A Numerical Study of the Influence of Cone Angle of the Breakout Anchor Head on the Crack Trajectory of the Medium

• Autorzy: Karpiński Robert , Jonak Józef , Wójcik Andrzej , Jonak Kamil , Prostański Dariusz , Kaczyński Roman

Identyfikatory

DOI

10.12913/22998624/190133

• Języki publikacji: EN

Abstrakty

EN

Anchors of various designs are crucial, especially in mining and underground construction, where they stabilise the excavation and prevent the movement of rocks. They make it possible to control the direction of cracking during explosions, limit the dispersion of rock material and minimise damage from vibrations. The use of anchors increases the safety and efficiency of work in difficult geological conditions. The authors propose the use of modified anchor construction for the detachment of rock lumps. The paper presents the results of a numerical analysis carried out using the finite element method (FEM) on the effect of the angle of the anchor conical head of a new breakout design on the formation of the detachment crack trajectory influencing the range and, consequently, the volume of detached rock output. The analysis was carried out with a view to explaining the mechanism of separation of lumps of rock by the anchor treated as a mining tool.

Słowa kluczowe

EN

FEM analysis; mining extracting tool; rock cone failure; undercut/breakout anchor; breakout rock mass

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2024
• Tom: Vol. 18, no 5
• Strony: 101--112
• Opis fizyczny: Bibliogr. 68 poz., fig., tab.

Twórcy

autor

Karpiński Robert

• Lublin University of Technology, ul. Nadbystrzycka 38d, 20-618 Lublin, Poland

• https://orcid.org/0000-0003-4063-8503

autor

Jonak Józef

• Department of Machine Design and Mechatronics, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland

autor

Wójcik Andrzej

• Department of Machine Design and Mechatronics, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland

autor

Jonak Kamil

• Department of Technical Informatics, Lublin University of Technology, 20-618 Lublin, Poland

autor

Prostański Dariusz

• KOMAG Institute of Mining Technology, Pszczyńska 37, 44-100 Gliwice, Poland

autor

Kaczyński Roman

• Faculty of Mechanical Engineering, Bialystok University of Technology, ul. Wiejska 45C, 15-351 Bialystok, Poland

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).