Open Access
Foundation Study for Materials Test Structure
Melvin C. Hironaka,R. J. Smith +1 more
- 01 Jan 1968
- pp 489-530
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TL;DR: In this paper, the SUITABILITY of the proposed site for PLACEMENT of the SUBMERSIBLE TEST UNIT II (STU II) SERIES was evaluated.
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Abstract: A FOUNDATION STUDY WAS CONDUCTED TO DETERMINE THE SUITABILITY OF THE PROPOSED SITE FOR PLACEMENT OF THE SUBMERSIBLE TEST UNIT II (STU II) SERIES. THE PROPOSED SITE WAS AN AREA APPROXIMATELY TWO MILES SQUARE IN THE VICINITY OF 34 DEGREES 05.5'N, 120 DEGREES 43.0 W, SOME 14 MILES WEST OF SAN MIGUEL ISLAND, CALIFORNIA. EIGHT CORES WERE TAKEN TO DETERMINE THE ENGINEERING PROPERTIES OF THE SEDIMENTS IN THIS AREA. TO AID IN THE SITE EVALUATION, A BATHYMETRIC CHART WAS CONSTRUCTED USING DATA OBTAINED FROM THE PRECISION DEPTH RECORDER AND POSITIONING INSTRUMENTS ABOARD THE USS MOLALA. WITH THE RESULTING DATA FROM LABORATORY TESTS ON THE SAMPLES, COMPUTATIONS FOR BEARING CAPACITY AND SETTLEMENT WERE MADE. THE CALCULATED AVERAGE BEARING CAPACITY WAS 300 PSF. BASED ON THE APPLIED STRUCTURAL LOADING PRESSURE OF 110 PSF, THE TOTAL SETTLEMENT WAS CALCULATED TO BE 1.7 INCHES. STATISTICAL EVALUATION OF THE TEST RESULTS FORMULATED RELATIONSHIPS FOR VANE SHEAR STRENGTH AND BULK WET DENSITY THAT COULD BE USED IN SITE RECONNAISSANCE STUDIES. /ASCE/
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Citations
Evaluation of In-Situ Testing Methods in Soils.
Niaz Ahmad
- 01 Jan 1975
TL;DR: In this article, the results of extensive in-situ and laboratory tests were correlated to determine the effects of soil disturbances during sampling, storage and handling of soil samples, and it was concluded that the recommended remolding method for vane shear tests produces the residual strength.
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Initial Penetration and Settlement of Concrete Blocks into Deep-Ocean Sediments
Frank Simpson,Anton L. Inderbitzen,Atwar Singh +2 more
- 01 Jan 1974
TL;DR: In this article, two sets of concrete blocks of various shapes (a cube, a rectangular parallelepiped and a cylinder) were placed on the floor of the San Diego Trough at a water depth of 1240 m to observe their short-term and long-term settlement behavior.
4
Sampling and Preparation of Marine Sediments
Ronald C. Chaney
- 01 Jan 1991
TL;DR: Chaney et al. as discussed by the authors considered that the purpose of an offshore site investigation is to secure such information by procedures appropriate to the project and to report the findings in sufficient technical detail to provide a basis for economic studies and design decisions.
4
Long-Term Stress-Strain Behavior of a Seafloor Soil
P. J. Valent
- 01 Feb 1978
TL;DR: In this paper, a calcareous deep-sea soil from the central Caribbean was subjected to a series of consolidation, triaxial shear, and Triaxial Shear creep tests to determine its response to loadings of engineering interest, and the results indicated that material consolidated to higher stress levels than those used here (>100 kPa) and then shear loaded undrained will develop failure strains at stress levels less than 80% of short-term failure stress levels.