An Overview of the Subject.- Prediction of Deep-Sea Sediment Properties: State-of-the Art,.- Marine Geomechanics: Overview and Projections.- Marine Geotechnical Properties: Interrelationships and Relationships to Depth of Burial.- Mechanics Problems and Material Properties.- Determination of Mechanical Properties in Marine Sediments.- The Role of Laboratory Testing in the Determination of Deep-Sea Sediment Engineering Properties.- Strength and Stress-Strain Characteristics of Cemented Deep-Sea Sediments.- An Analysis of the Vane Shear Test at Varying Rates of Shear.- Usefulness of Spade Cores for Geotechnical Studies and Some Results from the Northeast Pacific.- Settlement Characteristics of Sea-Floor Sediments Subjected to Vertical Loads.- Consolidation of Marine Clays and Carbonates.- Deep-Sea Foundation and Anchor Engineering.- Standardization of Marine Geotechnics Symbols, Definitions, Units, and Test Procedures.- Application of Physical and Mechanical Properties in the Marine Environment.- Soil Mechanics Considerations in the Design of Deep Ocean Mining Equipment.- Initial Penetration and Settlement of Concrete Blocks into Deep-Ocean Sediments.- In Situ Measurement of Sediment Acoustic Properties During Coring.- Sea Floor Soil Mechanics and Trafficability Measurements with the Tracked Vehicle "RUM".- Relationships Between Physical, Mechanical and Geologic Properties.- Erodibility of Fine Abyssal Sediment.- The Effects of the Benthic Fauna on the Physical Properties of Deep-Sea Sediments.- Sedimentation in the Indian Ocean.- Physical Properties of Sedimentary Provinces, North Pacific and North Atlantic Ocean.- The Application of Studies of Marine Sediment Dynamics.- Deep-Sea Carbonates.- Precipitation and Cementation of Deep-Sea Carbonate Sediments.- Seminar Workshops.- Workshop I Phenomena.- Workshop II Instrumentation.- Workshop III Standardization.- List of Participants and Contributors.
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.
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