engleski

Characteristics of sliding displacement of Kostanjek landslide in Croatia

In Kostanjek, the amount of sliding displacement of the tertiary creep was observed in extensometer that was installed on the slip surface in tunnel of the landslide center area from December 2011. On the other hand, the amount of sliding displacement by extensometer that was placed in a depression zone of the head area delayed about three months, and is also a less than half the amount. It is generally the amount of sliding displacement of the landslide head's exists larger and first appears than the other locations. The amount of displacement analysis was performed by the finite element method for dividing by triangular element network node spacing 40m landslides area to consider the amount of displacement of the landslide central portion is large (Fig 1). Dissipation stress becomes extremely large at the point where a sudden change of terrain that changes from 90m to 8m below in the landslide layer thickness. Also in the point of moving layer thickness is thin, shear resistance is reduced from that vertical load is small. We can report that the amount of landslide displacement increases at this point.

Kostanjek Landslide; displacement; finite element method

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