Slope risk assessment based on a 3D geo-information model

Landslides cause substantial damage to property,which is seriously hampering social development.With the use of geographic information systems(Arcview),a risk assessment system is established.A 3D geo-information model is drawn into the system.The failure probability of 3D-slope is calculated by using Monte-Carlo method.The risks of life and economic losses are also calculated based on vulnerability analyses.By a case study,the results of the risks of life and economic losses may be crucial foundations for administrant branch based on the 3D geo-information model.