Temporal Delineation and Quantification of Short Term Clustered Mining Seismicity

Woodward, Kyle; Wesseloo, Johan; Potvin, Yves

doi:10.1007/s00024-017-1570-6

Cited by 9 publications

(3 citation statements)

References 44 publications

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“…Figure 9 shows the results of a systematic back-analysis of three real-time re-entry assessment methods by Tierney and Morkel (2017). The Vallejos and McKinnon method was back-analysed using the approach described by Morkel and Rossi-Rivera (2017) and a database of short-term seismic responses modelled temporally with the MOL (Woodward & Wesseloo 2015;Woodward et al 2017Woodward et al , 2018. The two other real-time re-entry assessment methods used the event count and total energy within a moving time window.…”

Section: Exposure Managementmentioning

confidence: 99%

Seismic exclusions and re-entry from a risk perspective

Tierney

Woodward

Wesseloo

2019

Proceedings of the First International Conference on Mining Geomechanical Risk

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Exposure to seismic hazard in mines is controlled through various evacuation, exclusion and re-entry procedures. The aim of exposure management procedures is to tactically reduce the safety risk by removing personnel from work areas during periods of elevated seismic hazard. Given that risk assessment is based on exposure, the design of exposure management procedures must also be risk-based. In practice, the decision to re-enter a workplace after an exclusion is generally only made based on an assessment of the seismic hazard, often using previously defined levels of tolerable seismic activity rates. The definition of tolerable seismic hazard, in the context of re-entry, is seldom quantitatively assessed based on risk. In order to move towards a comprehensive seismic risk management strategy, design methodologies must be able to quantify the impact of different exclusion and re-entry practices on risk. The appropriate re-entry practice can then be selected given the defined risk-based design acceptance criteria. There is still a long way to go before the risk-based design framework for exposure management procedures is complete. This paper reviews the current state of design of exposure management controls in the context of risk and discusses several important areas for further research.

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Section: Exposure Managementmentioning

confidence: 99%

Seismic exclusions and re-entry from a risk perspective

Tierney

Woodward

Wesseloo

2019

Proceedings of the First International Conference on Mining Geomechanical Risk

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“…In this case, rock pressure in the underground workings of the operating mines disrupts the continuity of the rock mass including its near-contour part which manifests itself in the dynamic forms as peelingoff and shooting of rocks, dynamic culling, microimpacts and rock bursts and manmade earthquakes (Kozyrev et al, 2016). Just as the tectonic (natural) seismicity, mining-induced earthquakes can trigger repeated shocks (aftershocks) (Plenkers et al, 2010;Woodward and Wesseloo, 2015;Kozyrev et al, 2018;Baranov et al, 2019a;. After a mining-induced earthquake, a decision should be rapidly made as to suspending the work, evacuating the people, and removing the equipment from the danger zone.…”

Section: Introductionmentioning

confidence: 99%

Spatial Distribution of Triggered Earthquakes in the Conditions of Mining-Induced Seismicity

Baranov

Motorin²,

Shebalin

2021

Izv., Phys. Solid Earth

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Abstract—The spatial distribution of the triggered seismic events in mining conditions in the tectonically loaded rock masses is studied using the example of seismicity in the Khibiny Mountains. It is shown that the distribution of distances from the triggering to triggered events, on average, obeys the power-law with a parameter independent of the magnitude of the triggering event. The model of the maximum distances from a triggering event’s hypocenter to the triggered shocks expected with a given probability is derived. It is shown that the model is consistent with the real data. Based on the error diagram analysis, the guidelines are proposed for the practical use of the model.

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“…Für die Verwendung von 1 als Grundbausteinsynthetischer Corrine war dieseF ixierung zentrale Voraussetzung, und insoweit unterliegen die in unserem Laboratorium zum Aufbau des Corrin-Chromophors entwickelten Methoden konstitutionell einer entsprechendenE inschränkung 35 ).…”

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