Effectiveness of Random Field Approach in Serviceability Limit State Analysis of Strip Foundation - Publikacja - MOST Wiedzy

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Effectiveness of Random Field Approach in Serviceability Limit State Analysis of Strip Foundation

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This work conducts a probabilistic inquiry on how the variability of the parameter defining soil deformability affects the settlement of the foundation located on the soil. The analysis addresses the random foundation model to relevantly estimate the probability of allowable deflection exceedance. The constitutive model parameter is based either on a single random variable or a random field. The computations incorporate direct Monte Carlo sampling and the variance reduction techniques, i.e. Stratified Sampling and Latin Hypercube Sampling. The work focuses on soil parameter modelling by random fields defined by various correlation functions. One of the analytical means is the application of a non-homogeneous function capable of reflecting the soil strata. The probabilistic methods proposed in the paper are tested on a standard example of a foundation strip featuring load eccentricity. It is proved that the modelling mode of the soil—a single variable or a random field—substantially affects the results, i.e. foundation settlements. It was detected that incorporating random fields in soil analysis allows for a valid reliability assessment of a foundation in respect to Serviceability Limit State. The relevantly adjusted correlation functions of random fields allow for a realistic subsoil analysis even in the case of a limited in situ measurement database.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Geotechnical and Geological Engineering nr 40, strony 4705 - 4720,
ISSN: 0960-3182
Język:
angielski
Rok wydania:
2022
Opis bibliograficzny:
Winkelmann K., Żyliński K., Korzec A., Górski J.: Effectiveness of Random Field Approach in Serviceability Limit State Analysis of Strip Foundation// Geotechnical and Geological Engineering -Vol. 40,iss. 9 (2022), s.4705-4720
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s10706-022-02179-6
Weryfikacja:
Politechnika Gdańska

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