Occurrence of toppling failure has been prominent due to the increasing of infrastructure construction, such as road slopes, dams, and hydroelectric stations. Many scholars have done research on the toppling failure characteristics, but paid less attention to the comparison of numerical simulations and physical models in order to propose reasonable and effective stability control methods. Based on previous tests on physical model and field investigations, a numerical model of an anaclinal slope using the three-dimension distinct element code (3DEC) software has been built to simulate the failure process of the physical model. Based on the prominent mechanical properties of the engineering-scale and model-scale negative Poisson’s ratio (NPR) cables, a numerical simulation model of the NPR cable has been developed. The numerical model has been used to simulate the effects of different types of model-scale cables on controlling the deformation of the anaclinal slope. The numerical results show that standard cables, i.e., Poisson’s ratio (PR) cables, cannot control the large deformations of the slope, and the slope finally fails. On the opposite, NPR cables can absorb the deformation energy and maintain the stable constant resistance force during the tensile process. This thereby allows avoiding tensile breakage of cables under the effect of large deformations of the slope and driving the slope towards a new equilibrium state. Through the comparison between the numerical simulation results and the physical model test results, the accuracy and rationality of the numerical simulations have been proven. The numerical model developed in this study can be used for future research works on the failure mechanism of anaclinal slopes and the control effect of NPR cables. It thereby lays a foundation for applying the NPR cables to control the toppling deformations of similar anaclinal slopes.

由于基础设施建设（例如道路坡，水坝和水力发电站）的增加，导致倾覆破坏的发生变得很突出。许多学者已经对倾覆破坏特性进行了研究，但很少关注数值模拟和物理模型的比较，从而提出了合理有效的稳定性控制方法。在先前对物理模型和现场调查进行的测试的基础上，已使用三维离散元代码（3DEC）软件建立了倾斜角的数值模型，以模拟物理模型的破坏过程。基于工程规模和模型规模的负泊松比（NPR）电缆的突出机械性能，开发了NPR电缆的数值模拟模型。数值模型已被用来模拟不同类型的模型尺度电缆对控制倾斜角变形的影响。数值结果表明，标准电缆，即泊松比（PR）电缆，无法控制斜坡的大变形，最终导致斜坡失效。相反，NPR电缆可以吸收变形能量并在拉伸过程中保持稳定的恒定阻力。因此，这可以避免在斜率的大变形的作用下电缆的拉伸断裂，并将斜率驱动到新的平衡状态。通过数值模拟结果与物理模型试验结果的比较，证明了数值模拟的准确性和合理性。本研究开发的数值模型可用于今后的研究中，对角膜倾斜的破坏机理和NPR电缆的控制效果进行研究。从而为应用NPR电缆控制相似的倾斜角的倾斜奠定了基础。