Publication detail

Anisotropy of mechanical properties of greywacke

HAVLÍČKOVÁ, D. ZÁVACKÝ, M. KRMÍČEK, L.

Original Title

Anisotropy of mechanical properties of greywacke

Type

journal article - other

Language

English

Original Abstract

The paper brings description of the mechanical properties of greywacke sampled in Kobeřice quarry (Lower Carboniferous Culm Basin, Drahany Uplands, Bohemian Massif). Anisotropy of mechanical properties was identified from series of laboratory tests of oriented samples using following procedures: (1) indirect tensile testing, (2) uniaxial compressive testing and (3) triaxial compressive testing. Parameters of Mohr-Coulomb and Hoek-Brown failure criteria were determined by evaluation of the obtained laboratory data. The tested greywacke performed relatively high uniaxial compressive strength, roughly 200 MPa. Better fitting by Mohr-Coulomb criterion was identified than by Hoek-Brown one within the investigated interval of confining stresses (0-15 MPa). In addition, Schmidt hammer test was carried out with comparison of several correlation relationships to uniaxial compressive strength which were compared with directly obtained value from laboratory tests.

Keywords

greywacke, uniaxial compressive strength, triaxial compressive strength, splitting tensile strength, failure criterion, Schmidt hammer, correlations

Authors

HAVLÍČKOVÁ, D.; ZÁVACKÝ, M.; KRMÍČEK, L.

Released

29. 3. 2019

Publisher

Technical University of Ostrava

Location

Ostrava

ISBN

1802-5420

Periodical

Geoscience Engineering

Year of study

65

Number

1

State

Czech Republic

Pages from

46

Pages to

52

Pages count

7

URL

http://gse.vsb.cz/ojs/index.php/GSE

BibTex

@article{BUT152167,
  author="Dagmar {Havlíčková} and Martin {Závacký} and Lukáš {Krmíček}",
  title="Anisotropy of mechanical properties of greywacke",
  journal="Geoscience Engineering",
  year="2019",
  volume="65",
  number="1",
  pages="46--52",
  doi="10.31490/gse-2019-0005",
  issn="1802-5420",
  url="http://gse.vsb.cz/ojs/index.php/GSE"
}