基于粗糙集和模糊模型识别的斜坡危险性区划  

Slope hazard zoning based on rough set and fuzzy pattern recognition

作　　者：柴波[1] 殷坤龙[2] 杜娟[2] 

机构地区：[1]中国地质大学环境学院,武汉430074 [2]中国地质大学工程学院,武汉430074

出　　处：《岩土力学》2010年第10期3203-3208,共6页Rock and Soil Mechanics

基　　金：国家自然科学基金项目(No40872176);中国地质大学(武汉)优秀青年教师资助计划资助项目(NoCUGQNL0915)

摘　　要：为了在斜坡危险性区划中考虑岩体结构的控制作用,将粗糙集和模糊模型识别理论用于区域斜坡岩体结构识别,并结合信息量法对斜坡单元进行空间危险性预测。尝试在指标中考虑深部岩体结构特征和岩层变形构造(断层、岩层曲率),将该方法应用于巴东新城区库岸斜坡危险性区划。结果表明:巴东新城区滑坡的主要影响因素有坡向和岩层倾向关系、坡角和岩层倾角关系、构造条件,可将斜坡分为3种结构类型。不同结构类型斜坡在危险性评价时各指标的影响程度或权重不同,可将巴东新城区划分为4个危险性等级,与现有滑坡比较验证了结果的合理性。In order to consider rock mass structures in slope hazard zoning,rough set theory and fuzzy pattern recognition was used to classify the slope units with different slope structures;and then,the slope units＇ hazard was predicted by information value model.Above method was used to analyze slope hazard zoning of the New Badong county in Three Gorges reservoir area.It indicates that the main influencing factors of landslides include the relationship between slope aspect and strata tendency,the relationship between slope angle and strata inclination,tectonic condition.The slope units could be divides into three kinds that have different weight indices when predict the slope hazard zoning.The shoreline slope of the New Badong county is divided into four hazard ranks.The result of slope hazard is reasonable compared with landslides in New Badong county.

关 键 词：危险性区划 粗糙集 模糊模式识别 岩体结构 滑坡 

分 类 号：TU457[建筑科学—岩土工程]