应力松弛是岩土材料常见的流变特性之一,应力松弛对于岩体特别是地下结构支护的长期稳定性具有重要的影响。将应力松弛单独作为研究对象,通过规则齿型结构面在剪切应力条件下的应力松弛试验,研究结构面的力学特征和主要规律,通过对试验数据的分析了解应力松弛规律,并对试验数据进行拟合,利用Burgers体模型来反映规则齿型结构面的应力松弛特性。 Stress relaxation is one of the common rheological properties of geomaterials. Stress relaxation plays an important role in the long-term stability of rock mass, especially subsurface structures. The stress relaxation is taken as the research object separately. Through the stress relaxation test of regular tooth profile surface under the condition of shear stress, the mechanical characteristics and main rules of the structure surface are studied. The stress relaxation rules are obtained by analyzing the test data, and the experimental data Fitting, the Burgers body model is used to reflect the stress relaxation behavior of the regular tooth profile surface.