2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 16 Intl. Symp on Mathematics, Modelling and Geomechanics
| Editors: | F. Kongoli, E. Aifantis, T. Vougiouklis, A. Bountis, P. Mandell, R. Santilli, A. Konstantinidis, G. Efremidis. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2022 |
| Pages: | 235 pages |
| ISBN: | 978-1-989820-64-3(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Gradient modeling for cavities in geomechanics
Chengzhi Qi1;1BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE, Beijing, China;
Type of Paper: Keynote
Id Paper: 304
Topic: 51
Abstract:
The gradient approach is applied to discuss disintegration and size effects in cavities and deep level tunnels in geomechanics. Previous results of classical theories are revisited and further extended by adjusting the newly introduced gradient coefficient which multiplies the gradient term and accounts for nonlocality and underlying microstructural heterogeneity. Qualitative comparison with related observations is discussed.
Keywords:
Sustainable building materials;References:
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G. Efremidis, N. Pugno and E.C. Aifantis, A proposition of a “self-consistent” gradient theory. J. Mech. Behav. Mater. 19, 15-29, 2009.
H.X. Chen, C.Z. Qi, S. Wang and M.Y. Wang, A simple gradient model for zonal disintegration of the surrounding rock around a deep circular tunnel, Tunnel. Undergr. Space Technol. 91, 103006, 2019. https://doi.org/10.1016/j.tust.2019/103006.