EXPERIMENTAL STUDY OF ROCK RUPTURES SHEAR STRENGTH ANISOTROPY
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00127345" target="_blank" >RIV/00216224:14310/22:00127345 - isvavai.cz</a>
Result on the web
<a href="https://www.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=431" target="_blank" >https://www.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=431</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13168/AGG.2022.0001" target="_blank" >10.13168/AGG.2022.0001</a>
Alternative languages
Result language
angličtina
Original language name
EXPERIMENTAL STUDY OF ROCK RUPTURES SHEAR STRENGTH ANISOTROPY
Original language description
Joints significantly reduce rock cohesion compared to unfractured rock, but the question is what effect the possible anisotropy of the shear strength of different types of rupture has on possible subsequent failure. Both natural samples of granodiorite with natural joints and fault surfaces and gypsum models have been tested on the Matest A129 Rock shear box apparatus. The shear strength of preexisting ruptures was measured under a fixed normal stress component. The anisotropy of the shear strength of the joints and fault surfaces reached more than 60 % of maximum strength, which is a very important value for solving structural loads. The shear strength was analyzed with polar plots. The pattern of the real joints typically showed a teardrop shape with one peak of strength in a certain direction and a minimum in the opposite direction. On the contrary, striated fault surfaces are characterized by two axial directions of minimal shear strength, i.e., longitudinal and transverse, and by two axial oblique directions with maximal shear strength, so the strength distribution in the polar graph has a four-cornered shape. The study showed that the anisotropy of the shear strength of various types of ruptures is their important feature.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10500 - Earth and related environmental sciences
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Geodynamica et Geomaterialia
ISSN
1214-9705
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
7
Pages from-to
111-117
UT code for WoS article
000821862200002
EID of the result in the Scopus database
2-s2.0-85133143746