›› 2009, Vol. 30 ›› Issue (S1): 140-143.

• Geotechnical Engineering • Previous Articles     Next Articles

Parameter optimization of bolting for coalmine roadways

DAI Jun, GUO Xiang-can   

  1. Xi’an University of Science and Technology, Xi’an 710054, China
  • Received:2009-05-11 Online:2009-08-10 Published:2011-03-16

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Abstract:

Currently, the shortage exists in the design of bolting for coalmine roadways yet, which results in the poor performance of rock bolt, waste of bolting material and high cost. Basing on the interaction principle of surrounding rock and rock bolt, the superiority of bolting can be performed wholly if the parameter design of bolting is determined by in-situ measurement. In the paper, the optimal parameters of bolting are determined with the method by which the bolting parameters are calculated theoretically and revised based on the measurement value of bolt force, according to the roadway condition of a coalmine in Shaanxi province. The application shows that the optimal bolting parameters can be obtained quickly by the suggestion in the paper. In this case, the bolts will perform wholly support capacity and the optimization of bolting realized. The finding is significant in practice and valuable in mining engineering.

Key words: coalmine, roadway, bolting, parameter, optimization

CLC Number: 

  • T452
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