TY - GEN
T1 - Assessing the liquefaction risk reduction of reinforced soils
T2 - 3nd International Symposium on Computational Geomechanics, ComGeo 2013
AU - Gueguin, Maxime
AU - Hassen, Ghazi
AU - De Buhan, Patrick
N1 - Publisher Copyright:
© 2013 Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics. All rights reserved.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - In this contribution, an evaluation is given for the reduction of the liquefaction risk, which can be expected from reinforcing the soil by a periodic array of inclusions. Following a definition of the liquefaction risk reduction factor, the link is then established with the increase of longitudinal shear stiffness of the reinforced soil. Based on the homogenization theory for elastic periodic media, different geometries of the reinforcing inclusions are examined, with a particular focus on circular cylindrical (columnar) inclusions on the one hand, two mutually orthogonal arrays of trenches (cross trench configuration) on the other hand. A variational method based on minimum energy principles allows the derivation of theoretical lower and upper bounds for the reinforced soil longitudinal shear modulus. A comparison with results obtained from numerical simulations performed with a standard finite element code is then presented.
AB - In this contribution, an evaluation is given for the reduction of the liquefaction risk, which can be expected from reinforcing the soil by a periodic array of inclusions. Following a definition of the liquefaction risk reduction factor, the link is then established with the increase of longitudinal shear stiffness of the reinforced soil. Based on the homogenization theory for elastic periodic media, different geometries of the reinforcing inclusions are examined, with a particular focus on circular cylindrical (columnar) inclusions on the one hand, two mutually orthogonal arrays of trenches (cross trench configuration) on the other hand. A variational method based on minimum energy principles allows the derivation of theoretical lower and upper bounds for the reinforced soil longitudinal shear modulus. A comparison with results obtained from numerical simulations performed with a standard finite element code is then presented.
UR - https://www.scopus.com/pages/publications/85069968817
M3 - Conference contribution
AN - SCOPUS:85069968817
T3 - Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics
SP - 505
EP - 515
BT - Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics
A2 - Pietruszczak, S.
A2 - Pande, G.N.
PB - IC2E International Centre for Computational Engineering
Y2 - 21 August 2013 through 23 August 2013
ER -