Research on the rock burst prediction of Heishiling highway tunnel
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Abstract
Rockburst problem has been a technical problem puzzled the large-scale tunnel construction. This thesis takes the Heishiling tunnel in Zhangjiakou-Shijiazhuang expressway as the engineering background, simulated the secondary stress distribution around the tunnel rock using finite element software of Geotechnical and Tunnel analysis System, which seledted typical calculation section according with the actual excavation methods, analyzed the rockburst scope and intensity based on the theoretical of Tao Zhenyu criterion. The results have a guiding role in tunnel safety construction.
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