한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2004년도 추계학술대회 논문집
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- Pages.1101-1106
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- 2004
강우로 인한 사면활동의 안정성 평가
Evaluation on the Landslide Stability Triggered by Rainfall
초록
Rainfall induced landslides are disasters causing sever damage on the human life and the infrastructures. In this paper, a simplified procedure to evaluate the slope stability problems induced by rainfall by modifying the Iverson's pressure head dispersion model. The proposed approach extends the applicability of the Iverson's model in to the cases of higher rainfall intensity than the permeability of the soil by incorporating the existence of overland flow. In addition, the Manning equation is applied to calculated the depth of overland flow. From the calculated depth of overland flow, shear stress acting on the surface is included for the driving component triggering the landslides. From the analysis of a case study, the long term rainfall alters the stability of slope.
키워드