Seismic monitoring in mines ‚Äì Design, operation, tricks and traps

Hudyma, Marty; Brummer, Richard

doi:10.1201/noe0415444019-c176

Cited by 3 publications

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“…Individual longwall coal panels in the United States are larger than the footprint of many hardrock mines in which seismic monitoring takes place. Hudyma and Brummer [2007] tabulated basic seismic monitoring network characteristics from 24 different hardrock mines. Although it is difficult to make a straightforward comparison between a planar coal mine and a more three-dimensional hardrock ore body, the report shows that the cross-sectional footprint of the area that was monitored in the surveyed hardrock mines was significantly smaller than the typical longwall coal mine.…”

Section: Rapid Excavation Of Large Longwall Panelsmentioning

confidence: 99%

“…South African hardrock mines targeting deep tabular deposits are much larger than the typical mines surveyed inHudyma and Brummer [2007], but rates of excavation are still at least an order of magnitude slower than U.S. longwall coal mines. Multiple monitoring systems are also implemented within individual mines[Durrheim 2010] to maintain a smaller fixed footprint.…”

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Seismic monitoring strategies for deep longwall coal mines.

Swanson¹,

Boltz²,

Chambers³

2016

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This document is in the public domain and may be freely copied or reprinted. Disclaimer Mention of any company or product does not constitute endorsement by the National Institute for Occupational Safety and Health (NIOSH). In addition, citations to Web sites external to NIOSH do not constitute NIOSH endorsement of the sponsoring organizations or their programs or products. Furthermore, NIOSH is not responsible for the content of these Web sites. All Web addresses referenced in this document were accessible as of the publication date.

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Section: Rapid Excavation Of Large Longwall Panelsmentioning

confidence: 99%

mentioning

confidence: 94%

Seismic monitoring strategies for deep longwall coal mines.

Swanson¹,

Boltz²,

Chambers³

2016

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Shape memory alloys: Properties, demands and opportunities in engineering applications: PART I

Volkov-Husovic,

Dimitrijevic,

Alil

2024

Hem Ind

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Shape memory alloys (SMAs) are a subclass of shape memory materials (SMMs), which are materials that, in response to a specific impact like thermal, mechanical, or magnetic changes, can "memorize" or hold into their prior form. This review addresses the properties, demands, and application prospects of SMAs, and provides a synopsis of recent advancements, as well as a historical background. Due to their special and exceptional qualities, SMAs have attracted a lot of interest and attention recently in a wide range of commercial applications; basic and applied research investigations have supported this commercial development. In order to shed light on design, issues faced by SMA developers, this paper explains the characteristics of these materials that make them perfectly suited for variety of applications, addressing also the accompanying constraints. This paper offers a pertinent overview of current SMA research.

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Application of MEMS-Based Accelerometers for Near-Field Monitoring of Blasting-Induced Seismicity

et al. 2022

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Proper monitoring of seismic risk and reliable evaluation of destress blasting efficiency requires a well-developed seismic network surrounding the analyzed area. Unfortunately, the construction of a dense seismic monitoring system using standard types of seismometers and accelerometers is associated with high costs of seismic network development and maintenance. Significant improvements in this regard may be potentially achieved by replacing expensive monitoring devices with other cost-effective sensors such as MEMS-based accelerometers. Nevertheless, this topic has not been sufficiently investigated yet, and the usefulness of such devices for monitoring seismicity in deep underground mines has not been recognized. The goal of this paper was to perform preliminary measurements of blasting-induced seismicity in the near-wave field with the use of a single three-axial MEMS-based accelerometer and three uniaxial seismometers. The collected seismic records induced by multi-face blasting were compared in time and frequency domains. In the time domain, the values of 3D peak motion plots were analyzed, and the possibility of identification of subsequent delay times in recorded waveforms was investigated. In the case of frequency distribution, the Power Spectrum Density plots were calculated and compared. The results of the analysis proved that MEMS-based accelerometers provide reliable results and may be successfully implemented for regular use in underground seismic monitoring systems.

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Seismic monitoring in mines ‚Äì Design, operation, tricks and traps

Cited by 3 publications

References 0 publications

Seismic monitoring strategies for deep longwall coal mines.

Seismic monitoring strategies for deep longwall coal mines.

Shape memory alloys: Properties, demands and opportunities in engineering applications: PART I

Application of MEMS-Based Accelerometers for Near-Field Monitoring of Blasting-Induced Seismicity

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