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KOUDELA, P. CHALMOVSKÝ, J. MIČA, L.
Original Title
Utilization of Fusion Deposition Modelling for Reinforcing of Cohesionless Soil
Type
conference paper
Language
English
Original Abstract
Fibre-reinforcing is an efficient method to improve the mechanical properties of a wide range of materials including soils. A drawback of currently used fibres, given by methods of production, is their uniform cross-section, planar shape and a smooth surface in most cases having an adverse effect on the pull-out capacity of fibres. The proposed paper presents an initial experience with the fabrication of fibres and testing of cohesionless soils improved in this way. The commercially available 3D printer was used and different shapes of fibres were prepared. The better interaction between soil and fibres can be achieved by using various shapes of fibres. The first set of fibres shapes was inspired by steel fibres used in the fibre reinforced concrete. The second set of fibres shape was designed by the authors of the article. The choice of the suitable base material was an important task. Furthermore, its durability to use in soil, as well as suitability for the 3D printing, was important. Optimization of the printing process as printing temperature, cooling and other settings had to be done to produce the fibres at the desired quality. Testing of mechanical properties was carried out in the triaxial apparatus as a consolidated drained test. Conducted laboratory tests of mechanical properties revealed a significant increase in shear strength of composite soil and decrease in brittleness. The pulling-out of the fibres was observed as the main failure mechanism of the composite testing in this study.
Keywords
fibre, reinforcement, 3D printing, soil composite
Authors
KOUDELA, P.; CHALMOVSKÝ, J.; MIČA, L.
Released
18. 8. 2020
Publisher
International Multidisciplinary Scientific Geoconference
Location
Albena, Bulgaria
ISBN
978-619-7603-04-0
Book
20th International Multidisciplinary Scientific GeoConference SGEM 2020
1314-2704
Periodical
International multidisciplinary geoconference SGEM
Year of study
20
Number
1.1
State
Republic of Bulgaria
Pages from
771
Pages to
778
Pages count
8
URL
https://www.sgem.org/index.php/elibrary?view=publication&task=show&id=6811
BibTex
@inproceedings{BUT166222, author="Pavel {Koudela} and Juraj {Chalmovský} and Lumír {Miča}", title="Utilization of Fusion Deposition Modelling for Reinforcing of Cohesionless Soil", booktitle="20th International Multidisciplinary Scientific GeoConference SGEM 2020", year="2020", journal="International multidisciplinary geoconference SGEM", volume="20", number="1.1", pages="771--778", publisher="International Multidisciplinary Scientific Geoconference", address="Albena, Bulgaria", doi="10.5593/sgem2020/1.1/s02.094", isbn="978-619-7603-04-0", issn="1314-2704", url="https://www.sgem.org/index.php/elibrary?view=publication&task=show&id=6811" }