Detail publikace

Optimization of Load-transfer Functions for a Large-diameter Pile in Multi-layered Geological Conditions via a Stochastic Search Algorithm

CHALMOVSKÝ, J.

Originální název

Optimization of Load-transfer Functions for a Large-diameter Pile in Multi-layered Geological Conditions via a Stochastic Search Algorithm

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The paper presents the combination of the load transfer method (computational model) and the genetic algorithm (optimization model) for the automated inverse analysis of instrumented pile load tests. The output of this process are the input parameters governing the shape of the load-transfer functions and thus the prediction accuracy when the load-transfer method is used as a design tool for deep foundations. The optimization problem is converted into an unconstrained task by applying the static penalty approach. Two types of measurements are considered in a newly proposed objective function: the load-displacement curve monitored in a pile head and the axial force profiles along a pile derived from strain gauges. Firstly, the local sensitivity analysis via the Design of Experiments is carried out to identify the parameters of the genetic algorithm which significantly influences the rate of convergence during the optimization process. Subsequently, a fully automated inverse analysis of the loading test of the large-diameter bored pile in multilayered geological conditions is presented. The simultaneous combination of two instrumentation sources leads to a stable unique solution with a sufficient match between the prediction and measurements despite a larger number of unknown - optimized variables.

Klíčová slova

load-transfer method; genetic algorithm; optimization; load-displacement curve; large-diameter pile

Autoři

CHALMOVSKÝ, J.

Vydáno

9. 10. 2024

Nakladatel

Budapest University of Technology and Economics

Místo

BUDAPEST

ISSN

0553-6626

Periodikum

Periodica Polytechnica - Civil Engineering

Ročník

69

Číslo

1

Stát

Maďarsko

Strany od

136

Strany do

145

Strany počet

10

URL

https://pp.bme.hu/ci/article/view/37258

Plný text v Digitální knihovně

http://hdl.handle.net/11012/250762

BibTex

@article{BUT189943,
  author="Juraj {Chalmovský}",
  title="Optimization of Load-transfer Functions for a Large-diameter Pile in Multi-layered Geological Conditions via a Stochastic Search Algorithm",
  journal="Periodica Polytechnica - Civil Engineering",
  year="2024",
  volume="69",
  number="1",
  pages="136--145",
  doi="10.3311/PPci.37258",
  issn="0553-6626",
  url="https://pp.bme.hu/ci/article/view/37258"
}