The comparison of two adopted face perpendicular preconditioning techniques

F. Sengani; T. Zvarivadza; A. C. Adoko

doi:10.1080/25726668.2018.1517204

The comparison of two adopted face perpendicular preconditioning techniques

F. Sengani
, T. Zvarivadza
, A. C. Adoko

Nazarbayev University

University of Venda
University of the Witwatersrand

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced by deep gold mines. This paper investigates the effectiveness of face-perpendicular preconditioning that was developed for development ends in mechanized gold mines. The investigation comprised a comparison of four face and five face-perpendicular preconditioning holes in a deep gold mine. The results of the study indicated that five face-perpendicular preconditioning is more effective than four face-perpendicular preconditioning holes. The results were validated by adequate fracturing on the mining face, improvement of fracturing in the vicinity of the sockets and rapid decrease in the hangingwall fracturing. Ground Penetrating Radar, borehole periscope, seismic monitoring systems and numerical modelling were used to validate the effectiveness of the methods.

Original language	English
Pages (from-to)	21-38
Number of pages	18
Journal	Mining Technology: Transactions of the Institute of Mining and Metallurgy
Volume	128
Issue number	1
DOIs	https://doi.org/10.1080/25726668.2018.1517204
Publication status	Accepted/In press - Jan 1 2018

Funding

This paper forms part of the first author’s MSc research project sponsored and supported by South Deep goldfields mine in South Africa. The authors would like to thank the authority of the mine for granting permission to publish the findings of the study. Also, the contributions of Dr. Charles Lily from BECK Engineering (Australia) and the Institute of Mine Seismology (South Africa) are highly appreciated.

Keywords

borehole periscope
deep-level gold mining
ground closure
ground penetration radar
numerical modelling
Preconditioning
rockburst
seismicity

ASJC Scopus subject areas

Geology
Geotechnical Engineering and Engineering Geology

Access to Document

10.1080/25726668.2018.1517204

Cite this

@article{56610e796ccb444392c49783c070c355,

title = "The comparison of two adopted face perpendicular preconditioning techniques",

abstract = "Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced by deep gold mines. This paper investigates the effectiveness of face-perpendicular preconditioning that was developed for development ends in mechanized gold mines. The investigation comprised a comparison of four face and five face-perpendicular preconditioning holes in a deep gold mine. The results of the study indicated that five face-perpendicular preconditioning is more effective than four face-perpendicular preconditioning holes. The results were validated by adequate fracturing on the mining face, improvement of fracturing in the vicinity of the sockets and rapid decrease in the hangingwall fracturing. Ground Penetrating Radar, borehole periscope, seismic monitoring systems and numerical modelling were used to validate the effectiveness of the methods.",

keywords = "borehole periscope, deep-level gold mining, ground closure, ground penetration radar, numerical modelling, Preconditioning, rockburst, seismicity",

author = "F. Sengani and T. Zvarivadza and Adoko, \{A. C.\}",

note = "Funding Information: This paper forms part of the first author{\textquoteright}s MSc research project sponsored and supported by South Deep goldfields mine in South Africa. The authors would like to thank the authority of the mine for granting permission to publish the findings of the study. Also, the contributions of Dr. Charles Lily from BECK Engineering (Australia) and the Institute of Mine Seismology (South Africa) are highly appreciated. Publisher Copyright: {\textcopyright} 2018, {\textcopyright} 2018 Institute of Materials, Minerals and Mining and The AusIMM Published by Taylor \& Francis on behalf of the Institute and The AusIMM.",

year = "2018",

month = jan,

day = "1",

doi = "10.1080/25726668.2018.1517204",

language = "English",

volume = "128",

pages = "21--38",

journal = "Mining Technology: Transactions of the Institute of Mining and Metallurgy",

issn = "2572-6668",

publisher = "SAGE Publications Ltd",

number = "1",

}

TY - JOUR

T1 - The comparison of two adopted face perpendicular preconditioning techniques

AU - Sengani, F.

AU - Zvarivadza, T.

AU - Adoko, A. C.

N1 - Funding Information: This paper forms part of the first author’s MSc research project sponsored and supported by South Deep goldfields mine in South Africa. The authors would like to thank the authority of the mine for granting permission to publish the findings of the study. Also, the contributions of Dr. Charles Lily from BECK Engineering (Australia) and the Institute of Mine Seismology (South Africa) are highly appreciated. Publisher Copyright: © 2018, © 2018 Institute of Materials, Minerals and Mining and The AusIMM Published by Taylor & Francis on behalf of the Institute and The AusIMM.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced by deep gold mines. This paper investigates the effectiveness of face-perpendicular preconditioning that was developed for development ends in mechanized gold mines. The investigation comprised a comparison of four face and five face-perpendicular preconditioning holes in a deep gold mine. The results of the study indicated that five face-perpendicular preconditioning is more effective than four face-perpendicular preconditioning holes. The results were validated by adequate fracturing on the mining face, improvement of fracturing in the vicinity of the sockets and rapid decrease in the hangingwall fracturing. Ground Penetrating Radar, borehole periscope, seismic monitoring systems and numerical modelling were used to validate the effectiveness of the methods.

AB - Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced by deep gold mines. This paper investigates the effectiveness of face-perpendicular preconditioning that was developed for development ends in mechanized gold mines. The investigation comprised a comparison of four face and five face-perpendicular preconditioning holes in a deep gold mine. The results of the study indicated that five face-perpendicular preconditioning is more effective than four face-perpendicular preconditioning holes. The results were validated by adequate fracturing on the mining face, improvement of fracturing in the vicinity of the sockets and rapid decrease in the hangingwall fracturing. Ground Penetrating Radar, borehole periscope, seismic monitoring systems and numerical modelling were used to validate the effectiveness of the methods.

KW - borehole periscope

KW - deep-level gold mining

KW - ground closure

KW - ground penetration radar

KW - numerical modelling

KW - Preconditioning

KW - rockburst

KW - seismicity

UR - https://www.scopus.com/pages/publications/85053262502

UR - https://www.scopus.com/pages/publications/85053262502#tab=citedBy

U2 - 10.1080/25726668.2018.1517204

DO - 10.1080/25726668.2018.1517204

M3 - Article

AN - SCOPUS:85053262502

SN - 2572-6668

VL - 128

SP - 21

EP - 38

JO - Mining Technology: Transactions of the Institute of Mining and Metallurgy

JF - Mining Technology: Transactions of the Institute of Mining and Metallurgy

IS - 1

ER -

The comparison of two adopted face perpendicular preconditioning techniques

Abstract

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this