J4 ›› 2012, Vol. 42 ›› Issue (4): 1104-1111.

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Formation Mechanism of Ermi Landslide

Xu Li-ming1,Wang Qing1, Chen Jian-ping1, Luan Hai2, Zhou Fu-jun1   

  1. 1. College of Construction Engineering|Jilin University|Changchun130026|China;
    2. Jilin Highway Survey and Design Institute, Changchun130021|China
  • Received:2011-09-09 Online:2012-07-26 Published:2012-07-26

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Abstract:

Ermi landslide was a stable ancient slide. The ancient slide start to slide because of the effect of artificial road excavation, precipitation and ground water, which influence regular constructing of the expressway and safety of human life seriously. The topography and rock mass in the area of the landslide are ascertained by the means of field investigation, drilling, geophysical exploration and so on. The location of the slide plane is determined, and the stability of the landslide is calculated. Moreover, the formation mechanism of the landslide is studied. By numerical analysis, It is found that road excavation in the tail of the ancient landslide is main cause of the landslide. It is in the extrusion-primary creep stage. It must be treated by the means of supporting, draining and so on.

Key words: landslides, ancient landslide, formation mechanism, numerical analysis

CLC Number: 

  • P642.22
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