본문 바로가기
  • Home

Evaluation of Slope Stability in Umyeon-san Area

  • Crisisonomy
  • Abbr : KRCEM
  • 2012, 8(5), pp.227-234
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general

Jun Byong Hee 1

1강원대학교

Accredited

ABSTRACT

Due to an intensive rainfall about 500 mm occurred between from 25 to 27 July 2011 in Seoul, debris flows were taken placed around the umyeon-san(mountain) and killed 18 people. In this paper, we investigated the adaption possibility of slope stability model for the debris flow triggering. As the input parameters in model, effective cohesion, soil density, the ratio of soil thickness and saturated soil thickness, soil thickness, inclination of the hillslope and soil effective friction angel were applied. We investigated the effect of different slope layer extracted from 1m, 10m, 30m high resolution DEM(Digital Elevation Model) on slope stability analysis. As the results, the high resolution of 10m cell size enhanced the debris flow susceptibility, but 1m resolution did not increased the susceptibility.

Citation status

* References for papers published after 2022 are currently being built.