Inspired by two practical cases in Switzerland, the paper investigates a problem of elevated earth pressures downslope of existing landslides. This problem is relevant for both permanent landslides and one-time events, and of particular practical interest is the area of the stable slope just below the landslide high-pressure compression zone. Intuitively, there should be a transition zone, within which high landslide pressures subside to the far field (at rest) earth pressures in the stable slope. How large is this transition zone and how fast do the earth pressures decrease away from the slide? The paper proposes a basic mechanism of the downhill pressure transfer within the stable part of the slope below a landslide. The mechanism combines the failure at the bottom of the unstable part of the slope with progressive growth of the slip surface into the stable part, accounting for the groundwater flow and potential presence of embedded structures. It allows the determination of the dimensions of the ‘landslide influence zone’ below the landslide and the lateral earth pressures within it, providing some insights for design considerations and future hazard mapping.

中文翻译：

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滑坡影响区——一个隐患

受瑞士两个实际案例的启发，本文研究了现有滑坡下坡土压力升高的问题。这个问题与永久性滑坡和一次性事件都有关，尤其是滑坡高压压缩带下方的稳定斜坡区域具有特别的实际意义。直观上，应该有一个过渡带，在该过渡带内，高滑坡压力消退到稳定边坡中的远场（静止）土压力。这个过渡区有多大，土压力在远离滑坡的地方下降的速度有多快？本文提出了滑坡下方斜坡稳定部分内下坡压力传递的基本机制。该机制将斜坡不稳定部分底部的破坏与滑面逐渐增长到稳定部分相结合，考虑到地下水流和潜在的嵌入结构的存在。它允许确定滑坡下方“滑坡影响区”的尺寸和其中的侧向土压力，为设计考虑和未来的灾害测绘提供一些见解。