摘要
滑坡危险性评价影响因素较多,且多具模糊性和不确定性,目前对滑坡危险性评价主要采用定性的专家打分法,具有一定的主观性.基于以上考虑,在分析滑坡形成影响因素的基础上,运用层次分析模型量化了各影响因素的权值向量,并将该权值向量引入模糊综合评价,建立了基于层次分析-模糊综合评价的滑坡危险性评价数学模型.在此基础上,通过对万州区青草背1号滑坡危险性评价,与传统的稳定性计算方法在3种不同工况下的比较分析,验证了运用该模型进行滑坡危险性评价的合理性与可靠性.工程应用结果表明,该方法既降低了勘察的成本,又避免了个人主观臆断所带来的弊端.
Landslide risk evaluation influenced by so many factors, has fuzzy and uncertain characters; atpresent, risk appraisal in landslide mainly uses the qualitative experts marking law, with certain subjectivityto the results. With regard to these above considerations, based on analyzing influencing factors of landslidedevelopment, the weight vectors of these factors are quantified using analytic hierarchy process（AHP） model.And then the weight vectors are introduced into fuzzy comprehensive evaluation; and a mathematical modelbased on AHP and fuzzy comprehensive evaluation（FCE） is established for landslide risk evaluation. According to these discussions, through evaluating the Green Grass Back NO. 1 landslide＇s risk in Wanzhou District,comparing with the traditional stability calculation method in three kinds of work conditions; and the applica-tion of the model to landslide risk evaluation is verified legitimately and credibly. Project application result indicates that the method reduces the cost; and the disadvantages of personal subjective iudgment are avoided.
出处
《三峡大学学报（自然科学版）》
CAS
2008年第2期43-47,共5页
Journal of China Three Gorges University：Natural Sciences
关键词
层次分析法
模糊综合评价
滑坡
稳定性分析
危险性评估
analytic hierarchy process
fuzzy comprehensive evaluation
geological disaster
stability analysis
risk appraisal
