JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2012, Vol. 42 ›› Issue (2): 58-63.

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Application of extensible comprehensive evaluation for rock-burst prediction in a  hydro-tunnel

ZHANG Yong-xi   

  1. China Railway 14 Bureau of Water Conservancy and Hydropower Engineering Group Co Ltd,  Jinan 250014, China
  • Received:2011-09-06 Online:2012-04-20 Published:2011-09-06

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Abstract:

 Rock-burst is a  hazard for highly  buried tunnels and cravens, which always  threatens the safety of workers and the equipment. Both the lithology and the geostress combined with field test were mainly considered to predict the rock-burst level of a  hydro-tunnel. The lithology parameters were determined by rock mechanics and the geostress parameters were determined by measurement using the hollow inclusion method and FEM simulation. The method  proved to be good for guiding the construction by the comparison of prediction and  field results.

Key words: hydro-tunnels, rock-burst, extensible comprehensive evaluation, high geostress

[1] WU Xuan-zheng,LI Ming-chuan,WU Yu-teng . Analysis and prevention measures for rockburst in the auxiliary tunnel of the Jinping Hydropower State [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2008, 38(3): 28-33 .
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