›› 2011, Vol. 32 ›› Issue (4): 1181-1185.

• Geotechnical Engineering • Previous Articles     Next Articles

Evaluation of underground cavern rock quality based on uncertainty measure theory

TANG Hai，WAN Wen，LIU Jin-hai   

  1. Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China
  • Received:2008-04-30 Online:2011-04-10 Published:2011-04-29

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Abstract:

Uncertainty measure theory and dependent function are combined rationally and then applied to evaluating underground cavern rock quality. According to influence factors and grading standards of underground cavern rock quality, uncertainty measure functions of evaluation indices are obtained using the uncertainty measure theory. Dependent function is used to calculate weights of the evaluation indices of underground cavern rock quality. Credible degree recognition criteria are used to evaluate underground cavern rock quality. Finally, the comparative analysis is made with examples. The results show that the uncertainty measure method is reasonable and reliable; and it is a new method for evaluating underground cavern rock quality.

Key words: rock quality evaluation, uncertainty measure, underground cavern, dependent function, weight

CLC Number: 

  • TU 457
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