With ongoing increases in excavation depth, the large-scale toppling instability failure of stratified anti-inclined slopes is gaining wide attention. To address the problem of controlling toppling deformation failure of anti-inclined slopes with traditional small-deformation materials, this paper takes the results of existing studies on the extraordinary mechanical properties of engineering-scale Negative Poisson's ratio (NPR) anchor cable as a theoretical basis, and develops a model-scale NPR anchor cable according to similarity theory. Relying on a self-developed “engineering disaster model experimental system”, a physical modeling-based experiment to explore the reinforcement mechanism of stratified anti-inclined slope using model-scale NPR and ordinary anchor cables is performed. The physical model is monitored using static strain data acquisition equipment, an infrared thermal imager, tension sensors, and digital speckle correlation method (DSCM) displacement field measurement equipment. The evolution of the displacement field, strain field, temperature field, and anchor cable force are obtained during excavation on the physical model. By comparing the evolution of these parameters with images from both the anti-inclined slope model instability failure test and the deformation characteristics on the two sides of the slope, which were reinforced using different types of anchor cables, this paper determines the mechanisms governing instability failure of anti-inclined slopes reinforced with NPR anchor cable. In addition, this paper also proves that NPR anchor cable can be used to monitor the sliding force of anti-inclined slopes throughout excavation, and lays a foundation for the application of NPR anchor cable monitoring technology to the advanced anti-inclined slope failure warning.

随着开挖深度的不断增加，分层反倾斜斜坡的大规模倾覆不稳定性破坏正引起广泛关注。为了解决用传统的小变形材料控制反倾斜斜坡倾倒变形破坏的问题，本文以工程规模的负泊松比（NPR）锚索非凡力学性能的现有研究成果作为理论基础。 ，并根据相似性理论开发了模型规模的NPR锚索。依靠自行开发的“工程灾害模型实验系统”，进行了基于物理建模的实验，探索了使用模型比例NPR和普通锚索加固分层抗倾斜斜坡的机理。使用静态应变数据采集设备，红外热像仪，张力传感器和数字散斑相关方法（DSCM）位移场测量设备来监视物理模型。在物理模型上的开挖过程中，获得了位移场，应变场，温度场和锚索力的变化。通过将这些参数的演变与来自反倾斜边坡模型失稳测试以及使用不同类型的锚索加固的边坡两侧变形特征的图像进行比较，本文确定了控制失稳破坏的机理NPR锚索加固的防倾斜斜坡。此外，