Properties of Large-scale Geological Features and Seismic Responses Affecting Strainburst Potential in Deep Underground Mines

Audrey Goulet, Martin Grenon, Kyle Woodward, Johan Wesseloo, Philippe Morissette

Research output: Contribution to conferenceConference presentation/ephemera

Abstract

Strainburst refers to local small seismic events generating shallow spalling with violent ejection of fragments in an active development heading. This rockburst category may affect worker safety and mine productivity. This paper conducts a preliminary study investigating properties of large-scale geological features, mine operational context, and both aseismic and seismic responses generating strainbursts. Using the LaRonde mine as a case study, key parameters influencing strainburst occurrence and severity are defined and highlighted. The distance to a lithological contact and the orientation of the drift are parameters that affect strainburst potential and severity at LaRonde. The analysed bursts were seismically triggered or self-initiated. The analysed seismic events generating strainbursts had a local magnitude of-0.7 ± 0.5 on average and were located between 3 and 58 meters from the damage. Finally, strainbursts mostly occur within five days after a development blast.
Original languageEnglish
Number of pages12
Publication statusPublished - Nov 2018
Event10th Asian Rock Mechanics Symposium: The ISRM International Symposium for 2018 - Singapore, Singapore, Singapore
Duration: 29 Oct 20183 Nov 2018

Conference

Conference10th Asian Rock Mechanics Symposium
CountrySingapore
CitySingapore
Period29/10/183/11/18

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geological feature
seismic response
spalling
rockburst
safety
productivity
damage
parameter

Cite this

Goulet, A., Grenon, M., Woodward, K., Wesseloo, J., & Morissette, P. (2018). Properties of Large-scale Geological Features and Seismic Responses Affecting Strainburst Potential in Deep Underground Mines. Paper presented at 10th Asian Rock Mechanics Symposium, Singapore, Singapore.
Goulet, Audrey ; Grenon, Martin ; Woodward, Kyle ; Wesseloo, Johan ; Morissette, Philippe . / Properties of Large-scale Geological Features and Seismic Responses Affecting Strainburst Potential in Deep Underground Mines. Paper presented at 10th Asian Rock Mechanics Symposium, Singapore, Singapore.12 p.
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abstract = "Strainburst refers to local small seismic events generating shallow spalling with violent ejection of fragments in an active development heading. This rockburst category may affect worker safety and mine productivity. This paper conducts a preliminary study investigating properties of large-scale geological features, mine operational context, and both aseismic and seismic responses generating strainbursts. Using the LaRonde mine as a case study, key parameters influencing strainburst occurrence and severity are defined and highlighted. The distance to a lithological contact and the orientation of the drift are parameters that affect strainburst potential and severity at LaRonde. The analysed bursts were seismically triggered or self-initiated. The analysed seismic events generating strainbursts had a local magnitude of-0.7 ± 0.5 on average and were located between 3 and 58 meters from the damage. Finally, strainbursts mostly occur within five days after a development blast.",
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Goulet, A, Grenon, M, Woodward, K, Wesseloo, J & Morissette, P 2018, 'Properties of Large-scale Geological Features and Seismic Responses Affecting Strainburst Potential in Deep Underground Mines' Paper presented at 10th Asian Rock Mechanics Symposium, Singapore, Singapore, 29/10/18 - 3/11/18, .

Properties of Large-scale Geological Features and Seismic Responses Affecting Strainburst Potential in Deep Underground Mines. / Goulet, Audrey ; Grenon, Martin; Woodward, Kyle; Wesseloo, Johan; Morissette, Philippe .

2018. Paper presented at 10th Asian Rock Mechanics Symposium, Singapore, Singapore.

Research output: Contribution to conferenceConference presentation/ephemera

TY - CONF

T1 - Properties of Large-scale Geological Features and Seismic Responses Affecting Strainburst Potential in Deep Underground Mines

AU - Goulet, Audrey

AU - Grenon, Martin

AU - Woodward, Kyle

AU - Wesseloo, Johan

AU - Morissette, Philippe

PY - 2018/11

Y1 - 2018/11

N2 - Strainburst refers to local small seismic events generating shallow spalling with violent ejection of fragments in an active development heading. This rockburst category may affect worker safety and mine productivity. This paper conducts a preliminary study investigating properties of large-scale geological features, mine operational context, and both aseismic and seismic responses generating strainbursts. Using the LaRonde mine as a case study, key parameters influencing strainburst occurrence and severity are defined and highlighted. The distance to a lithological contact and the orientation of the drift are parameters that affect strainburst potential and severity at LaRonde. The analysed bursts were seismically triggered or self-initiated. The analysed seismic events generating strainbursts had a local magnitude of-0.7 ± 0.5 on average and were located between 3 and 58 meters from the damage. Finally, strainbursts mostly occur within five days after a development blast.

AB - Strainburst refers to local small seismic events generating shallow spalling with violent ejection of fragments in an active development heading. This rockburst category may affect worker safety and mine productivity. This paper conducts a preliminary study investigating properties of large-scale geological features, mine operational context, and both aseismic and seismic responses generating strainbursts. Using the LaRonde mine as a case study, key parameters influencing strainburst occurrence and severity are defined and highlighted. The distance to a lithological contact and the orientation of the drift are parameters that affect strainburst potential and severity at LaRonde. The analysed bursts were seismically triggered or self-initiated. The analysed seismic events generating strainbursts had a local magnitude of-0.7 ± 0.5 on average and were located between 3 and 58 meters from the damage. Finally, strainbursts mostly occur within five days after a development blast.

M3 - Conference presentation/ephemera

ER -

Goulet A, Grenon M, Woodward K, Wesseloo J, Morissette P. Properties of Large-scale Geological Features and Seismic Responses Affecting Strainburst Potential in Deep Underground Mines. 2018. Paper presented at 10th Asian Rock Mechanics Symposium, Singapore, Singapore.