Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link


Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People
Search
            ×
                        Mining
                        Mining
                            NIOSH
                            All CDC
                    Submit
                For a full list of topics:A-Z Index
                Advanced Search
            Advanced Search


The National Institute for Occupational Safety and Health (NIOSH)





Mining Publication: Investigation of Electromagnetic Emissions in a Deep Underground Mine
Keywords: Ground falls Nonionizing radiation Underground
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: August 2004
Authors: DF Scott, TJ Williams, SJ Knoll
Conference Paper - August 2004
Download PDF Document (0.27 MB)
NIOSHTIC2 Number: 20026118
Proceedings of the 23rd International Conference on Ground Control in Mining, Morgantown, West Virginia, August 3-5, 2004, S.S. Peng, C. Mark, G. Finfinger, S. Tadolini, A.W. Khair, and K. Heasley, eds., Morgantown, WV: West Virginia University, 2004 Aug; :125-132
Highly stressed rock in stopes continues to be a primary safety risk for miners in underground mines because it can result in failures of ground that lead to both injuries and death. Spokane Research Laboratory personnel investigated electromagnetic (EM) emissions in a deep underground mine in an effort to determine if these emissions could be used as indicators of impending catastrophic ground failure. Results suggest that (1) there is no increase in the number of EM emissions prior to recorded seismic activity, (2) some EM signals are generated during blasting, (3) interference from mine electrical sources mask seismic-generated EM signals, (4) EM emissions do not give enough warning (compared to seismic monitoring) to permit miners to leave a stope, (5) the distance an EM signal can travel in the rock is between 18 and 40 m, and (6) current data acquisition systems do not differentiate between EM signals generated from seismic activity and random mine electrical noise. These results preclude monitoring EM emissions as precursors of impending catastrophic ground failure.
Image of publication Investigation of Electromagnetic Emissions in a Deep Underground MineConference Paper - August 2004
Download PDF Document (0.27 MB)
NIOSHTIC2 Number: 20026118
Proceedings of the 23rd International Conference on Ground Control in Mining, Morgantown, West Virginia, August 3-5, 2004, S.S. Peng, C. Mark, G. Finfinger, S. Tadolini, A.W. Khair, and K. Heasley, eds., Morgantown, WV: West Virginia University, 2004 Aug; :125-132
See Also
Damage Delineation in Structures Using Laser Vibrometry and Remote Excitation
Medium-Frequency Propagation in Coal Mines
Methane-Air Mixtures Ignited by CW Laser-Heated Targets on Optical Fiber Tips: Comparison of Targets, Optical Fibers, and Ignition Delays
Methods for Determining Roof Fall Risk in Underground Mines
Modeling and Data Analysis of 50 to 5000 kHz Radio Wave Propagation in Coal Mines
Performance Characteristics for Welded Wire Screen Used for Surface Control in Underground Coal Mines
Reducing Control Selection Errors Associated with Underground Bolting Equipment
Technical Solutions for Enhancements to Mine Safety Using Barricade II Fire Blocking Gel
Through-The-Earth Wireless Real-Time Two-Way Voice Communications
Time-Lapse Tomography of a Longwall Panel: A Comparison of Location Schemes
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
Facebook
        Twitter
        LinkedIn
        Syndicate Mining
        Site BrowserSafety and Health TopicsData & StatisticsMethodologyMine DisastersMSHA Data FilesMine & Mineworker ChartsTools & PublicationsTools You Can UsePublicationsNews & ArticlesResearch ProgramNORA Mining CouncilStrategic PlanMining Program, 2019-2023Miner Health Program, 2020-2030ProjectsContractsFunding OpportunitiesMining LinksAbout UsContact NIOSH MiningEmploymentFacilitiesHistoryVisitor Information NIOSH Homepage
 NIOSH A-Z
Workplace Safety & Health Topics
Publications and Products
Programs


About CDC
					Contact Us
					800-232-4636
 Facebook Twitter Instagram LinkedIn Youtube Pinterest Snapchat
 CONTACT CDC
				Contact Us
							Call 800-232-4636
							Email Us
			ABOUT CDC
				About CDC
							Jobs
							Funding
			POLICIES
				Accessibility
							External Links
							Privacy
							Policies
							No Fear Act
							FOIA
							OIG
							Nondiscrimination
							Vulnerability Disclosure Policy
			CONNECT WITH US
				Facebook
								Twitter
								Instagram
								LinkedIn
							Youtube
								Pinterest
								Snapchat
								Email
			LANGUAGES
				Español
							繁體中文
							Tiếng Việt
							한국어
							Tagalog
							Русский
							العربية
							Kreyòl Ayisyen
							Français
							Polski
							Português
							Italiano
							Deutsch
							日本語
							فارسی
							English


U.S. Department of Health & Human Services
			Accessibility
			External Links
			Privacy
			Policies
			No Fear Act
			FOIA
			Nondiscrimination
			OIG
			Vulnerability Disclosure Policy
			USA.gov


Exit Notification / Disclaimer Policy Close
 Links with this icon  indicate that you are leaving the CDC website. The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
				Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
				You will be subject to the destination website's privacy policy when you follow the link.
				CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. Website Disclaimers
 Cancel Continue