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| State-of-the-art and development tendency of the underground engineering stability of fractured rock mass |
| CHEN Weizhong1,WANG Luyu1,2,TAN Xianjun1,YANG Diansen1,YUAN Jingqiang1,YANG Jianping1 |
| (1. State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China;2. University of Chinese Academy of Sciences,Beijing 100049,China) |
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Abstract The engineering practices both in China and other countries indicate that the discontinuous surfaces existing in natural rock mass have strong effects on the stability conditions of geotechnical structures and even a decisive influence. It is significant to reveal the underlying unsolved problems of seepage behaviors and mechanical mechanisms of jointed rock mass. Based on the review of a lot of research works in the problems of mechanical characteristics for fractured rock,the present work proposed the research focuses and development directions from the viewpoints of theoretical approaches,indoor test,in-situ test and numerical methods,and mainly discussed these topics as follows:field investigation techniques and generation methods of fracture network,stress-flow characteristics of fractured rock mass,macroscale and microscale progressive failure mechanisms of fractured rock mass, and anchoring techniques in underground engineering of fractured rock mass.
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