Strength and deformation characteristics of high-accurate 3D printed physical models of honeycomb mine structures

The change in the stress–strain behavior of the modeled honeycomb mine structures is governed by the strength and elastic characteristics of equivalent materials as well as by the accuracy in manufacturing of the model elements. Application of new additive technologies in manufacturing of precise physical models using 3D printing and strong plastics as equivalent materials ensured purity of experiments and elimination of errors in selection of the material strength characteristics. The physical modeling data obtained using the advanced technologies made it possible to optimize stable parameters of design mine structures, to define subsequent modeling stages and to reduce the time of the labor-intensive experimentation. The experience gained in the advanced modeling and 3D printing allows manufacturing high-accurate physical models of frame and honeycomb mine structures and enables adjustment of the earlier testing data obtained in physical modeling using equivalent materials if necessary. The experimental research shows the promising nature of 3D modeling and FDM 3D printing accurate to 0.2 mm in geomechanical analysis in development of new mining technologies and their parameters.

Keywords: Honeycomb mine structures, physical modeling, stress–strain behavior, FDM printing, PLA, crate system of data acquisition.
For citation:

Leizer V. I., Yanbekov A. M., Umarov A. R., Vishnyakova K. M. Strength and deformation characteristics of high-accurate 3D printed physical models of honeycomb mine structures. MIAB. Mining Inf. Anal. Bull. 2021;(11):28-36. [In Russ]. DOI: 10.25018/0236_ 1493_2021_11_0_28.

Acknowledgements:

The study was supported by the Russian Science Foundation, Project No. 19-17-00034.

Issue number: 11
Year: 2021
Page number: 28-36
ISBN: 0236-1493
UDK: 622.831; 622,2; 622.235
DOI: 10.25018/0236_1493_2021_11_0_28
Article receipt date: 06.09.2021
Date of review receipt: 10.09.2021
Date of the editorial board′s decision on the article′s publishing: 10.10.2021
About authors:

V.I. Leizer1, Graduate Student, e-mail: vlad.leizer@yandex.ru,
A.M. Yanbekov1, Graduate Student, e-mail: yanbekov@mail.ru,
A.R. Umarov1, Graduate Student, e-mail: flek1231998@mail.ru,
K.M. Vishnyakova1, Student, e-mail: karina-vishnyakova00@yandex.ru,
1 Mining Institute, National University of Science and Technology «MISiS», 119049, Moscow, Russia.

 

For contacts:

V.I. Leizer, e-mail: vlad.leizer@yandex.ru.

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