The Effects of Mine Fog and Vibration Sources on an Experimental Ground Convergence Monitor
Falls of ground are a leading source of worker injury and fatality indicating a persistent need for advances in ground monitoring technology. The highresolution target movement monitor (HRTMM) is an experimental convergence monitor utilising a digital camera and custom software to track the position of one or more lasers across a target. The potential uses of the HRTMM include convergence monitoring in underground mining or tunnelling applications. For this article, the HRTMM was installed in an underground lead mine near active operations to test its response to three aspects of the mining environment: the ability of the monitor to survive intense blasting vibrations; error from the vibrations of close-proximity heavy equipment; and mine fog error. Improvements to the monitor design are identified from the mine blast test, the measurement error from light fog is determined, and vibrations from nearby equipment are shown to be inconsequential to convergence monitoring activities with the HRTMM.
T. H. Jones et al., "The Effects of Mine Fog and Vibration Sources on an Experimental Ground Convergence Monitor," International Journal of Mining, Reclamation and Environment, Taylor & Francis, Jul 2009.
The definitive version is available at http://dx.doi.org/10.1080/17480930802618661
Electrical and Computer Engineering
Doe Run Peru (Firm)
Keywords and Phrases
Ground Monitoring; Mine Fog; Mining; Convergence; Lasers; Vibration
Article - Journal
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