Modelling cave mining in the geotechnical centrifuge

S.W. Jacobsz; E. Kearsley; Daniel Cumming-Potvin; Johan Wesseloo

doi:10.1201/9780429438646-6

Modelling cave mining in the geotechnical centrifuge

S.W. Jacobsz, E. Kearsley, Daniel Cumming-Potvin, Johan Wesseloo

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

Abstract

A model study was undertaken using centrifuge modelling to investigate the mechanism of cave propagation occurring in cave mines. Cave mining involves controlled undercutting of ore bodies in deep mines, allowing the rock mass to fracture under in situ stress. The paper describes a weak artificial rock mass that was developed and presents results from tests in which caving was observed under conditions of high and low horizontal stress. Comments on appropriate scaling relations is presented. It was found that rock fracture occurred by means of extensional fracture banding, which differs from the Duplancic conceptual model, commonly accepted to describe processes associated with cave advancement.

Original language	English
Title of host publication	Physical Modelling in Geotechnics, Volume 2
Subtitle of host publication	Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom
Editors	Andrew McNamara, Sam Divall, Richard Goodey, Neil Taylor, Sarah Stallebrass, Jignasha Panchal
Publisher	CRC Press
Pages	809-814
Number of pages	6
ISBN (Electronic)	9780429797620
DOIs	https://doi.org/10.1201/9780429438646-6
Publication status	Published - 2018
Event	9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018 - London, United Kingdom Duration: 17 Jul 2018 → 20 Jul 2018 Conference number: 9

Conference

Conference	9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018
Abbreviated title	ICPMG 2018
Country/Territory	United Kingdom
City	London
Period	17/07/18 → 20/07/18

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10.1201/9780429438646-6

Cite this

Jacobsz, S. W., Kearsley, E., Cumming-Potvin, D., & Wesseloo, J. (2018). Modelling cave mining in the geotechnical centrifuge. In A. McNamara, S. Divall, R. Goodey, N. Taylor, S. Stallebrass, & J. Panchal (Eds.), Physical Modelling in Geotechnics, Volume 2: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom (pp. 809-814). CRC Press. https://doi.org/10.1201/9780429438646-6

Jacobsz, S.W. ; Kearsley, E. ; Cumming-Potvin, Daniel et al. / Modelling cave mining in the geotechnical centrifuge. Physical Modelling in Geotechnics, Volume 2: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom. editor / Andrew McNamara ; Sam Divall ; Richard Goodey ; Neil Taylor ; Sarah Stallebrass ; Jignasha Panchal. CRC Press, 2018. pp. 809-814

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title = "Modelling cave mining in the geotechnical centrifuge",

abstract = "A model study was undertaken using centrifuge modelling to investigate the mechanism of cave propagation occurring in cave mines. Cave mining involves controlled undercutting of ore bodies in deep mines, allowing the rock mass to fracture under in situ stress. The paper describes a weak artificial rock mass that was developed and presents results from tests in which caving was observed under conditions of high and low horizontal stress. Comments on appropriate scaling relations is presented. It was found that rock fracture occurred by means of extensional fracture banding, which differs from the Duplancic conceptual model, commonly accepted to describe processes associated with cave advancement.",

author = "S.W. Jacobsz and E. Kearsley and Daniel Cumming-Potvin and Johan Wesseloo",

year = "2018",

doi = "10.1201/9780429438646-6",

language = "English",

pages = "809--814",

editor = "Andrew McNamara and Sam Divall and Richard Goodey and Neil Taylor and Sarah Stallebrass and Jignasha Panchal",

booktitle = "Physical Modelling in Geotechnics, Volume 2",

publisher = "CRC Press",

note = "9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018, ICPMG 2018 ; Conference date: 17-07-2018 Through 20-07-2018",

}

Jacobsz, SW, Kearsley, E, Cumming-Potvin, D & Wesseloo, J 2018, Modelling cave mining in the geotechnical centrifuge. in A McNamara, S Divall, R Goodey, N Taylor, S Stallebrass & J Panchal (eds), Physical Modelling in Geotechnics, Volume 2: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom. CRC Press, pp. 809-814, 9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018, London, United Kingdom, 17/07/18. https://doi.org/10.1201/9780429438646-6

Modelling cave mining in the geotechnical centrifuge. / Jacobsz, S.W.; Kearsley, E.; Cumming-Potvin, Daniel et al.
Physical Modelling in Geotechnics, Volume 2: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom. ed. / Andrew McNamara; Sam Divall; Richard Goodey; Neil Taylor; Sarah Stallebrass; Jignasha Panchal. CRC Press, 2018. p. 809-814.

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

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AB - A model study was undertaken using centrifuge modelling to investigate the mechanism of cave propagation occurring in cave mines. Cave mining involves controlled undercutting of ore bodies in deep mines, allowing the rock mass to fracture under in situ stress. The paper describes a weak artificial rock mass that was developed and presents results from tests in which caving was observed under conditions of high and low horizontal stress. Comments on appropriate scaling relations is presented. It was found that rock fracture occurred by means of extensional fracture banding, which differs from the Duplancic conceptual model, commonly accepted to describe processes associated with cave advancement.

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Jacobsz SW, Kearsley E, Cumming-Potvin D , Wesseloo J. Modelling cave mining in the geotechnical centrifuge. In McNamara A, Divall S, Goodey R, Taylor N, Stallebrass S, Panchal J, editors, Physical Modelling in Geotechnics, Volume 2: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics (ICPMG 2018), July 17-20, 2018, London, United Kingdom. CRC Press. 2018. p. 809-814 doi: 10.1201/9780429438646-6

Modelling cave mining in the geotechnical centrifuge

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