【摘要】 风险分析是降低边坡灾害损失的有效途径。以地理信息系统(Arcview GIS)为二次开发平台,建立边坡风险评估系统。该系统通过建立边坡的三维地质信息模型,根据模型的物理力学参数等属性数据,运用Monte-Carlo法求出三维边坡的失效概率,在易损性分析的基础上,计算边坡失稳的经济风险和生命风险。实例分析表明,基于三维地质信息模型的边坡风险分析可为相关风险决策提供科学依据。更多还原

【Abstract】 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.更多还原