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1	Comparison of methods: dynamic versus hydrostatic testing of mine ventilation seals
Authors	Sapko-MJ; Harteis-SP; Weiss-ES
Source	Min Eng 2008 Sep; 60(9):147-153
Link	http://me.smenet.org/issuearchive.cfm
NIOSHTIC No.	20034425
Abstract	From 2001 to 2007, the Pittsburgh Research Laboratory (PRL) of the National Institute for Occupational Safety and Health (NIOSH) conducted studies to develop alternative methodologies to full-scale explosion testing for determining the ultimate strength of mine seals. As a result, the PRL developed and proposes an alternative seal-strength evaluation method based on a hydrostatic pressure-loading concept. The researchers suggest pressure loading a seal using water to twice the expected dynamic design load. The hydrostatic chamber test offers a means of validating seal designs, establishing appropriate resistance functions and determining the ultimate strength of seals through testing to failure. This article contrasts the full-scale explosion and hydrostatic testing of mine seals using a simple dynamic system model and principles.
Keywords	Miners; Mining-industry; Explosion-protection; Underground-mining; Accident-prevention; Mine-seals; Mine-shafts; Engineering-controls; Control-technology
CODEN	MIENAB
Publication Date	20080901
Document Type	Journal Article
Fiscal Year	2008
NTIS Accession No.
NTIS Price
Issue of Publication	9
ISSN	0026-5187
NIOSH Division	PRL
Priority Area	Mining
Source Name	Mining Engineering
State	PA

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