这个方法的理论基础是：岩石材料的损伤将使得结构的测量信号在损伤部位产生扰动。

The rationale of this method is that damage of rock materials will cause perturbations of measured structural signal at damage sites.

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并以空隙率的变化为基础，建立了化学腐蚀下岩石细观结构化学损伤变量计算公式，给出了损伤测量参数的计算方法。

Based on the variety of void ratio, computational formulation of chemical damage variable is set up, and the calculation method of damage measurement parameter is put forward.

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