Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

Abstract

A research of the previous years has shown that on processes taking place in ground has a sufficient influence a background level of own ground microvibrations - microseism. This fact changes a view about ground model, explaining a difference in ground behavior at its studying in laboratorial and field conditions. In connection with that there was offered a new mechanical ground model that detects not only and influence of mechanical behavior of ground skeleton but also wave processes occurring in it. Conducted calculations of models shoved that offered ground model allows to describe processes observed in practice and not fitting in frames of the previous models. To these processes should be first referred such processes as: - Existence of “unlimited vibrations” of ground points at limited impacts; - Existence of advantage direction of oscillations propagation or isotopic ground (determined by us as “dynamic anisotropy”).

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-26-2001

Document Version

Final Version

Rights

© 2001 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 26th, 12:00 AM Mar 31st, 12:00 AM

Influence of Seismic Noises Background Intensity on Waves Propagation Speed

San Diego, California

A research of the previous years has shown that on processes taking place in ground has a sufficient influence a background level of own ground microvibrations - microseism. This fact changes a view about ground model, explaining a difference in ground behavior at its studying in laboratorial and field conditions. In connection with that there was offered a new mechanical ground model that detects not only and influence of mechanical behavior of ground skeleton but also wave processes occurring in it. Conducted calculations of models shoved that offered ground model allows to describe processes observed in practice and not fitting in frames of the previous models. To these processes should be first referred such processes as: - Existence of “unlimited vibrations” of ground points at limited impacts; - Existence of advantage direction of oscillations propagation or isotopic ground (determined by us as “dynamic anisotropy”).