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《Journal of Geological Hazards and Environment Preservation》 2008-03
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WANG Fei1,DU Jian-po2,LI Xiu-fen1 (1.Engineering institute Of Shijiazhuang Economics University,Hebei Shijiazhuang 050031,China;2.Hebei Xingtai Road&bridge construct general company,Xingtai 054001,China)  
There is essential difference between the mechanical condition of unloading engineering rock mass and loading engineering rock mass.Currently the research of rock unloading strength characteristic sees more and much,but unloading strength characteristic of jointed rock mass,especially the influence of structural plane to unloading strength is in really seldom seen.this paper studied the destroy characteristics of unloading rock mass,the influence of structural plane properties to unloading strength based on model test are considered emphatically.Finally this paper proposed the strength criterion of unloading rock mass and proved through comparing.
【CateGory Index】: TU452
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