RESISTOR NETWORK AS MODELING TOOL FOR FRACTURE DETECTION IN CRYSTALLINE ROCKS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10406090" target="_blank" >RIV/00216208:11310/19:10406090 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9FHPgWvU9F" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9FHPgWvU9F</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13168/AGG.2019.0039" target="_blank" >10.13168/AGG.2019.0039</a>
Alternative languages
Result language
angličtina
Original language name
RESISTOR NETWORK AS MODELING TOOL FOR FRACTURE DETECTION IN CRYSTALLINE ROCKS
Original language description
The rock massif with sparse fracture network can be considered as highly inhomogeneous. The fractures enable electric current to flow in otherwise relatively non-conductive country rock. The measured apparent resistivity in such a medium strongly depends on the mutual position of the individual electrodes in relation to the conductive fractures. Commonly used 2D resistivity models are built up by rectangular blocks with finite dimensions and characterized by their resistivity values. The fractures are however very thin compared to the model block size. Electrical resistivity of fractures can be in this case modelled only by reduction of resistivity value in the individual blocks containing fractures. We have developed a resistor-network model where the medium is replaced by discrete 2D orthogonal resistors lattice. Instead of resistivity blocks this model is built up by individual resistors which are characterized by their resistance value. The proposed resistor network model can be used for evaluating the electric resistivity measurements in underground storage monitoring projects for the interpretation of the ERT measurements carried out directly on the surface of crystalline rocks with individual fractures. The model can be used for modelling the artificial conductors as well. The effect of fractures and fracture zones is presented together with an example from real measurement in an underground tunnel.
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
10505 - Geology
Result continuities
Project
<a href="/en/project/LM2010008" target="_blank" >LM2010008: CzechGeo/EPOS ? Distributed system of permanent observatory measurements and temporary monitoring of geophysical fields in the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
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
16
Issue of the periodical within the volume
4
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
7
Pages from-to
465-471
UT code for WoS article
000500942800012
EID of the result in the Scopus database
2-s2.0-85077872764