Počet záznamů: 1
Analysis of Äspö Pillar Stability Experiment: Continuous thermo-mechanical model development and calibration
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SYSNO ASEP 0395542 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Analysis of Äspö Pillar Stability Experiment: Continuous thermo-mechanical model development and calibration Tvůrce(i) Blaheta, Radim (UGN-S) RID, SAI, ORCID
Byczanski, Petr (UGN-S)
Čermák, M. (CZ)
Hrtus, Rostislav (UGN-S)
Kohut, Roman (UGN-S) RID
Kolcun, Alexej (UGN-S) RID
Malík, Josef (UGN-S) RID
Sysala, Stanislav (UGN-S) RID, ORCIDCelkový počet autorů 8 Zdroj.dok. Journal of Rock Mechanics and Geotechnical Engineering. - : Science Press - ISSN 1674-7755
Roč. 5, č. 2 (2013), s. 124-135Poč.str. 12 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. CN - Čína Klíč. slova in situ pillar stability experiment ; model calibration by back analysis ; continuous mechanics ; damage of granite rocks ; Finite element method (FEM) Vědní obor RIV BA - Obecná matematika Institucionální podpora UGN-S - RVO:68145535 DOI 10.1016/j.jrmge.2012.10.002 Anotace The paper describes an analysis of thermo-mechanical (TM) processes appearing during the Äspö Pillar Stability Experiment (APSE). This analysis is based on finite elements with elasticity, plasticity and damage mechanics models of rock behaviour and some least squares calibration techniques. The main aim is to examine the capability of continuous mechanics models to predict brittle damage behaviour of granite rocks. The performed simulations use an in-house finite element software GEM and self-developed experimental continuum damage MATLAB code. The main contributions are twofold.First, it is an inverse analysis, which is used for (1)verification of an initial stress measurement by back analysis of convergence measurement during construction of the access tunnel and (2)identification of heat transfer rock mass properties by an inverse method based on the known heat sources and temperature measurements. Second, three different hierarchically built models are used to estimate the pillar damage zones, i.e. elastic model with Drucker–Prager strength criterion, elasto-plastic model with the same yield limit and a combination of elasto-plasticity with continuum damage mechanics. Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2014 Elektronická adresa http://www.sciencedirect.com/science/article/pii/S1674775513000103
Počet záznamů: 1