Carla Fabris (Author), Helmut Schweiger (Author), Boštjan Pulko (Author), Helmut Woschitz (Author), Václav Račanský (Author)

Abstract

This paper presents a comprehensive study of the load transfer mechanism of a soil anchor during pullout test. The anchor was monitored with fiber optic sensors installed along the tendon and embedded in the grout, which enabled continuous measurements of strains with a spatial resolution of about 10 mm. The measured strain profile along the tendon indicates that the load is not transferred from the tendon to the grout at the same rate along the fixed length. Crack development was verified by measured peaks along the longitudinal strain profile. The in situ measurements were compared with results from finite-element simulations contributing to the interpretation of the in situ results. The load displacement curves and strain distributions obtained with the numerical simulations compare well with measurements. The constitutive model selected for the grout is capable of reproducing the crack development and the numerical simulations suggest that debonding occurred during the anchor pullout test.

Keywords

gradbeništvo;geotehnika;numerične analize;geotehnična sidra;izvlečni preiskus;meritve z optičnimi vlakni;civil engineering;numerical simulations;geotechnical engineering;ground anchors;pullout test;optical fiber sensors;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
UDC: 624.1
COBISS: 40033795 Link will open in a new window
ISSN: 1090-0241
Views: 326
Downloads: 86
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: gradbeništvo;geotehnika;numerične analize;geotehnična sidra;izvlečni preiskus;meritve z optičnimi vlakni;
Type (COBISS): Scientific work
Pages: str. 1-10
Volume: ǂVol. ǂ147
Issue: ǂiss. ǂ2/
Chronology: Feb. 2021
DOI: 10.1061/(ASCE)GT.1943-5606.0002442
ID: 12612156