Effects of Excavation Damage on the Electrical Properties of Rock Mass

Pekka Kantia, Risto Kiuru, Mikael Rinne

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

1 Lataukset (Pure)

Abstrakti

Electrical and Electromagnetic (EM) methods have been used for characterization of Excavation Damage Zone (EDZ) in conjunction with long-term safety evaluation of geological disposal of spent nuclear fuel. Physical properties of the rock have been tested in laboratory to characterise the property changes related to EDZ. EM research has focused around Ground Penetrating Radar (GPR) utilizing GPR EDZ method, developed for excavation quality control in means of EDZ extend. For 20 specimens, resistivity, relative dielectric permittivity (ε r ) as well as high frequency scattering parameters (electrical conductivity and ε r ) were measured. Induced Polarization (IP) values were calculated from resistivity data. Resistivity, IP and ε r , was produced to support the use of GPR image analysis and the GPR EDZ method. Results were analysed to reveal links between εr and conductivity, and to analyse possible depth dependencies. A positive association between electrical conductivity and ε r was observed. Changes in the electrical properties linked to shallow depths and visual EDZ features were observed, which seems to validate the theoretical basis of the GPR EDZ method. Electrical property data allows further modelling, development and assessment of the GPR EDZ method.
AlkuperäiskieliEnglanti
OtsikkoEUROCK 2018: Geomechanics and Geodynamics of Rock Masses
AlaotsikkoProceedings of the 2018 European Rock Mechanics Symposium (Eurock 2018), Saint Petersburg, Russia, 22-26 May 2018
ToimittajatVladimir Litvinenko
Sivut647-652
Sivumäärä6
Vuosikerta1
ISBN (elektroninen)978-0-429-46177-4
TilaJulkaistu - 22 toukokuuta 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaISRM European Rock Mechanics Symposium - Saint Petersburg, Venäjä
Kesto: 22 toukokuuta 201826 toukokuuta 2018

Conference

ConferenceISRM European Rock Mechanics Symposium
LyhennettäEUROCK
MaaVenäjä
KaupunkiSaint Petersburg
Ajanjakso22/05/201826/05/2018

Sormenjälki Sukella tutkimusaiheisiin 'Effects of Excavation Damage on the Electrical Properties of Rock Mass'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

  • Projektit

    • 1 Päättynyt

    ORMID: Reaaliaikainen riskinhallinta syvissä kaivoksissa

    Rinne, M., Uotinen, L., Mishra, R., Kantia, P., Siren, T., Caballero Hernandez, E., Janiszewski, M., Kiuru, R. & Szydlowska, M.

    01/03/201631/12/2019

    Projekti: Academy of Finland: Other research funding

    Siteeraa tätä

    Kantia, P., Kiuru, R., & Rinne, M. (2018). Effects of Excavation Damage on the Electrical Properties of Rock Mass. teoksessa V. Litvinenko (Toimittaja), EUROCK 2018: Geomechanics and Geodynamics of Rock Masses : Proceedings of the 2018 European Rock Mechanics Symposium (Eurock 2018), Saint Petersburg, Russia, 22-26 May 2018 (Vuosikerta 1, Sivut 647-652)