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Comprehensive Prediction of Rockburst in High-Speed Railway Tunnel
Dayanwan tunnel in Shanghai-Kunming high-speed railway is deeply buried and its rock lithology is brittle and hard. The typical tunnel cross section was selected to do hydraulic fracturing field geostress test. The stress in the measured depth was obtained. In order to forecast the rock burst in the whole tunnel, the finite element inversion method has been used based on field geostress test. Lastly, the stress conditions, lithology, structure characteristics and groundwater conditions of surrounding rock were made as the general conditions to predict the rock burst comprehensively in Dayanwan tunnel. The results show this comprehensive prediction method is more accurate than the single rock burst prediction method used before. And it has a certain guiding significance in practice.
Comprehensive Prediction of Rockburst in High-Speed Railway Tunnel
Dayanwan tunnel in Shanghai-Kunming high-speed railway is deeply buried and its rock lithology is brittle and hard. The typical tunnel cross section was selected to do hydraulic fracturing field geostress test. The stress in the measured depth was obtained. In order to forecast the rock burst in the whole tunnel, the finite element inversion method has been used based on field geostress test. Lastly, the stress conditions, lithology, structure characteristics and groundwater conditions of surrounding rock were made as the general conditions to predict the rock burst comprehensively in Dayanwan tunnel. The results show this comprehensive prediction method is more accurate than the single rock burst prediction method used before. And it has a certain guiding significance in practice.
Comprehensive Prediction of Rockburst in High-Speed Railway Tunnel
Applied Mechanics and Materials ; 477-478 ; 553-557
2013-12-19
5 pages
Article (Journal)
Electronic Resource
English
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