Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Direct Shear Testing of Marine Sediments
Direct Shear Testing of Marine Sediment
Author: John Stoddard BergPublisher:
ISBN:
Category :
Languages : en
Pages : 76
Book Description
Traditionally, the methods used to determine the mechanical properties of marine sediments were those used in the field of soil mechanics. These methods are generally acceptable when the sediment tested is plastic or at water contents below the liquid limit. However, for predicting in-situ conditions, that is for sediment at water contents above the liquid limit, the problem is complex. Specifically, the determination of shear strength of an unconsolidated-undrained sample by the direct shear method was found to exhibit an angle of internal friction ranging from 19 degrees to 23.5 degrees. This indicates that the shear strength of the sediments is dependent on the normal load applied to it. (Author).
Direct Shear Testing of Marine Sediments
Author: John Stoddard BergPublisher:
ISBN:
Category : Oceanography
Languages : en
Pages :
Book Description
Strength Testing of Marine Sediments
Author: Ronald C. ChaneyPublisher: ASTM International
ISBN: 9780803104310
Category : Technology & Engineering
Languages : en
Pages : 561
Book Description
Philadelphia, PA : ASTM, 1985.
A Comparison of the Test Results of Vane and Direct Shear Tests Made on Recent Marine Sediments
Author: A. L. InderbitzenPublisher:
ISBN:
Category : Marine geotechnics
Languages : en
Pages : 24
Book Description
Shear strength envelopes calculated from consolidated-undrained direct shear tests (hereafter called direct-shear lines) were compared to strength envelopes calculated from vane shear tests (hereafter called vane-shear lines) made throughout the length of a sediment core. These comparisons were made on shear strength measurements from seven recent marine sediment cores. The seven sediment cores used for this study were obtained from the upper San Diego Trough slope in water depths of 249 to 291 meters by Lockheed's submersible DEEP QUEST. The materials tested were classified primarily in the clayey silt to silty clay range based upon grain size distribution. (Author).
Geotechnical Properties of Deep Sea Sediments
Author: P. J. SchultheissPublisher:
ISBN:
Category : Marine geotechnics
Languages : en
Pages : 80
Book Description
Deep-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.
An Unconfined Compression Testing Machine for Marine Sediments
Author: Richard Karl WestfahlPublisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 0
Book Description
The two most common laboratory test methods used for measuring the undisturbed or original shear strength of marine sediments are the vane shear test and the unconfined compression test. The application of the load in the unconfined compression test is accomplished either in a strain-controlled or a stress-controlled manner. An unconfined compression testing machine was constructed to allow application of the load by either the strain-controlled or stress-controlled method, and it was specifically designed to accurately test marine sediments having relatively low values of shear strength. A unique feature of the apparatus is that it provides a continuous plot of displacement versus load throughout the test procedure. Tests for shear strength in the two load application modes were conducted on gravity cores taken on the continental slope between San Francisco and Monterey. Results of the tests compared favorable with each other, as well as with values secured from vane shear testing. The tests suggest that these particular sediments have friction angles approximating 30 degrees. (Author).
An Engineering Study of Ocean Sediments
Author: Relationships Between Sedimentation Rate and Shear Strength in Recent Marine Sediments Off Southern California
Author: Anton Louis InderbitzenPublisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 266
Book Description