3060 Application of an Empirical Method and Numerical Modelling to Merensky Reef Crush Pillar Stability
DOI:
https://doi.org/10.17159/2411-9717/3060/2025Resumo
The empirical pillar strength formulae has been widely (and in most cases successfully) applied to design underground pillars for mines in the Bushveld Igneous Complex (BIC). This paper presents the case for combining the empirical method and numerical modelling when it comes to crush pillar stability analyses. These benefits include understanding of potential failure mechanisms, which may then be accounted for in the designs. In addition, the impact of weak layers (such as shear zones), the impact of the dip of the orebody, differences in layouts (such as holing widths and the presence of ASGs immediately adjacent to the crush pillars) and stress regime (k-ratio) may be studied using numerical modelling, as it is not accounted for in the empirical method.
Publicado
Edição
Seção
Licença
Copyright (c) 2024 Kevin Byron Le Bron
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
THE INSTITUTE, AS A BODY, IS NOT RESPONSIBLE FOR THE STATEMENTS AND OPINIONS ADVANCED IN ANY OF ITS PUBLICATIONS.
Copyright© 1978 by The Southern African Institute of Mining and Metallurgy. All rights reserved. Multiple copying of the contents of this publication or parts thereof without permission is in breach of copyright, but permission is hereby given for the copying of titles and abstracts of papers and names of authors. Permission to copy illustrations and short extracts from the text of individual contributions is usually given upon written application to the Institute, provided that the source (and where appropriate, the copyright) is acknowledged. Apart from any fair dealing for the purposes of review or criticism under The Copyright Act no. 98, 1978, Section 12, of the Republic of South Africa, a single copy of an article may be supplied by a library for the purposes of research or private study. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without the prior permission of the publishers. Multiple copying of the contents of the publication without permission is always illegal.
U.S. Copyright Law applicable to users In the U.S.A.
The appearance of the statement of copyright at the bottom of the first page of an article appearing in this journal indicates that the copyright holder consents to the making of copies of the article for personal or internal use. This consent is given on condition that the copier pays the stated fee for each copy of a paper beyond that permitted by Section 107 or 108 of the U.S. Copyright Law. The fee is to be paid through the Copyright Clearance Center, Inc., Operations Center, P.O. Box 765, Schenectady, New York 12301, U.S.A. This consent does not extend to other kinds of copying, such as copying for general distribution, for advertising or promotional purposes, for creating new collective works, or for resale.
