ABSTRACT

Among the various strategies to mitigate the effects of soil liquefaction one of the most effective is the design of deep foundations. The designs of piles in liquefiable soils are too often concerned with the only axial bearing capacity, addressed by simply neglecting pile resistance in the liquefiable layer. This approach is inadequate to properly face the complexity of the problem. In the present paper we intend to examine this theme throughout its multiple aspects. We have synthesized a design procedure of analysis that has been already applied in some projects in different areas of Emilia-Romagna region characterized by high risk of liquefaction. The proposed design procedure is based on the most updated theories and design references concerning piles in liquefiable soil, such as those of Cubrinovsky, Olson & Stark, Rollins, Bhattacharya, Madabhushi and others, primarily referring to CPTu.