Upper Bound Solution for the Bearing Capacity of Submerged Jointed Rock Foundations

Imani, Meysam; Fahimifar, Ahmad; Sharifzadeh, Mostafa

doi:10.1007/s00603-011-0215-9

Cited by 22 publications

(3 citation statements)

References 7 publications

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“…Important studies were carried out to assess ultimate bearing capacity of rough strip footings rest upon rock masses [12][13][14][15][16][17]. Nevertheless, the authors are not aware of any published paper about the bearing capacity of two interfering foundations resting on a modified Hoek-Brown material.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on the bearing capacity of two interfering strip footings resting on a rock mass

Javid

Fahimifar

Imani

2015

Computers and Geotechnics

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Section: Introductionmentioning

confidence: 99%

Numerical investigation on the bearing capacity of two interfering strip footings resting on a rock mass

Javid

Fahimifar

Imani

2015

Computers and Geotechnics

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“…Recent studies focused on seepage, by applying the pseudostatic approach where the pore pressure was included as external forces in the system. Various analyses include the stability of slopes in soils (Veiskarami and Fadaie 2017); rocks (Saada et al 2012); the bearing capacity of rock (Galindo et al 2020); soil (Veiskarami and Kumar 2012;Kumar and Chakraborty 2013;Veiskarami and Habibagahi 2013); and joined rock mass (Imani et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Influence of the groundwater level on the bearing capacity of shallow foundations on the rock mass

Alencar

Galindo

Melentijević

2021

Bull Eng Geol Environ

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The presence of the groundwater level (GWL) at the rock mass may significantly affect the mechanical behavior, and consequently the bearing capacity. The water particularly modifies two aspects that influence the bearing capacity: the submerged unit weight and the overall geotechnical quality of the rock mass, because water circulation tends to clean and open the joints. This paper is a study of the influence groundwater level has on the ultimate bearing capacity of shallow foundations on the rock mass. The calculations were developed using the finite difference method. The numerical results included three possible locations of groundwater level: at the foundation level, at a depth equal to a quarter of the footing width from the foundation level, and inexistent location. The analysis was based on a sensitivity study with four parameters: foundation width, rock mass type (mi), uniaxial compressive strength, and geological strength index. Included in the analysis was the influence of the self-weight of the material on the bearing capacity and the critical depth where the GWL no longer affected the bearing capacity. Finally, a simple approximation of the solution estimated in this study is suggested for practical purposes.

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“…Applying a similar approach, in recent years, studies have been published where the pore pressure has been included as an external force, analyzing the slope stability in soil [12] and rock [13], and affecting the bearing capacity of the shallow foundation on soil [14][15][16] and in jointed rock mass [17]. In foundations with large widths such as dams, the seepage tends to present an almost horizontal flow in the influence area of the foundation, as has been possible to verify in real cases [18].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Bearing Capacity of Foundations on Rock Masses Subjected to Seismic and Seepage Loads

et al. 2020

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It is usual to adopt the seismic force acting as an additional body force, employing the pseudo-static hypothesis, when considering earthquakes in the estimation of the bearing capacity of foundations. A similar approach in seepage studies can be applied for the pore pressure’s consideration as an external force. In the present study, the bearing capacity of shallow foundations on rock masses considering the presence of the pseudo-static load was developed by applying an analytical solution for the Modified Hoek and Brown failure criterion. Calculations were performed adopting various inclinations of the load and the slope on the edge of the foundation, as well as different values of the vertical and horizontal components of the pseudo-static load. The results are presented in the form of charts to allow an affordable and immediate practical application for footing problems in the event of seismic loads or seepages. Finally, and to validate the analytical solution presented, a numerical study was developed applying the finite difference method to estimate the bearing capacity of a shallow foundation on a rock mass considering the presence of an additional horizontal force that could be caused by an earthquake or a seepage.

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Upper Bound Solution for the Bearing Capacity of Submerged Jointed Rock Foundations

Cited by 22 publications

References 7 publications

Numerical investigation on the bearing capacity of two interfering strip footings resting on a rock mass

Numerical investigation on the bearing capacity of two interfering strip footings resting on a rock mass

Influence of the groundwater level on the bearing capacity of shallow foundations on the rock mass

Assessment of the Bearing Capacity of Foundations on Rock Masses Subjected to Seismic and Seepage Loads

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