Publication detail

Design parameters assessment for ground anchors in tertiery fluvial clays

ŠTEFAŇÁK, J. MIČA, L.

Original Title

Design parameters assessment for ground anchors in tertiery fluvial clays

English Title

Design parameters assessment for ground anchors in tertiery fluvial clays

Type

journal article - other

Language

Czech

Original Abstract

The design of the bond length of an 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 provided by TOPGEO Czech special foundations contractor. All tested anchors were 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 con -struction process is partially discussed too.

English abstract

The design of the bond length of an 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 provided by TOPGEO Czech special foundations contractor. All tested anchors were 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 con -struction process is partially discussed too.

Keywords

ground anchors, design of anchoring, bond shear stress, statistical methods, Latine Hypercube Sampling, Lognormal distribution.

Key words in English

ground anchors, design of anchoring, bond shear stress, statistical methods, Latine Hypercube Sampling, Lognormal distribution.

Authors

ŠTEFAŇÁK, J.; MIČA, L.

RIV year

2014

Released

31. 12. 2014

ISBN

2029-882X

Periodical

Engineering Structures and Technologies

Year of study

3

Number

6

State

Republic of Lithuania

Pages from

106

Pages to

113

Pages count

8

BibTex

@article{BUT111125,
  author="Jan {Štefaňák} and Lumír {Miča}",
  title="Design parameters assessment for ground anchors in tertiery fluvial clays",
  journal="Engineering Structures and Technologies",
  year="2014",
  volume="3",
  number="6",
  pages="106--113",
  issn="2029-882X"
}