studies on the evolution process of rockbursts in deep tunnels外文参考.pdf

Journal of Rock Mechanics and Geotechnical Engineering. 2012, 4 (4): 289–295


Studies on the evolution process of rockbursts in deep tunnels

Xiating Feng*, Bingrui Chen, Shaojun Li, Chuanqing Zhang, Yaxun Xiao, Guangliang Feng, Hui Zhou, Shili Qiu,
Zhouneng Zhao, Yang Yu, Dongfang Chen, Huajun Ming

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071,
China
Received 10 September 2012; received in revised form 6 November 2012; accepted 21 November 2012


Abstract: This paper focuses on the evolution processes of different types of rockbursts occurring in deep tunnels. A series of
laboratory tests and in-situ monitoring in deep tunnels excavated by tunnel boring machine (TBM) and drill-and-blast (D&B)
method have been conducted to understand the mechanisms and processes of the evolution of different types of rockbursts,
including strain rockburst, strain-structure slip rockburst, immediate rockburst and time-delayed rockburst. Three different risk
assessment methods are proposed to evaluate the intensity and potential failure depth of rockbursts. These methods can be
applied before excavation and the results can be updated