Publication result detail

The load-transfer method as a tool for determining the load-displacement curve of piles

CHALMOVSKÝ, J.; RAČANSKÝ, V.; KOUDELA, P.; ZDRAŽIL, K.

Original Title

The load-transfer method as a tool for determining the load-displacement curve of piles

English Title

The load-transfer method as a tool for determining the load-displacement curve of piles

Type

WoS Article

Original Abstract

The paper presents two applications (software packages) in which the load-transfer method is used for axially loaded Kelly drilled bored piles and displacement ductile iron piles. In the first, the ultimate friction is related to the effective stress via the so-called beta method. The beta method is refined into three stages to cover the variety of soils typical of Central Europe. For the driven piles, a different approach is presented in which the ultimate shaft friction is related to the reference hammering time. The recorded hammering time profile is fed directly into the software based on the load-transfer method. Analyses of five loading tests are presented proving that the load transfer method in combination with the beta method or the recorded hammering time profile is able to compute the load-displacement curve of both replacement and displacement piles with a reasonable accuracy in various geological conditions.

English abstract

The paper presents two applications (software packages) in which the load-transfer method is used for axially loaded Kelly drilled bored piles and displacement ductile iron piles. In the first, the ultimate friction is related to the effective stress via the so-called beta method. The beta method is refined into three stages to cover the variety of soils typical of Central Europe. For the driven piles, a different approach is presented in which the ultimate shaft friction is related to the reference hammering time. The recorded hammering time profile is fed directly into the software based on the load-transfer method. Analyses of five loading tests are presented proving that the load transfer method in combination with the beta method or the recorded hammering time profile is able to compute the load-displacement curve of both replacement and displacement piles with a reasonable accuracy in various geological conditions.

Keywords

Load-transfer method; deep foundations; pile; ultimate shaft friction; base resistance; load-displacement curve; effective stress

Key words in English

Load-transfer method; deep foundations; pile; ultimate shaft friction; base resistance; load-displacement curve; effective stress

Authors

CHALMOVSKÝ, J.; RAČANSKÝ, V.; KOUDELA, P.; ZDRAŽIL, K.

RIV year

2025

Released

08.09.2024

Publisher

CZECH TECHNICAL UNIV PRAGUE

Location

PRAHA 6

ISBN

1805-2363

Periodical

Acta Polytechnica

Volume

64

Number

4

State

Czech Republic

Pages from

341

Pages to

349

Pages count

9

URL

https://ojs.cvut.cz/ojs/index.php/ap/article/view/9255

Full text in the Digital Library

http://hdl.handle.net/11012/250695

BibTex

@article{BUT193692,
  author="Juraj {Chalmovský} and Václav {Račanský} and Pavel {Koudela} and Karel {Zdražil}",
  title="The load-transfer method as a tool for determining the load-displacement curve of piles",
  journal="Acta Polytechnica",
  year="2024",
  volume="64",
  number="4",
  pages="341--349",
  doi="10.14311/AP.2024.64.0341",
  issn="1210-2709",
  url="https://ojs.cvut.cz/ojs/index.php/ap/article/view/9255"
}

Documents

9255-Chalmovsky