Accession Number : AD0767682

Title :   An Analysis of Data Obtained from Vane Shear Tests of Recent Marine Sediment.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Voelker,George Edmund

Report Date : JUN 1973

Pagination or Media Count : 87

Abstract : An analysis has been conducted of laboratory vane shear torque vs. rotation curves for 48 marine sediment samples from the Monterey Submarine Fan, made at the Naval Postgraduate School, and for 9 samples from the San Diego Trough, provided by other investigators. Particular emphasis was given to the first 20 degrees of rotation, since this corresponds to the elastic portion of the curve. By conducting the tests to rotations of 180 degrees, remolded strength of the sediment was determined. Values of maximum shear strength, remolded strength, sensitivity, and initial slope of the curve are plotted as functions of various mass physical and textural properties. Values of initial slope are also compared with values of dynamic shear moduli. The results indicate that in-situ tests are preferable for obtaining relationships between strength parameters and other properties. Suggestions have been made for improving the reliability and reproducibility of the laboratory tests. (Author)

Descriptors :   (*MARINE GEOLOGY, *SOIL MECHANICS), (*OCEAN BOTTOM, SOIL MECHANICS), TEST EQUIPMENT, DENSITY, MOISTURE, PARTICLE SIZE, SAND, SILT, CLAY, THESES, PACIFIC OCEAN, CALIFORNIA

Subject Categories : Physical and Dynamic Oceanography
      Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE