针对盐岩作为储库介质在长期运营下的变形行为，开展了历时359 d的层状盐岩室内单轴蠕变试验，实时监测了试验过程中的声发射信号规律。研究表明，盐岩单轴蠕变试验中声发射表现出特征明显不同的3个阶段，累计声发射事件定位显示，各阶段声发射信号的分布与试件的变形及破坏位置基本一致，并且累计声发射事件数与蠕变应变近似满足线性关系，验证了基于声发射事件数来建立盐岩蠕变本构模型的合理性。进一步构建了基于声发射的盐岩损伤演化本构模型，并采用最小二乘法拟合本试验数据获得本构模型中的参数，由拟合曲线可知，基于声发射的盐岩蠕变本构模型能够较好地描述盐岩蠕变的3个特征阶段。

This study aims at investigating the deformation behavior of rock salt as reservoir medium under long-term operation. Uniaxial creep experiments were conducted on rock salt specimens for 359 days, and the law of real-time acoustic emission (AE) signal was also monitored during the test. The results show that three stages of AE were identified in the uniaxial creep experiment. The cumulative AE event location indicates that the distribution of AE signals at each stage corresponds to the positions of deformation and failure of the specimen. Meanwhile, the relationship between accumulative AE event and the creep strain was approximately linear, which proves that the number of AE events can be used to establish the creep constitutive model of rock salt. Hence, a constitutive model of rock salt damage evolution was developed based on AE data. In addition, parameters in the constitutive model were determined by fitting experimental data with the least squares method. Fitting curves show that the proposed creep constitutive model can well describe three creep characteristic stages of rock salt .