Author: E. W. L. HoPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Geotechnical Properties of Deep-ocean Sediments
Author: E. W. L. HoDeep-Sea Sediments
Author: Anton InderbitzenPublisher: Springer Science & Business Media
ISBN: 1468427547
Category : Science
Languages : en
Pages : 496
Book Description
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.
Geotechnical Properties of Deep Sea Sediments
Author: P. J. SchultheissPublisher:
ISBN:
Category : Marine geotechnics
Languages : en
Pages : 80
Book Description
Geotechnical Properties of Deep Sea Sediments in the North-western Pacific Ocean
Author: Gregory R. WalkerPublisher:
ISBN:
Category : Marine sediments
Languages : en
Pages :
Book Description
Environmental Effects on Engineering Properties of Deep Ocean Sediments
Author: E. VeyPublisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 78
Book Description
The environmental effects of the deep ocean were investigated in consolidation, direct shear, and vane shear tests on four ocean bottom sediments. Tests were performed in sea water environment within pressure chambers to create hydrostatic environmental pressures up to 10,000 psi. The pressure chambers were also refrigerated to provide the required 1 to 3C environmental temperature. The direct shear tests indicated that there was a decrease in shear strength with increased environmental pressures for fine grained soils at high void ratios. The vane shear tests showed an increase in shear strength with an increase in environmental pressure for the more plastic soil and a decrease in strength with an increase in environmental pressure for the less plastic soil. The consolidation tests showed no effects that could be attributed to the environmental conditions. However, the apparatus was not sensitive enough to measure effects on loose sediments under small loads. Such effects might be expected to occur based on the shear test results.
Environmental Effects on Engineering Properties of Deep Ocean Sediments
Author: E. VeyPublisher:
ISBN:
Category :
Languages : en
Pages : 68
Book Description
The effect of the environmental pressure on the consolidation and shear strength characteristics of deep ocean soils was investigated. Consolidation, direct shear and vane shear tests were performed on remolded specimens of soils dredged from the ocean bottom. These tests were conducted in sea water within pressure chambers at hydrostatic environmental pressures up to 10,000 psi and at temperatures of 1 to 3C, the temperature of the deep ocean. These tests were conducted on completely remolded deep ocean specimens which had a soil structure different from the in situ structure. Therefore, the results obtained may differ for the same soils in the natural state. (Author).
Environmental Effects on Engineering Properties of Deep Ocean Sediments
Author: A Geotechnical Investigation of a Deep Ocean Site
Author: TJ. FreemanPublisher:
ISBN:
Category : Deep sea
Languages : en
Pages : 21
Book Description
A site investigation in deep water often relies solely on laboratory tests to evaluate the geotechnical properties of the sediments. This imposes two fundamental limitations on the investigation: (1) the maximum depth to which the properties can be profiled and (2) the uncertainty of sample disturbance and de-pressurization effects on the measured data. This paper uses results from investigations performed in a water depth of 5.4 km at an abyssal plain site, Great Meteor East (GME), to illustrate how ambiguities can arise in laboratory measurements of strength, and discusses how a simple in-situ test, the expendable "penetrator," can be used to corroborate the laboratory data.
Geotechnical Properties of Sea-floor Sediments Off the Coast of Southern California
Author: Iraj NooranyPublisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 10
Book Description
Near surface sea floor soils were obtained with a sampler attached to the tracked underwater vehicle RUM, from eight regions off the coast of Southern California. The soils represented continental shelf deposits as well as deep sea floor sediments. The geotechnical properties of these soils, including grain-size distribution, index properties, strength and compressibility, were determined.
Geotechnical Engineering of Ocean Waste Disposal
Author: K. R. DemarsPublisher: ASTM International
ISBN: 0803113900
Category : Marine geotechnics
Languages : en
Pages : 312
Book Description