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根据理论分析，推导出各向同性损伤岩体的特征比功，得到其损伤表达式．从能量角度出发，提出了测定损伤的新方法──特征比功法．
According to the theoretical analysis, the characteristic specific work of the isotropic damage rock mass is deduced and its damage expression is obtained. From the energy point of view, a new method for measuring damage is proposed--feature ratio work method.