In order to study the strength and development rate of the chemical erosion of the stilling pool base slab and analyze the influence of chemical erosion on the strength and durability of the stilling pool base slab, it established a reverse constitutive model of the chemical erosion of concrete of the stilling pool base slab. The model calculation results show that the results of the model calculation and prototype tests are in good agreement. Conclusion: 1) Most easily soluble mineral components in the concrete of the stilling pool base slab are cement hydration products, such as cement (Ca(OH)₂). Compared with the active calcium ion content in the infiltration liquid, the higher the active calcium ion content in the exudate, the stronger the reaction between water seepage and concrete, and the higher the pH value of the exudate; 2) Under given leakage conditions, the greater the amount of material exchange between the stilling pool base slab and the water, the more severe the chemical erosion of the concrete; 3)The intensity of chemical erosion has a good correlation with the degree of damage to the surface of the concrete, that is, when the surface damage is relatively serious, the chemical erosion process is fast, otherwise it is slow.

为了研究静水池底板的化学侵蚀强度和发展速度，并分析化学侵蚀对静水池底板的强度和耐久性的影响，建立了混凝土化学侵蚀的逆本构模型。消音池底座平板。模型计算结果表明，模型计算结果与原型试验吻合良好。结论：1）消音池底板混凝土中最易溶解的矿物成分是水泥水合产物，例如水泥（Ca（OH）₂）。与渗透液中的活性钙离子含量相比，渗出液中的活性钙离子含量越高，渗水与混凝土之间的反应越强，渗出液的pH值越高。2）在给定的泄漏条件下，消音池底板与水之间的物质交换量越大，混凝土的化学侵蚀就越严重；3）化学侵蚀的强度与对混凝土表面的破坏程度有很好的相关性，即当表面破坏相对严重时，化学侵蚀的过程很快，否则缓慢。