Design parameters assessment for ground anchors in tertiery fluvial clays

    Jan Štefaňák Info
    Lumír Miča Info

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 construction process is partially discussed too.

Keywords:

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

How to Cite

Štefaňák, J., & Miča, L. (2014). Design parameters assessment for ground anchors in tertiery fluvial clays. Engineering Structures and Technologies, 6(3), 106-113. https://doi.org/10.3846/2029882X.2014.987948

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December 22, 2014
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2014-12-22

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How to Cite

Štefaňák, J., & Miča, L. (2014). Design parameters assessment for ground anchors in tertiery fluvial clays. Engineering Structures and Technologies, 6(3), 106-113. https://doi.org/10.3846/2029882X.2014.987948

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