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Modern Mining ›› 2013, Vol. 29 ›› Issue (08): 23-25+29.

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The Classification Techniques of the stability of surrounding rock of roadway based on RMR and BQ Method

Qi Liandong1,2,Ye Jun1,Jiang Zhongan1   

  1. 1.School of Civil and Environmental Engineering,University of Science and Technology Beijing;2.Xishimen Iron Mine of Minmetals Hanxing Ming Co.,Ltd.
  • Online:2013-08-15 Published:2013-10-14

Abstract: Combining with the filed exploration data of the Xishimen iron mine and the experimental data of rock mechanics,the roadway engineering properties and other factors are con siderated comprehensively.Engineering quality classification and evaluation of roadway surrounding rock of three mining area in the south,middle and north mining area are carried out by means of RMR and BQ method respectively.Surrounding rock stability of various cola roadway is determined effectively.Therefor,this research result can provide some reliable scientific basis for taking mor economic and safe measure in this field.

Key words: RMR method, BQ method, Stability of the surrounding rock