降雨边坡试验研究进展及关键问题

 滑坡的产生与降雨有着密切联系，雨水入渗不仅可以改变边坡土体的水分分布，而且可以导致土体强度大大降低，从而可能成为触发边坡失稳破坏的主要因素。针对降雨入渗作用下的边坡稳定性，基于对近年来国内外降雨边坡试验研究成果的梳理总结，分析了降雨条件下滑坡的成因机制，着重分析了降雨入渗作用下的室内边坡模型试验和现场边坡试验的研究思路、试验方法及试验技术，探讨了目前室内降雨边坡模型试验与现场降雨边坡试验的优点及其不足之处，以及进一步发展需要解决的关键问题。

Research progress and key problems of rainfall slope experiment

The occurrence of landslide is closely related to rainfall, which can not only change the water distribution of slope soil but also reduce the strength of soil, and may become the main factor to trigger the failure of slope. Aimed at slope stability analysis under rainfall infiltration, the mechanism of the landslide is analyzed based on the indoor slope rainfall model tests and the slope field rainfall tests, with focuses on rainfall condition, research ideas, test methods and test techniques of indoor slope model tests and slope field tests. The advantages and disadvantages of current indoor slope rainfall model tests and slope field rainfall tests are discussed, the key problems of the indoor slope rainfall model tests and slope field tests are addressed, and the future developments of the indoor slope rainfall model tests and slope field tests are prospected.