摘要
目的 用模糊信息优化方法中的信息扩散原理建立黄土湿陷评价方法。方法 收集黄土高原地区 68组黄土湿陷性的土工试验资料,选取含水量、孔隙比和压缩系数等重要影响因素,采用模糊信息优化处理中的信息扩散原理及一、二级模糊近似推论,建立了各评价指标与湿陷系数之间的模糊关系。结果 形成一套用信息扩散原理建立的黄土湿陷性评价方法,对 10组黄土湿陷资料进行了非母体验证,效果良好。结论 该方法简单、快速、实用,能使更多影响黄土湿陷的因素真实地参与评价,可应用在黄土高原区域性的城镇防灾规划、城镇工程地质图集的编制和黄土区域湿陷性分析等方面。
Aim A new mathematic model to make an assessment of loess collapsibility based on information diffusion is established.Methods Based on 68 sets of collapsing loess data from geotechnical test in the Loess Plateau,China,in which moisture content,pore ration and compress coefficient are chosen as major affecting factors,the fuzzy relationships between every evaluating elements and collapse coefficient are established by the the information diffusion principle and fuzzy approximate deduction of the fuzzy information optimization processing technology.Results A new mathematic model to make an assessment of loess collapsibility is established. Besides, the method is verified by comparing the calculation with the experimental result of another ten series data of collapsing loess.Conclusion The evaluation results are proved, the characteristics of this method are simple,fast and practical and able to incorporate more factors to assess loess collapsibility objectively,Moreover,it fits the scheme of hazards prevention of extensive area,the organization of urban geological maps and the regional analysis of loess collapsibility.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第1期95-99,共5页
Journal of Northwest University（Natural Science Edition）
基金
陕西省自然科学基金重点资助项目(2001D05)
陕西省科技攻关资助项目 (2003K09 G5)
教育部科学技术重点资助项目(204188)
关键词
黄土湿陷性
信息扩散
模糊信息优化处理
模糊近似推论
loess collapsibility
information diffusion
fuzzy information processing of optimization
fuzzy approximate deduction
