Acoustical and Other Physical Properties of Marine Sediments
Abstract
This report provides the results of the research effort on the following topics: include four parts: (1) (a) The effect of cementation on the elastic properties of granular material, and (b) Seismic velocities in compacting sediments; (2) (a) The mechanics of hollow grains, and (b) Pillow basalts compaction due to grain collapse; (3) Modeling the granular structure of rocks; and (4) Anisotropic Poroelasticity and Biot's Parameters. In Part 1 a simple analytical model was developed to describe the mechanics of cemented granular material, for which a solution was obtained to model the normal and shear deformation of a cement layer with straight boundaries. In Part 2, in order to model the mechanical behavior of pillow basalts, we developed a theory for the two-dimensional deformation of hollow grains under external loading. In Part 3 the interaction of rock grains with friction and slippage is modeled using an analytical solution for plain elastic deformation of cylinders. Part 4 examines prediction of wave propagation in a submarine environment. This requires modeling the acoustic response of ocean bottom sediments which generally consists of porous granular materials partially or wholly saturated with water.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1991
- Accession Number
- ADA243532
Entities
People
- Amos Nur
Organizations
- Stanford University