While research into landslide disasters is relatively extensive and in-depth, the false alarm rate is still high. Previous research has indicated similar mechanical problems between the seismic faults and the sliding interface of landslides. Here, we introduce asperity theory from seismology to improve the prediction level of landslide damage. We designed a soil landslide model sized at 2.0 m × 0.6 m × 1.5 m where the upper layer is loess and the lower layer is mudstone. Four pore water pressure sensors and four soil pressure sensors are equally spaced at the loess-mudstone interface. The monitoring results show that the sliding interface has the characteristics of asperity, while the landslide failure is a nonlinear movement process. Although it is difficult to directly measure asperities, we can infer their position at the sliding interface by measuring the velocity or displacement of the landslide surface. We install monitoring sensors at the surface region corresponding to the asperity. Once there is a large deformation in the region, there is a significant probability that the entire landslide will be destroyed. Thus, asperity theory was applied for an early warning system of landslide disasters, which will greatly improve the monitoring and prediction of future landslides.

中文翻译：

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跨学科粗糙理论分析弱滑动界面黄土滑坡非线性运动

虽然对滑坡灾害的研究相对广泛和深入，但误报率仍然很高。先前的研究表明地震断层和滑坡滑动界面之间存在类似的力学问题。在这里，我们从地震学中引入粗糙理论，以提高滑坡损害的预测水平。我们设计了一个大小为 2.0 m × 0.6 m × 1.5 m 的土壤滑坡模型，其中上层为黄土，下层为泥岩。四个孔隙水压力传感器和四个土壤压力传感器在黄土-泥岩界面等距分布。监测结果表明，滑动界面具有凹凸不平的特征，而滑坡破坏是一个非线性运动过程。虽然很难直接测量粗糙度，我们可以通过测量滑坡表面的速度或位移来推断它们在滑动界面上的位置。我们在对应于凹凸不平的表面区域安装了监测传感器。一旦该地区发生大变形，整个滑坡被破坏的可能性很大。因此，将粗糙度理论应用于滑坡灾害预警系统，将大大提高对未来滑坡的监测和预测。