The Seismic Bearing Capacity Factor for Surface Strip Footings

2016 ◽  
Author(s):  
Anindya Pain ◽  
Deepankar Choudhury ◽  
S. K. Bhattacharyya
Keyword(s):  
Bearing Capacity ◽  
Capacity Factor ◽  
Seismic Bearing Capacity ◽  
Strip Footings ◽  
Bearing Capacity Factor

scholarly journals The Static and Seismic Bearing Capacity Factor Nγ for Footings Adjacent to Slopes

2016 ◽  
Vol 158 ◽  
pp. 410-415 ◽  
Author(s):  
Orazio Casablanca ◽  
Ernesto Cascone ◽  
Giovanni Biondi
Keyword(s):  
Bearing Capacity ◽  
Capacity Factor ◽  
Seismic Bearing Capacity ◽  
Bearing Capacity Factor

Seismic Bearing Capacity Factor Considering Composite Failure Mechanism

2018 ◽  
Vol 9 (1) ◽  
pp. 65-77
Author(s):  
Swetha S Kurup ◽  
Sreevalsa Kolathayar
Keyword(s):  
Bearing Capacity ◽  
Failure Mechanism ◽  
Static Analysis ◽  
Limit Equilibrium ◽  
Failure Surface ◽  
Shallow Foundation ◽  
Capacity Factor ◽  
Composite Failure ◽  
Seismic Bearing Capacity ◽  
Bearing Capacity Factor

This article describes how the design of shallow foundation needs complete knowledge about bearing capacity. During earthquakes additional lateral force acts at the foundation bed which reduces the bearing capacity. Most of the literature present either the pseudo static analysis or assume a planar failure surface to estimate seismic bearing capacity factors. Here, a pseudo dynamic approach that considers the time dependent effect of earthquake loading is employed. A composite failure surface has been considered for a more realistic estimation of seismic bearing capacity. New expressions were formulated to arrive at the seismic bearing capacity factor, considering the forces acting on the failure wedge based on the limit equilibrium approach. The effect of soil friction angles and the seismic peak of horizontal ground accelerations on the seismic bearing capacity were studied using the proposed method. It was observed that present pseudo-dynamic analysis with a composite failure mechanism gives lower values of seismic bearing capacity factors when compared to pseud- static analysis.

scholarly journals Model experiments to assess effect of cavities on bearing capacity of two interfering superficial foundations resting on granular soil

2020 ◽  
Vol 42 (3) ◽  
pp. 222-231
Author(s):  
Djamel Saadi ◽  
Khelifa Abbeche ◽  
Rafik Boufarh
Keyword(s):  
Bearing Capacity ◽  
Experimental Approach ◽  
Efficiency Factor ◽  
Capacity Factor ◽  
Granular Soil ◽  
Test Model ◽  
Experimental Protocol ◽  
Model Experiments ◽  
Strip Footings ◽  
Bearing Capacity Factor

AbstractThe objective of this paper is to describe the effect of cavities on the bearing capacity of two interfering footings based on granular soil using an exclusively experimental approach with a test model designed in the laboratory. The experimental protocol was carried out based on the variation of several parameters such as the spacing (x) (axis to axis) between the footings, and the distance (H) between the footings and cavities and between the cavities axes (L). The results highlight the effect of cavities and the interference of two strip footings on the bearing capacity factor (q) and efficiency factor (EF). Moreover, the results revealed that, in the case wherein the distance between the footings and the cavity is greater than 3, the cavity impact is eliminated.

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