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Mining Contract: Real-Time Hazard Recognition Using Video Gauge
Keywords: Ground control Ground falls Ground stability Hazard recognition
This page is archived for historical purposes and is no longer being maintained or updated.
Contract #
200-2016-90416Start Date
9/1/2016End Date
8/31/2018Research Concept
In underground mines, it is often difficult to detect the small changes in mine strata that occur as geological conditions and mining operations alter the environment of the mine. When enough changes occur, rock bursts, ground falls, and other sudden events can have devastating consequences. A real-time, continual monitoring system could detect changes as they occur and provide valuable data to operators about an area's potential ground control hazards.Topic Areas
Geologic Characterization
Ground Control Overview
Contract Status & Impact
This contract is complete. To receive a copy of the final report, send a request to mining@cdc.gov.
The objective of this contract is to use existing software technology to evaluate the shifting geologic conditions in a mining environment over a long term in order to identify ground control hazards. Currently, the Video Gauge software is used as a commercial video-monitoring package for materials, component, and structural testing. It has been used mostly for materials testing and structural applications in the transportation industry, and it has also been used in a mining environment for periods of up to a few minutes. The most similar use of Video Gauge to a long-term mining project thus far was the real-time monitoring of a subway tunnel during the boring of an adjacent tunnel. The software employs particular algorithms to track and calculate any changes in a given monitoring field.
This contract will apply the software—which uses pattern-recognition technology to detect minute changes in target positions—to an underground mine environment long term as a ground control hazard-recognition system. In addition to the software, the system includes a camera controller and up to four high-resolution digital cameras. Modifications will be required to prepare the technology for long-term use underground, including ensuring all aspects of the system are intrinsically safe.
Once in place, the software will scan and collect data from the field of view of each camera, and analyze the images of the covered area over time, thereby providing collecting digital information regarding ground stability and ground movement. Doing so will validate a video-based monitoring system for analyzing ground movement in underground mines in real time.
See Also
Calibration and Verification of Longwall Stress Models
Coal Mine Safety Applications of Seismic Monitoring
Developments in Sealant Support Systems for Ground Control
Durable Support for Western U.S. Underground Metal Mines
Ground Control Safety for Deep Vein Mines
Multiple-Seam Mining in the United States: Background
New Technologies for Identifying and Understanding Ground Stability Hazards
Roof Support
Shotcrete Design and Installation Compliance Testing: Early Strength, Load Capacity,Toughness, Adhesion Strength, and Applied Quality
Time-Lapse Tomography of a Longwall Panel: A Comparison of Location Schemes
Page last reviewed: August 1, 2019
Page last updated: February 1, 2018
Content source: National Institute for Occupational Safety and Health, Mining Program
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