Based on analyzing the conditions of landform, strata lithology, geologic structure and
underground water, external and internal causes of No.108 landslide occurring were discussed, and
the effects of two anti-sliding measures were analyzed. The result shows that eluvial-declivous soils
in Quaternary system with a large thickness and low strength is the basic cause of the landslide, the
enrichment of underground water, leading to the decrease in the shear strength of slide surfaces, is
an important condition of its formation, and slope excavation and rail falling are the direct cause of
the landslide. The analysis also indicates that the underground drain tunnel and bored grouting can
control the development of a landslide effectively.