›› 2012, Vol. 33 ›› Issue (S2): 145-149.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Theoretic analysis of specific power of broken hard rock by impact action and its fuzzy prediction model

CAO Jun, SHEN Zhi-kang, HU Yong-le, FAN Cheng-zhou, WANG Ding-xian, DENG Li-rong, YANG Huan   

  1. Northwest Institute of Nuclear Technology, Xi’an 710024, China
  • Received:2012-07-14 Online:2012-11-22 Published:2012-12-11

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Abstract: Based on theoretical analysis of specific power of broken hard rock, a mode of specific power of broken hard rock has been established. Tools structural dimensions and rock mechanical performance and broken technique three types parameters, which are interrelated with specific power of broken rock, have been determined. Fuzzy logic method (FLM) has been introduced to predict the specific power of broken rock. Taking the above three types parameters for input variables of FLM and the specific power of broken rock for output variables of FLM, a fuzzy prediction model of the specific power of broken rock has been established. The model is applied to a project instance. The comparison of the project practice real value and the model value shows that the model values are close to the project practice real values. It is indicates that the model is reasonable and fuzzy if-then rules can express the experience of the project practice. Given input variables, the model can predict effectively specific power of broken rock.

Key words: specific power of broken rock, mechanism theory of broken hard rock, fuzzy prediction model

CLC Number: 

  • TU 452
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