Similitude in soil-structure and soil-soil interactionReport as inadecuate

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(2016)3rd European Conference on Physical Modelling in geotechnics.1.p.43-48 Mark abstract Scaling laws are often presented as a criterion that has to be fulfilled. For example: a pile diameter should be larger than 20 times the diameter of the grains to have similitude between the model tip force and the tip force of the corresponding prototype. This paper investigates another approach: What is the mechanism that requires a certain ratio between pile diameter and grain size and can this influence be quantified? Ifso, it is sometimes possible to calculate the systematic error made and correct the results of model tests. This appeared possible for the influence of the grain size on the pile tip resistance and for the influence of viscous forces in clay. It was not possible when undrained behavior in the model corresponds with drained behavior of the prototype or in situations where flow is important and the solution of Darcy’s equation results in singularities.

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Author: Adam Bezuijen



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