Abstract

MARTINEZ-GALVAN, Sergio Antonio  and  ROMO-ORGANISTA, Miguel Pedro. 3D Bearing Capacity of Structured Cells Supported on Cohesive Soil: Simplified Analysis Method. Ing. invest. y tecnol. [online]. 2013, vol.14, n.3, pp.399-412. ISSN 2594-0732.

In this paper a simplified analysis method to compute the bearing capacity of structured cell foundations subjected to vertical loading and supported in soft cohesive soil is proposed. A structured cell is comprised by a top concrete slab structurally connected to concrete external walls that enclose the natural soil. Contrary to a box foundation it does not include a bottom slab and hence, the soil within the walls becomes an important component of the structured cell. This simplified method considers the three-dimensional geometry of the cell, the undrained shear strength of cohesive soils and the existence of structural continuity between the top concrete slab and the surrounding walls, along the walls themselves and the walls structural joints. The method was developed from results of numerical-parametric analyses, from which it was found that structured cells fail according to a punching-type mechanism.

Keywords : foundations; plasticity; bearing capacity; simple method of analysis; penetration strength; structured cell; caisson.

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