Publication detail

Odvození návrhových parametrů horninových kotev z kontrolních zkoušek

ŠTEFAŇÁK, J. MIČA, L. CHALMOVSKÝ, J. LEITER, A.

Original Title

Odvození návrhových parametrů horninových kotev z kontrolních zkoušek

English Title

Design parameters assessment for ground anchors based on Acceptance tests

Type

conference paper

Language

Czech

Original Abstract

The design of bond length of the postgrouted presstressed anchor is based on presumption of bond shear stress on contact of the bond skin and surrounding soil. Statistical analysis of measured test data was performed, including Latin Hypercube Sampling technique, to specify shear stress parameter for geotechnical conditions of Neogene fluvial clays stiff to very stiff consistency. Information about anchors installed into clays was abstracted from acceptance tests records of anchors used as supports of temporary retaining structures on construction site in Olomouc, Czech Republic. Results of conducted analysis are expressed as confidence interval estimation of mean of bond shear stress parameter. This parameter is usable for future design of anchors installed into analogical geotechnical conditions. Influencing of results by technological aspects of the construction process is partially discussed too.

English abstract

The design of bond length of the postgrouted presstressed anchor is based on presumption of bond shear stress on contact of the bond skin and surrounding soil. Statistical analysis of measured test data was performed, including Latin Hypercube Sampling technique, to specify shear stress parameter for geotechnical conditions of Neogene fluvial clays stiff to very stiff consistency. Information about anchors installed into clays was abstracted from acceptance tests records of anchors used as supports of temporary retaining structures on construction site in Olomouc, Czech Republic. Results of conducted analysis are expressed as confidence interval estimation of mean of bond shear stress parameter. This parameter is usable for future design of anchors installed into analogical geotechnical conditions. Influencing of results by technological aspects of the construction process is partially discussed too.

Keywords

zemní kotva, simulační metody, plášťové tření, kontrolní zkouška

Key words in English

ground anchor, simulation methods, bond shear stress, acceptance test

Authors

ŠTEFAŇÁK, J.; MIČA, L.; CHALMOVSKÝ, J.; LEITER, A.

RIV year

2014

Released

3. 10. 2014

ISBN

978-80-248-3519-8

Book

Geotechnika 2014 - Konštrukcie, technológie a riziká

Pages from

186

Pages to

193

Pages count

8

BibTex

@inproceedings{BUT111124,
  author="Jan {Štefaňák} and Lumír {Miča} and Juraj {Chalmovský} and Augustin {Leiter}",
  title="Odvození návrhových parametrů horninových kotev z kontrolních zkoušek",
  booktitle="Geotechnika 2014 - Konštrukcie, technológie a riziká",
  year="2014",
  pages="186--193",
  isbn="978-80-248-3519-8"
}