Natural researches of behaviour of the rock mass around primary extraction cameras

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Authors: O.Ye. Khomenko, M.M. Kononenko

 
It is stated the technique of natural researches of behaviour of a rock mass around extraction cameras and the drilling mine workings, adjoining to them. Character of deformation of the massif around the extraction chambers is investigated when working of ore reserves on two working levels. Basic areas of the massif deformation which are located in the massif of hanging wall rocks and in the ore massif at the inclined bottom of the cameras are established. The results of the industrial measurements of the ore massif deformations around the drilling mine workings are displayed. The size of the destroying deformations in the drilling orts of 665 m horizon from lying wall rocks changes depending on the distance to the primary cameras on square-law dependence. For the drilling orts of 690 m and 715 m horizons the size of the destroying deformations from hanging wall rocks changes depending on the distance to the primary chambers on cubic dependence. Also empirical dependences of deformation size change on the extraction cameras depth location are established. Empirical dependences of the destroying deformations size in the drilling mine workings roof on the distance to cameras are received.
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2010_09-10 Khom
Date 2012-12-14 Filesize 350.07 KB Download 826

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ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

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