内河港口工程建设中，周期性水岩相互作用不断引起承载岩石的劣化损伤，严重影响结构的稳定性和安全，而静力学方法难以实施评价。鉴于此，本项目以重庆港区典型的周期性饱水砂岩作为研究对象，以波动测试和电阻率测试方法作为关键技术手段，研究周期性饱水砂岩的损伤演化。综合采用理论分析、试验分析、信号处理、数值模拟等多种研究方法，针对周期性饱水砂岩的劣化特性、周期性饱水砂岩微观结构变形对波电场特性的影响机制、周期性饱水砂岩的波电场特征参数与应力应变的相关性等关键科学问题开展研究，预期能够阐明周期性饱水砂岩的微观变形机制及宏观力学特性的劣化规律，建立周期性饱水砂岩损伤的波电场特征参数表征方法，构建基于波电场参数耦合的周期性饱水砂岩损伤演化模型，并提出相应的破坏判别准则。项目的研究从理论上为工程岩体的损伤识别及稳定性评价提供了具有创新性和多学科交叉的研究思路，研究成果可为港区工程岩体长期稳定性评价提供科学支撑。

The damage and deterioration of rock was caused constantly with the periodic interaction between water and rock on inland port engineering construction, which can affect the stability and security of the structure, While the statics method has some limitations. So the study focus on the periodic saturated sandstone of Chongqing port area, by the method of Wave test and resistivity test that is a key technology, for researching the damage evolution of periodic saturated sandstone. Using theoretical analysis, laboratory experiments, numerical simulation signal processing and other ways of combining methods to study the science problem, such as deterioration characters of periodic saturated sandstone, the influence mechanism of wave field characteristics on microstructure deformation of periodic saturated sandstone, the correlation between stress and wave field characteristic parameters. The deterioration characters of periodic saturated sandstone will be clarified, the characterization methods of wave field characteristic parameters of damage on periodic saturated sandstone will be established, the damage evolution model will be built based on the parameters of coupled wave-electronic filed, and the failure criteria will be provided. The study provides a research tracks in theory, which has innovative and multi-discipline, for damage identification and stability evaluation of engineering rock mass. The results give some science support for long-term stability evaluation of engineering rockmass in practice.