Analytical solution for displacement-dependent active earth pressure considering the stiffness of cantilever retaining structure in cohesionless soil

Computers and Geotechnics, Год журнала: 2024, Номер 170, С. 106258 - 106258

Опубликована: Апрель 4, 2024

Язык: Английский

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Impact of Transient Infiltration on the Ultimate Bearing Capacity of Obliquely and Eccentrically Loaded Strip Footings on Partially Saturated Soils

International Journal of Geomechanics, Год журнала: 2022, Номер 23(2)

Опубликована: Ноя. 22, 2022

Soils above the groundwater table and near ground surface are often partially saturated, changes in degree of saturation matric suction caused by infiltration may have substantial effects on stability geotechnical systems. This work evaluates significant effect transient flow ultimate bearing capacity strip footings founded unsaturated soils under simultaneous actions vertical horizontal loads moment using lower-bound theorems finite-element limit analysis incorporation second-order cone programming. The unified effective stress theory is incorporated into soil yield function to model saturated state, closed-form solution for one-dimensional adopted so as evaluate tempo-spatial variations stress. For both sand clay underlying soils, it found that increase time leads a notable decrease size normalized failure envelopes either obliquely or eccentrically loaded shallow foundations. impact also observed be greater compared with deposits due contribution higher induced

Язык: Английский

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Seismic bearing capacity of shallow foundations subjected to inclined and eccentric loading using modified pseudo-dynamic method

Transportation Geotechnics, Год журнала: 2023, Номер 40, С. 100979 - 100979

Опубликована: Март 21, 2023

Язык: Английский

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Seismic combined bearing capacity of strip footings on partially saturated soils using lower bound theorem of finite element limit analysis and second-order cone programming

Computers and Geotechnics, Год журнала: 2023, Номер 157, С. 105327 - 105327

Опубликована: Март 2, 2023

Язык: Английский

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Evaluation of the Active and Passive Pseudo-dynamic Earth Pressures using Finite Element Limit Analysis and Second-order Cone Programming

Geotechnical and Geological Engineering, Год журнала: 2023, Номер 41(3), С. 1921 - 1936

Опубликована: Янв. 23, 2023

Язык: Английский

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Bearing capacity of footings on geosynthetic-reinforced soils under combined loading

Geosynthetics International, Год журнала: 2023, Номер 31(5), С. 568 - 596

Опубликована: Июнь 19, 2023

In this study, the ultimate bearing capacity of shallow strip footings resting on a geosynthetic-reinforced soil mass subjected to inclined and eccentric combined loading is rigorously examined through well-established method lower bound limit analysis (LA) in conjunction with finite element (FE) second-order cone programming (SOCP). Lower formulation modified consider tensile force geosynthetic layer so as account for both pullout (sliding) rupture (structural) modes reinforcement failure. The effects several parameters, including embedment depth (u) strength (T u ) along load inclination angle (α) eccentricity (e), ratio (BCR) failure envelopes overlying foundation are discussed. results generally show marked increase surface footing against inclusion single layer. Results also reveal that second intermediate might be required bear dual performance vertical concentric scenarios more effectively support footing.

Язык: Английский

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Influence of soil fabric anisotropy on the bearing capacity of geosynthetic-reinforced foundations under eccentric and inclined loadings

SOILS AND FOUNDATIONS, Год журнала: 2024, Номер 64(3), С. 101479 - 101479

Опубликована: Июнь 1, 2024

This study aims to explore the significant impact of soil fabric anisotropy on ultimate bearing capacity eccentrically and obliquely loaded shallow foundations overlying a geosynthetic-reinforced granular deposit. For this purpose, well-established lower bound theorems limit analysis (LA) in conjunction with finite elements (FE) formulations second-order cone programming (SOCP) are exploited perform estimations. The consideration mass's inherently anisotropic response layer involves utilization distinct internal friction angles various directions. FELA framework adopted incorporates both pull-out tensile mechanisms failure reinforcement layer. marked contribution inherent impacts strength (Tu) embedment depth (u) geosynthetic mechanism, ratio (BCR), envelope obliquely/eccentrically strip footing is rigorously examined discussed. It generally concluded that for given depth, envelopes surface V-H V-M planes shrink appreciably increase as well decrease strength. Moreover, influence overall more evident case using strong compared weak geosynthetic. findings investigation demonstrate overlooking behaviour numerical would give rise undesirable non-conservative precarious designs.

Язык: Английский

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Undrained bearing capacity of obliquely-eccentrically loaded shallow foundations overlying a heterogeneous and inherently anisotropic clay deposit

Journal of Rock Mechanics and Geotechnical Engineering, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

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Seismic Bearing Capacity of Eccentrically and Obliquely Loaded Strip Footings on Geosynthetic-Reinforced Soil

International Journal of Geomechanics, Год журнала: 2023, Номер 23(6)

Опубликована: Март 21, 2023

The paper aims to evaluate the pseudostatic seismic bearing capacity of shallow foundations on geosynthetic-reinforced granular soil subjected inclined/eccentric combined loading. This is achieved through a comprehensive set lower-bound finite-element limit analysis (LB FELA) simulations adopting second-order cone programming. loading incorporated into element equilibrium equations as body forces. Both sliding and structural modes geosynthetic failure are simulated within FELA framework. influences acceleration, embedment depth (u), ultimate tensile strength (Tu) reinforcement layer mechanism, ratio, envelope overlying obliquely/eccentrically loaded foundation thoroughly investigated discussed. It generally concluded that at given depth, envelopes shrink substantially with increase horizontal acceleration reduction strength.

Язык: Английский

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Combined influence of rotated transverse anisotropy in mechanical parameters and hydraulic conductivity of soils on reliability evaluation of an unsaturated slope under rainfalls

Computers and Geotechnics, Год журнала: 2023, Номер 165, С. 105938 - 105938

Опубликована: Ноя. 22, 2023

Язык: Английский

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