Geotechnics, Vol XIII, No. 3/2021
Goldfeld I.Z.
Goldfeld I.Z., 2021. Implementation of “the golden section” principles in laboratory tests of foundation soils. Geotechnics, Vol. XIII, No. 3, pp. 66–78, https://doi.org/10.25296/2221-5514-2021-13-3-66-78.
The publication shows the possibility of using the principles of “the golden section” (GS) in the processing of laboratory tests of the soil properties used for foundations. According to the author, the concept of GS in nature, art, science and technology, known for centuries, should have its place in geotechnics. The ways of using GS principles in geotechnical analysis of the results of laboratory determinations of physical and mechanical properties of soils to predict the performance of foundations are proposed. The recommended procedures are considered to be the final verification of the linear approximation of test diagrams, separation of the phase regions operation and fixation of basic parameters therein, ranging from the indexes of deformability and strength properties of soils to the indexes of foundation tests in general, including proper weight of assembly facilities and asymptotically predicted ultimate loads. This approach makes it possible to take into account the testing technology, the type of instrumentation and mounting means and, to a certain extent, to fill in the statistics. For objectivity, experiments to determine different properties of soils, carried out by different organizations according to the usual thematic standards, were used. Additional application of GS principles confirmed the fundamental rules of data processing, and in addition — in some cases allowed to reduce the number of loading steps and to facilitate the statistical correction of the given parameters. The commonality of the processing of tests of different parameters of the ground with the involvement of GS confirms the intra-natural unity of its deformation and fracture mechanisms. In addition, the argument of “angular linearization”
of the basic curvilinear test graph is confirmed and recommended: it is the one that allows obtaining the value of asymptotic deviator stress in the ground deformation models.
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IGOR Z. GOLDFELD
International Association of Foundation Contractors; Moscow, Russia; Igoris36@gmail.com
Address: Bld. 5, Pde 1, Bolshaya Academicheskaya St., 127299, Moscow, Russia