Landslides often develop in pebbly clay slopes as toe cutting or surface loading.

坡脚开挖或坡面堆载时，含碎石粘性土边坡经常发生滑坡。

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Pipe drainage of groundwater are often developed in the pebbly clay slopes and are important in restricting groundwater level rising and in keeping slope stability.

含碎块石土质边坡中常发育有地下水排泄管道，他们控制地下水水位上升，对保持边坡稳定十分重要。

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