Title: A probabilistic approach to estimation of the ultimate load of end-bearing piles on settlement criterion // Magazine of Civil Engineering. – 2020. – № 4 (96). — С. 70-78
Creators: Solovyev S. A.
Imprint: 2020
Collection: Общая коллекция
Subjects: Строительство; Строительная механика; support piles; end piles; pile draft criteria; limit loads; pile reliability; probabilistic approach; pile bearing capacity; опорные сваи; торцевые сваи; предельные нагрузки; надежность свай; вероятностный подход; несущая способность свай; критерии осадки свай
UDC: 624.04
LBC: 38.112
Document type: Article, report
File type: PDF
Language: English
DOI: 10.18720/MCE.96.6
Rights: Свободный доступ из сети Интернет (чтение, печать, копирование)
Record key: RU\SPSTU\edoc\66017

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Group: Anonymous

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Pile foundation is one of the most common types of foundations in the presence of soft soils. The safety of the entire structure depends on the pile foundation safety. Stochastic (probabilistic) modeling of load-bearing elements is a modern trend in the quantitative structural safety assessment. The article describes the probabilistic approach to estimate the bearing capacity (ultimate load) of end-bearing piles on settlement criterion. Design load and elastic modulus of a pile material are the main stochastic (random) parameters that determine the probability of end-bearing pile failure. The graphical model of failure and safety areas is proposed, on the basis of which conclusions can be drawn about the allowable load during the design and inspection of pile foundations. The numerical example shows that the method of pile reliability analysis based on FOSM (First Order Second Moment) gives similar results as the method on the basis on FORM (First Order Reliability Method). Therefore, for an accurate evaluation of the reliability index (according to the considered mathematical model), the first iteration of the FORM method is sufficient. Experimental modeling of pile behavior showed good convergence of the theoretical result with the experimental result based on the Monte Carlo method. For a comprehensive reliability analysis of end-bearing piles, it is necessary to consider a pile as a system (in terms of reliability theory).

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Table of Contents

  • A probabilistic approach to estimation of the ultimate load of end-bearing piles on settlement criterion
    • 1. Introduction
    • 2. Methods
    • 3. Results and Discussion
    • 4. Conclusions

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