Investigation of the efficiency of SINMAP and SHALSTAB Physically-based Models for landslide hazard zonation (Case Study: Chahar Donge region, Mazandaran Province)

Motevali, Alireza; Talebi, Ali; Safaei, Mehrdad; Ekhtesasi, Mohammadreza

doi:10.22059/jrwm.2017.61977

Document Type : Research Paper

Authors

Dept. of Rangeland and Watershed Management, Faculty of Natural Resources and Desert Studies, Yazd University

https://doi.org/10.22059/jrwm.2017.61977

Abstract

Landslide is one of the most important geological phenomena in northern slopes of Iran (Alborz) which causes considerable damages gradually. In the last few years, due to unfavorable changes in land uses and increasing degradation of pastures, forests and farmlands as well as implementation of inappropriate development projects in areas prone to landslides, geology formation prone to landsliding, rainfall rate and steep slopes, the occurance of this destructive phenomenon has constantly increased. In this research, landslides which occurred around Sari-Kiasar road were investigated using physically based models i.e. SINMAP and SHALSTAB and the stability map of the region was determined applying these models. First, the physical and mechanical properties of soils in 13 points were measured and evaluated by 56 landslide points. The results of field studies, laboratory samples, running models and data analysis showed that these models (SINMAP and SHALSTAB) have success rate equal to 87.3 % and 69.5%, respectively for predicting the slope instability in ChaharDonge region. This means that the SINMAP model has more efficiency than SHALSTAB model for slope stability analysis.

Keywords

References

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Journal of Range and Watershed Managment

Investigation of the efficiency of SINMAP and SHALSTAB Physically-based Models for landslide hazard zonation (Case Study: Chahar Donge region, Mazandaran Province)

References

References

Volume 70, Issue 1
June 2017
Pages 207-218

Investigation of the efficiency of SINMAP and SHALSTAB Physically-based Models for landslide hazard zonation (Case Study: Chahar Donge region, Mazandaran Province)

References

References

Volume 70, Issue 1June 2017Pages 207-218

Volume 70, Issue 1
June 2017
Pages 207-218