Study on Rockburst Intensity Prediction Based on Efficacy Coefficient Method

Abstract:

Based on the basic principle of the efficacy coefficient method, a model of rockburst intensity prediction was established. Considering the key affecting factors of rockburst, three factors were selected as evaluation indexes including the ratio of maximum tangential stress and rock uniaxial compressive strength, the ratio of compressive and tensile strength of rock and elastic energy index. Finally, the model was applied to the rockburst prediction of water diversion tunnel of Jiangbian hydropower station and the results show that the method is reliable, and it provids a new idea to predict rockburst.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 1277-1280
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.1277
• Online since: August 2013
• Authors: Dao Hong Qiu*, Shu Cai Li, Le Wen Zhang
• Keywords: Efficacy Coefficient Method, Rock Burst, Tunneling Engineering

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