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Analysis of passive earth thrust in an unsaturated sandy soil using discontinuity layout optimization
This paper addresses a numerical study into passive earth pressure in an unsaturated sandy soil. The computational limit analysis method, discontinuity layout optimization (DLO), is extended to take into consideration the effect of saturation and suction on strength. The extended analysis was utilised to model a retaining wall case study using a sandy soil as a simulated backfill material and the results were compared with Rankine equations which were modified to take into account the capillary rise effect. The numerical results demonstrated that an increase of the total passive thrust up to 47%, for a frictionless wall, at ϕ′ = 30° due to the effect of partial saturation in the sandy soil.
Analysis of passive earth thrust in an unsaturated sandy soil using discontinuity layout optimization
This paper addresses a numerical study into passive earth pressure in an unsaturated sandy soil. The computational limit analysis method, discontinuity layout optimization (DLO), is extended to take into consideration the effect of saturation and suction on strength. The extended analysis was utilised to model a retaining wall case study using a sandy soil as a simulated backfill material and the results were compared with Rankine equations which were modified to take into account the capillary rise effect. The numerical results demonstrated that an increase of the total passive thrust up to 47%, for a frictionless wall, at ϕ′ = 30° due to the effect of partial saturation in the sandy soil.
Analysis of passive earth thrust in an unsaturated sandy soil using discontinuity layout optimization
Shwan Bestun (author)
2016
Article (Journal)
Electronic Resource
Unknown
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