Mechanism of Rock Mass Detachment Using Undercutting Anchors: A Numerical Finite Element Method (FEM) Analysis-Reference-Cited by-同舟云学术

Mechanism of Rock Mass Detachment Using Undercutting Anchors: A Numerical Finite Element Method (FEM) Analysis

Published:2024-09-11 Issue:18 Volume:17 Page:4468
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Wójcik Andrzej¹^ORCID,Jonak Kamil²³^ORCID,Karpiński Robert¹^ORCID,Jonak Józef¹^ORCID,Kalita Marek⁴,Prostański Dariusz⁴^ORCID

Affiliation:

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

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

3. Department of Clinical Neuropsychiatry, Medical University of Lublin, 20-059 Lublin, Poland

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

Abstract

Undercutting anchors are structural elements used in construction and geotechnics to stabilize both structures and soils. Their main applications include stabilizing slopes and embankments, reinforcing foundations, and providing support during tunnel construction and other underground works. The authors propose the use of these anchors in rock mass detachment technology. This article presents a comprehensive analysis of the mechanism behind rock mass detachment using an undercutting anchor. Particular attention is given to the influence of parameters such as the fracture energy of the medium and the coefficient of friction between the medium and the anchor head on the detachment process of rock elements during anchor expansion in the drilled hole. Numerical FEM analysis was employed to model the effect of changes in the shape and size of failure cones under varying simulation conditions. The discussed problem is crucial for evaluating the effectiveness of this anchor design under non-standard conditions, particularly in the unconventional destruction of rock media.

Funder

Polish National Center for Research and Development

Publisher

MDPI AG

Link

https://www.mdpi.com/1996-1944/17/18/4468/pdf

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