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116089

STABILITY ANALYSIS OF VERTICAL AND INCLINED BACKFILLED STOPE

Article

Last updated: 26 Dec 2024

Subjects

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Tags

Mining and Metallurgical Engineering.

Abstract

Sublevel stoping mining with delayed backfill is a widely employed method in many Canadian underground metal mines (e.g., Bosquet, Doyen, Laronde, and Lapa mines in Quebec and Garson, Creighton, Red lake and David bell mines in Ontario). In this method, the extracted stope(s) must be tightly backfilled before advancing to extract the adjacent secondary stope(s). Thus, backfill is necessary to provide good-confinement to the host rock mass. Therefore, its objective is to maintain the stability of mined out stope(s). Otherwise, the failure of backfill column into adjacent stope(s) leads to higher operation cost (e.g., cost of ore milling/ore processing operation, costs associated with ore dilution when waste/backfill material mixed with unmined block(s)). Consequently, backfill instability could lead to an overall unsafe/interrupt mining operation. This article presents the results of numerical modelling analysis to evaluate the performance stability of vertical and inclined backfilled stope adopting stress state distribution. Two-dimensional finite element model is built to conduct linear elastic analysis employing RS2D program (e.g., formerly known as phase2D). The results are presented and discussed in terms of vertical stress and absolute total displacement.

DOI

10.21608/jesaun.2017.116089

Keywords

Backfill performance evaluation, Stress state into backfilled stope, Numerical modelling, sublevel stoping mining system

Authors

First Name

Wael

Last Name

R. Abdellah

MiddleName

-

Affiliation

Mining & Metallurgical Eng. Depart, Faculty of Engineering- Assiut University, Assiut, Egypt

Email

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City

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Orcid

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First Name

Mahrous

Last Name

A. Ali

MiddleName

-

Affiliation

Mining &Petroleum Eng. Depart, Faculty of Engineering- Al-Azhar University, Qena, Egypt

Email

-

City

-

Orcid

-

Volume

45

Article Issue

No 1

Related Issue

16631

Issue Date

2017-01-01

Receive Date

2016-09-06

Publish Date

2017-01-01

Page Start

70

Page End

79

Print ISSN

1687-0530

Online ISSN

2356-8550

Link

https://jesaun.journals.ekb.eg/article_116089.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=116089

Order

6

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

STABILITY ANALYSIS OF VERTICAL AND INCLINED BACKFILLED STOPE

Details

Type

Article

Created At

23 Jan 2023