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2 edition of Vane shear determination of the viscoelastic shear modulus of submarine sediments found in the catalog.

Vane shear determination of the viscoelastic shear modulus of submarine sediments

by Herbert Scott Stevenson

  • 178 Want to read
  • 2 Currently reading

Published by Texas A & M University .
Written in English

    Subjects:
  • Civil engineering

  • ID Numbers
    Open LibraryOL25336445M

    of shear modulus determination described have all beenused with good results. The equations used in the calculations have been completely derived for easy reference and appear in the appendix. It should be noted that all methods presented in this report determine shear modulus due to panel shear as oposed to Interlaminar shear. Residual shear strength is defined to be measured after 90° of vane rotation. In contrast, remolded shear strength is dependent on whether it is measured by vane remolding or hand remolding. To accomplish vane remolding, a minimum of three vane revolutions are by: 3.

    Following a discussion of the relative magnitude of cu, measured by the field vane, it is concluded that there is a consistent relationship with other measures of cu, depending on the plasticity index, provided the other strength measurements are made . The shear modulus of these materials is usually different in each of the three mutually orthogonal planes and varies within each plane according to the definition of the axes. Reliable and satisfactory methods for the experimental determination of the shear properties of such materials are difficult to develop, because of the requirement for Cited by: 3.

    MEASUREMENT OF RESIDUAL/REMOLDED VANE SHEAR STRENGTH OF MARINE SEDIMENTS. The measurement of both residual and remolded shear strength using the vane shear apparatus is discussed. Residual shear strength is defined to be measured after 90 degrees of vane rotation. In contrast, remolded shear strength is dependent on whether it is . Full text of "Compressibility characteristics of submarine sediments and settlement estimation for ocean structures." See other formats.


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Vane shear determination of the viscoelastic shear modulus of submarine sediments by Herbert Scott Stevenson Download PDF EPUB FB2

Mationcharacteristicsandcanbedescribedbyaviscoelastic relaxation modulus.A method is developed for determinationof the relaxationmodulus in shearwhichutilizesviscoelastictheory.

Vane shear determination of the visco-elastic shear modulus of submarine sediments. By Herbert Scott Stevenson. Abstract. Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document.

Please report any quality issues you encounter to [email protected] Author: Herbert Scott Stevenson. Vane shear determination of the viscoelastic shear modulus of submarine sediments.

By Herbert Scott. Stevenson. Download PDF (5 MB)Author: Herbert Scott. Stevenson. Stevenson H.S. (), Vane Shear Determination of the Viscoelastic Shear Modulus of Submarine Sediments, Master of Science thesis, Texas A&M University, College by: 4.

If the shear modulus of the material is G, and no slip occurs at the surface of the vane, then the torque (per unit length) M^ required to rotate a vane of half-width a through an angle 6 is M^ =2^^a2GO. If the vane is replaced by a solid cylinder of radius a, the torque is increased, by a factor 2, to 4^^ by: ments of the shear modulus of the Sediments on Parts of the Mississippi Delta Front,” sediment U.S.

Geological Survey Open File Report, Corpus (~) = pile velocity in diameters/second Christi. An acoustical resonance method with piezoquartz vibrator was used in the experimental determination of shear elasticity modulus and a tangent of mecha Cited by: 7.

An average value of is used typically (Stewart and Randolph, ). The in situ penetrometer testing reported herein was conducted in the Nile delta in water depths of 25 to m and was for the purposes of nt stratigraphy and undrained shear strength were required at locations along the length of the pipeline.

AN ANALYSIS OF DATA OBTAINED FROM VANE SHEAR TESTS OF RECENT MARINE SEDIMENT George Edmund Voelker dAVAL POSTGRADUATE SCHOOL KONTEBM, CALIF. 1 V" 1 1 IHTf r'-j Monterey, California f-i^K^ AN ANALYSIS OF DATA OBTAINED FROM VANE SHEAR TESTS OF RECENT MARINE SEDIMENT by George Edmund Voelker Thesis.

fore, mechanical response, is the same in all directions. Young’s modulus and the shear modulus in an isotropic material can be related to each other by the expression 2(1) G E o = +, [Eq] where o is Poisson’s ratio. This important ratio is discussed at greater length in sec-tion A material that is Hookean in extension is usually Hookean in Size: KB.

Shear creep parameters of simulative soil for deep-sea sediment. Abstract. Based on mineral component and in-situ vane shear strength of deep-sea sediment, four kinds of simulative soils were prepared by mixing different bentonites with water in order to find the best simulative soil for the deep-sea sediment collected from the Pacific C-C by: Full text of "Determination of undrained shear strength of marine clays by combined vane and direct shear other formats MRUYIOIOXUBMRY MAimRfiAftMESCHtOl DETERMINATION OF UNDRAIMED SHEAR STRENGTH OF MARINE CLAYS BY COMBINED VANE AND DIRECT SHEAR ANALYSIS BY JAMES EDWARD FOSTER 'I A thesis submitted.

Surface wave-induced bottom pressure fluctuations produce shear stresses in soft muddy bottom sediments that cause the sediments to undergo oscillatory motion. This motion can be described as a “mud-wave” and causes surface wave properties to vary from those that occur over a rigid by: Field vane shear tests were carried out at five locations over the entire treatment area after the completion of the electrokinetic treatment.

Figure shows the shear strength profile of treated soil compared to the original shear strength profile. The original undrained shear strength of the soil increased linearly with depth from 5 to 13 kPa from depths of 2 to 6 m.

The strength behavior of siliciclastic sedi- ments with depth in the subsurface marine environment is more predictable than that of carbonate sediments.

Shear strength in silici- clastic sediments gradually increases with depth, reaching a mean value of 10 kPa at 6 m, while shear strength in carbonate sediments tends to vary considerably and significantly Cited by: Shear creep parameters of simulative soil for deep-sea sediment bentonite with water based on the in situ vane shear strength of deep-sea sediments.

A nonlinear viscoelastic fluid. The complex shear modulus of solid 4He exhibits an anomaly in the same temperature region where torsion oscillators show a change in period.

We propose that the observed stiffening of the shear modulus with decreasing temperature can be well described by the response of glassy components inside of solid 4He. Since glass is an anelastic material, we utilize the viscoelastic Cited by: 6.

modulus response was obtained in some cases (Fig. 4a) in particular f or concentrated sediments which have been sheared at lower shear rates. However, the nor malized loss modulus. Shear band propagation (as opposed to instantaneous failure) has been observed experimentally using vane shear tests and trapdoor tests with the shear.

Influence of Shear Rate on Undrained Vane Shear Strength of Organic Harbor Mud Benjamin Friedrich Schlue, Ph.D.1; Tobias Moerz, Ph.D.2; and Stefan Kreiter, Ph.D.3 Abstract: Dredging operations in European harbors for maintenance of navigable water depth produce vast amounts of harbor mud.

Between andthe second largest harbor construction project in File Size: KB. Determination of shear creep compliance of linear viscoelastic solids by instrumented indentation when the contact area has a single maximum.

Journal of Materials Research, Vol. 27, Issue. 12, p. Cited by:   A special strain gage called the ‘shear gage’ was developed for composite materials testing with notched shear specimens.

The shear-gage records the average shear strain across the entire test section between the notches of the losipescu and compact shear specimens rather than just sampling the shear strain over a small region in the center of the Cited by: A series of laboratory vane shear tests was performed on sedimented samples of kaolinite and slaked Pierre shale to determine the effects of shear rate and vane dimensions on measured strength.

Results of the tests were expressed in terms of shear strength on a vertical plane and were plotted versus average shear rate.