Resumo

AVILES LOPEZ, Javier  e  PEREZ ROCHA, Luis Eduardo. Presiones dinámicas del suelo en lumbreras. Ing. sísm [online]. 2011, n.85, pp.01-31. ISSN 0185-092X.

A boundary method to compute the soil pressures and the associated forces produced by earthquakes in deeply embedded large-diameter shafts is presented. The system response to vertically propagating shear waves is constructed by means of wave mode expansions using the thin layer method. The solution fulfills rigorously the compatibility conditions (displacements and forces) between soil and shaft, as well as the free-surface and rigid-bedrock conditions. For seismically excited shafts, the relative importance of the wall flexibility and the supporting condition is evaluated; a set of design tables to compute the shear and moment distributions with depth are also constructed.

Palavras-chave : Soil dynamic pressure; soil-structure interaction; shear force; bending moment; earthquake response.

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