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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 66 (1982)

Issue: 8. (August)

First Page: 1176

Last Page: 1176

Title: Application of Remote Sensing to Underground Coal Mining: Observations and Experience: ABSTRACT

Author(s): Ronald F. Valane, John J. Jansky

Article Type: Meeting abstract

Abstract:

Remote sensing in the form of linear analysis has been used for a number of years for the prediction of roof stability in underground coal mines. The advantages and limitations of this predictive method determined from the 6-year working experience of the Roof Control Division of the Mine Safety and Health Administration will be presented. The effectiveness of this method can be quite variable on both a regional and local scale. Factors contributing to this variation, such as mining practices and mine geology, will be discussed.

While the precise nature of the influence of a linear is not always known, a number of observations and experiences provide for a better understanding of the effects of these features. In addition to roof falls and poor roof conditions, more subtle characteristics of some linears have been observed: (1) time-dependent behavior with roof stability deteriorating with time; (2) roof stability which was good during development becoming poor upon retreat mining; and (3) water closely associated with some linears causing mining and roof control problems.

The predictive technique of linear analysis will not delineate all areas where poor roof conditions will be encountered, nor will roof instability be experienced along all linears plotted using this method. To be effective this technique must be integrated with existing engineering and geologic knowledge and practices.

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Copyright 1997 American Association of Petroleum Geologists