Monitoring problems
Subtitle: are we really measuring coal mine subsidence
By: Robert A. Baver and Dan J. Van Roosendaal.
Contributors: Van Roosendaal, Dan J.; Illinois Mining Institute.
Publisher: s.n
Published: 1992
Place of publication: S.l
Language: eng
Number of pages: 52
Description:   A study was done in order to report differences between natural ground movements and mine subsidence and to develop ways of detecting these differences.  Some common natural ground movements were described.  The common techniques used to measure mine subsidence, namely movements and benchmarks, were explained and disadvantages of theses methods were given.  The subject of limit values or error bands when studying this process was discussed.  It was concluded that great care is required to get accurate measurements during surveying for subsidence research.
Notes: In : Proceedings of the Illinois Mining Institute (1992), p. 39-52.

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