摘要
针对古(老)滑坡,选取地貌特征(包括地形坡度、沟谷切割状况、洼地封闭状况、前缘临空状况)、滑面特征(包括滑面倾角、滑面形态、滑面阻抗比)、滑体结构和近期活动迹象4大类9个指标作为潜在滑坡的判识指标,然后依据Fisher判别分析的理论和方法,建立了潜在滑坡的Fisher判识模型。实例分析结果表明,Fisher判别方法预测准确率高达100%,回判估计的误判率仅为5%,是一种有效的潜在滑坡判识方法。
Aiming at ancient （old） landslides, four kinds of discrimination indexes which included nine secondary indexes for potential landslides, such as landform character, slip surface character, landslide body structure and recent activities characters, were presented. Then according to Fisher Discrimination theory, Fisher Discrimination model for the potential landslides was built. The results show that prediction accuracy rate of the method was as high as 100%, and resubstitution error rate was only 5 %, which verified that Fisher Discriminant method is an effective method in identifying potential landslides.
出处
《中国地质灾害与防治学报》
CSCD
2009年第4期23-26,40,共5页
The Chinese Journal of Geological Hazard and Control
基金
国家自然科学基金(40802072)
中科院山地灾害与地表过程重点实验室开放基金(110100L104)
四川省软科学研究计划项目(O9R2140140)
关键词
Fisher判别分析法
潜在滑坡
判识指标
判识模型
Fisher Discrimination analysis method
potential landslide
discrimination indexes
discrimination model
