Determination of Strength Parameters for Specimens Prepared by 3D Printed Discontinuity Planes

Mining activities in sustainable and safely operated underground mines depend on the design ofopenings using rock strength-related parameters representing site conditions as much as possible. Rockspecimens must be collected and prepared for experiments to obtain intact rock properties. Inparticular, it is almost impossible to represent field conditions in experimental environmentscompletely. A well-known example of this challenge is the representation of discontinuities on site. Atthis point, using current technologies could improve the level of representation of specimens where 3Dprinters could be used to manufacture existing discontinuity planes that reduce the strength of intactrock material. In this context, a 3D printed discontinuity plane is used to prepare concrete mortarspecimens. Static deformability experiments of these samples were completed to determine thestrength parameters. As a result, the uniaxial compressive strength value of concrete samples withoutdiscontinuity planes was obtained in addition to the samples with rough, wavy, and smoothdiscontinuity planes. Finally, the results were compared with stress concentration factors obtained fromthe numerical models.
27th International Mining Congress and Exhibition (IMCET 2022)


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Citation Formats
A. Kırmacı, M. Erkayaoğlu, and A. G. Yardımcı, “Determination of Strength Parameters for Specimens Prepared by 3D Printed Discontinuity Planes,” presented at the 27th International Mining Congress and Exhibition (IMCET 2022), Antalya, Türkiye, 2022, Accessed: 00, 2022. [Online]. Available: