benthic Boundary Layer was held under the auspices of the NATO Science Committee as part of its continuing effort to promote the useful progress of science through international cooperation. Science Committee Conferences are deliberately designed to focus attention on unsolved problems, with carefully selected participants invited to provide complementary expertise from a variety of relevant disciplines. Through inten sive discussion in small groups they seek to reach a consensus on assessments and recommendations for future research emphasis, which it is hoped will be of value to the larger scientific community. The subjects treated over the past few years have been as varied as science itself-e.g., computer software engineering, chemical catalysis, and materials and energy research. The present effort evolved from informal discussions between marine geolo gists, chemists, and biologists which underlined the desirability of improved communication among those concerned with the benthic layer. In both scien tific and technological terms this is an exciting frontier, rich in promise but poorly understood at present. It is particularly striking to realize that there are at least as many definitions of the benthic layer as there are disciplines involved, and it seemed clear that there was much to be gained by a detailed exchange of views on research capabilities, trends, and priorities. The results of the meeting appear to have confirmed the hopes of the sponsors.
Download or read book Technical Report written by and published by . This book was released on 1971 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note written by and published by . This book was released on 1979 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Offshore Petroleum Engineering written by Marjorie Chryssostomidis and published by Burns & Oates. This book was released on 1978 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SIO Reference written by and published by . This book was released on 1972 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NCEL Ocean Engineering Program written by Naval Civil Engineering Laboratory (Port Hueneme, Calif.) and published by . This book was released on 1970 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
