TY - GEN
T1 - Tunnel excavation in low permeability ground
T2 - ISRM International Symposium - EUROCK 2016
AU - Guayacán-Carrillo, L. M.
AU - Seyedi, D.
AU - Sulem, J.
AU - Ghabezloo, S.
AU - Noiret, A.
AU - Armand, G.
N1 - Publisher Copyright:
© 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The pore pressure evolution induced by excavation of drifts is analyzed by means of a fully coupled hydro-mechanical finite element simulation. Special emphasis is given to anisotropic initial stress state and anisotropy of the elastic parameters of the rock. The main goal is to simulate the main trends of the pore pressure evolution with a simple model taking into account the influence of the face advance and the inherent anisotropy of the material. It is shown that depending upon the permeability of the rock and the degree of anisotropy of the material, strong overpressures can be induced before the passage of the face.
AB - The pore pressure evolution induced by excavation of drifts is analyzed by means of a fully coupled hydro-mechanical finite element simulation. Special emphasis is given to anisotropic initial stress state and anisotropy of the elastic parameters of the rock. The main goal is to simulate the main trends of the pore pressure evolution with a simple model taking into account the influence of the face advance and the inherent anisotropy of the material. It is shown that depending upon the permeability of the rock and the degree of anisotropy of the material, strong overpressures can be induced before the passage of the face.
UR - https://www.scopus.com/pages/publications/85060976680
U2 - 10.1201/9781315388502-79
DO - 10.1201/9781315388502-79
M3 - Conference contribution
AN - SCOPUS:85060976680
T3 - ISRM International Symposium - EUROCK 2016
SP - 463
EP - 467
BT - ISRM International Symposium - EUROCK 2016
PB - International Society for Rock Mechanics
Y2 - 29 August 2016 through 31 August 2016
ER -