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: Evaluation of New Methods and Facilities to Test Explosion-Resistant Seals
Keywords: Explosions Methane Seals
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: January 2001
Authors: MJ Sapko, ES Weiss
Conference Paper - January 2001
Download PDF Document (0.12 MB)
NIOSHTIC2 Number: 20021430
Proceedings of the 29th International Conference of Safety in Mines Research Institutes, Vol. 1, Katowice, Poland: Central Mining Institute, 2001 Jan; :157-166
The Pittsburgh Research Laboratory (PRL) of the National Institute for Occupational Safety and Health (NIOSH) has conducted full-scale explosion experiments to evaluate the strength characteristics of several seal designs for isolating worked out areas in underground coal mines. The PRL is currently pursuing the development of improved seal evaluation methods and facilities based on pneumatic and hydrostatic testing that would lend themselves to in-situ seal testing in an operating mine. Two chambers were constructed and instrumented within PRL’s Lake Lynn Experimental Mine (LLEM) for the evaluation of seals. Two solid-concrete-block seals, 13.5 and 40.3 square meter cross-section and 406 mm thick with a central pilaster, were constructed in both the small and large chambers and tested to failure with a series of methane explosions producing loading pressures ranging from 386 to 688 kPa.
A preliminary size-scaling relationship is presented for estimating the ultimate strength of masonry block seals built with rib and floor hitching. Testing seal designs in the chambers shows promise as an alterative evaluation method to that of full-scale explosion testing within the LLEM.
Image of publication Evaluation of New Methods and Facilities to Test Explosion-Resistant SealsConference Paper - January 2001
Download PDF Document (0.12 MB)
NIOSHTIC2 Number: 20021430
Proceedings of the 29th International Conference of Safety in Mines Research Institutes, Vol. 1, Katowice, Poland: Central Mining Institute, 2001 Jan; :157-166
See Also
Compendium of Structural Testing Data for 20-psi Coal Mine Seals
Composition Change Model for Sealed Atmosphere in Coal Mines
Designs for Rapid in Situ Sealing
Experimental Mine and Laboratory Dust Explosion Research at NIOSH
Explosion Pressure Design Criteria for New Seals in U.S. Coal Mines
Explosion Prevention in United States Coal Mines
Historical Development of Technologies for Controlling Methane in Underground Coal Mines
Methane-Air Detonation Experiments at NIOSH Lake Lynn Laboratory
Progress Toward Improved Engineering of Seals and Sealed Areas of Coal Mines
Use of Ground Penetrating Radar and Schmidt Hammer Tests to Determine the Structural Integrity of a Mine Seal
Page last reviewed: November 19, 2015
Page last updated: November 19, 2015
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