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GEOPHYSICAL METHODS - POSSIBILITIES FOR DEFINING COMPACTNESS AND PHYSICAL - MECHANICAL CHARACTERISTICS OF ROCKS

Todor Delipetrev

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s06.111View metrics

Abstract

This paper presents the possibilities of the geophysical methods for determination of the physical and mechanical characteristics of the rocks. Geophysical investigations are measurements of the physical parameters (re sistivity, spreading velocity of seismic waves, density, magnetism, water permeability etc.) in order to understand the structure and lithological features of the rock masses. Refraction and reflective seismic investigations are based on determination of the seismic wave velocity. There is direct connection between Vp and Vs and the location of the fractured zones in the rock masses. Electrical methods make it possible to define or separate compact from fractured zones of the rock complexes according the electrical properties of the environment. The difference between electrical properties of th e individual materials and rocks in the area enabled the use of geoelectrical methods to define the contact zones between various lithological structures. Today, there are m odern geophysical methods (e.g. geo-radar) with greater possibilities for exploration of the rock masses even at small depth.

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Publication details

Title
GEOPHYSICAL METHODS - POSSIBILITIES FOR DEFINING COMPACTNESS AND PHYSICAL - MECHANICAL CHARACTERISTICS OF ROCKS
Authors
Todor Delipetrev
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
Seismic refraction methodseismic reflection methodspecific electric resistivity
References7

  1. Delipetrov, T., Principles of Geophysics, textbook, Stip, 2003

  2. Jakosky J.J., Geophysical Investigations, textbook, Subotica, 1960.

  3. Slimak, S., Engineering Geophysics, textbook, Beograd, 1996

  4. www. earthquake.usgs.gov

  5. www.geosurvey.co.nz

  6. www.enviroscan.com

  7. www.isgs.illinois.edu

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