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Control of dust in hard-rock tunnels.
Handbook for dust control in mining. Kissell FN, ed. Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2003-147 (IC 9465), 2003 Jun; :97-107
In this chapter: finding the dust source; ventilation and dust collector malfunctions; upgrading the dust controls; design stage ventilation planning. This chapter explains how to reduce respirable dust in hard-rock tunnels during excavation by using tunnel boring machines (TBMs). The first steps in combating a dust problem are to take dust samples to pinpoint the source, check the ventilation system, and check the dust collector. If the ventilation system and dust collector are operating properly, then other dust controls such as water sprays and conveyor belt scrapers must be upgraded. For tunnels in the design stage, recommended air quantities are provided.
Dust-control; Dust-control-equipment; Underground-mining; Airborne-dusts; Ventilation; Sprays; Dust-collection; Dust-collectors; Control-technology; Engineering-controls
Research Tools and Approaches: Exposure Assessment Methods
Handbook for dust control in mining
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division