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Bearing Capacity Factors for Spread Footings on Soft Clay Stabilized with a Granular Trench
Ultimate bearing capacity (qu) of footings on undrained soft clay stabilized with a granular trench was thoroughly investigated using the upper-bound limit state plasticity failure approach with discontinuity layout optimization. The investigations were performed in a parametric fashion to determine the ultimate bearing capacity for a wide range of practical configurations (i.e., geometric and material combinations). Solutions from the limit analysis using discontinuity layout optimization (LA-DLO) have provided a deeper insight into the influence of the various design parameters and their intricate relationships. Solutions from LA-DLO simulations were compared and found largely agreeable with solutions from published analytical derived-expressions, finite element analyses, and small-scale model tests. The critical depth of the trench, which defines the cut-off whether the critical shear failure is considered shallow or deep was successfully established. This critical depth was found to significantly depend on Df/B, W/B, and ϕ. Finally, bearing capacity factors Nc, Nq, and Nγ were back-calculated and presented in a tabulated form.
Bearing Capacity Factors for Spread Footings on Soft Clay Stabilized with a Granular Trench
Ultimate bearing capacity (qu) of footings on undrained soft clay stabilized with a granular trench was thoroughly investigated using the upper-bound limit state plasticity failure approach with discontinuity layout optimization. The investigations were performed in a parametric fashion to determine the ultimate bearing capacity for a wide range of practical configurations (i.e., geometric and material combinations). Solutions from the limit analysis using discontinuity layout optimization (LA-DLO) have provided a deeper insight into the influence of the various design parameters and their intricate relationships. Solutions from LA-DLO simulations were compared and found largely agreeable with solutions from published analytical derived-expressions, finite element analyses, and small-scale model tests. The critical depth of the trench, which defines the cut-off whether the critical shear failure is considered shallow or deep was successfully established. This critical depth was found to significantly depend on Df/B, W/B, and ϕ. Finally, bearing capacity factors Nc, Nq, and Nγ were back-calculated and presented in a tabulated form.
Bearing Capacity Factors for Spread Footings on Soft Clay Stabilized with a Granular Trench
Yamin, Mohammad M. (author) / Budge, Aaron S. (author) / Petersen, David (author) / Corcoran, Colton (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 582-595
2022-03-17
Conference paper
Electronic Resource
English
Bearing Capacity Factors for Spread Footings on Soft Clay Stabilized with a Granular Trench
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