Load-displacement behavior of a ground anchors in fine grained soils

Load-displacement behavior of a ground anchors in fine grained soils

Článek recenzovaný mimo WoS a Scopus

Ground anchors represent an important structural element in the area of geotechnical engineering. Despite their extensive usage, a design process of these elements is usually performed using simple empirical and semi-empirical methods neglecting several important influencing factors. The factor of non uniform distribution of skin friction resulting in a progressive failure of ground anchors is analysed in the paper. Firstly, the finite element method in combination with a material model involving regularized strain softening is utilized. In the next step, an experimental program including several investigation anchor load tests was carried out. The goal of this program was to confirm preliminary conclusions drawn from numerical studies and to obtain relevant data for further back analysis. A newly developed application based on the load transfer method, in which all the findings from numerical computations and experimental measurements are incorporated, is described afterwards.

Ground anchors represent an important structural element in the area of geotechnical engineering. Despite their extensive usage, a design process of these elements is usually performed using simple empirical and semi-empirical methods neglecting several important influencing factors. The factor of non uniform distribution of skin friction resulting in a progressive failure of ground anchors is analysed in the paper. Firstly, the finite element method in combination with a material model involving regularized strain softening is utilized. In the next step, an experimental program including several investigation anchor load tests was carried out. The goal of this program was to confirm preliminary conclusions drawn from numerical studies and to obtain relevant data for further back analysis. A newly developed application based on the load transfer method, in which all the findings from numerical computations and experimental measurements are incorporated, is described afterwards.

ground anchor, strain softening, investigation load test, load transfer function

ground anchor, strain softening, investigation load test, load transfer function

CHALMOVSKÝ, J.; MIČA, L.

2019

15.07.2018

Czech Technical University in Prague, 2018

Praha

2336-5382

Acta Polytechnica CTU Proceedings

16

1

Česká republika

18

24

7