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滑坡是山区(包括林区)公路常见的病害之一。不仅危及道路路基和桥涵,有时还破坏厂矿,埋没村庄。滑坡在我国主要分布在云贵川藏等西南地区,不仅规模大、类型多,而且发生频繁,危害严重。据调查,在云南省的公路上常有大小不同的滑坡产生;贵州省近二十年来发生的规模较大的滑坡就有13处;四川年年都有滑坡产生,而且绝大多数都发生在雨季。各地滑坡发生的密集程度往往随着各地降雨量及降雨强度的增大而加剧。1981年是
Landslide is one of the most common diseases in mountainous areas (including the forest area). Not only endanger road embankment and bridges and culverts, sometimes destroy factories and mines, buried villages. Landslides in China are mainly distributed in Yunnan, Guizhou and Sichuan and other southwestern regions, not only large-scale, multi-type, and frequent, serious harm. According to the survey, landslides of different sizes often occur on the roads in Yunnan Province. There are 13 large-scale landslides in Guizhou Province in the past two decades. Landslides occur in Sichuan every year, and the vast majority occur in rainy season. The intensity of landslides in various places often aggravates with the increase of rainfall and rainfall intensity everywhere. 1981 is