太白县地质灾害隐患点危险性评价——以滑坡为例.doc.doc

西安科技大学 硕士学位论文 太白县地质灾害隐患点危险性评价——以滑坡为例 姓名：贾少杰 申请学位级别：硕士 专业：地质工程 指导教师：杨梅忠 2011  Subject ：Geological Hazards Assessment in Taibai by the Case of Land-slide Specialty ：Geology Enginering Name ：Jia Shao-Jie (Signature) Instructor ：Yang Mei-Zhong (Signature) ABSTRACT Taibai more serious geological disasters, the disaster point of many types and dist -ribution into the film into a zone, quite different scale, impact and controlled by man -y factors, high frequency, small and medium-sized disaster points, which are significa nt to level against disaster points less; because of its complex geological conditions, t er-rain conditions, meteorological and hydrological conditions and a strong new tectoni c movement and human engineering activities, making the area into one of geological disasters counties. In this paper, 2009 Shaanxi Taibai detailed investigation of geological disasters, the task of Taibai geological disasters such as a detailed investigation and laboratory test based on the work, summed up the landslide hazard area and development chara cteristics of point distribution; and the region Point landslide risk assessment carried o ut to study the main contents are: (1) Analysis of the regional landslide hazard point type, size, development charact eristics and formation conditions; landslide hazards in the analysis of survey data point -s based on the study, according to the characteristics of regional landslide hazard poi n-ts to the scale, stability , the number of threats, threats to property, restricting the n u-mber of four risk factors AHP construct the training sample set. (2) application of MATLAB toolbox, called newff () function of neural networks, BP algorithm with momentum SCG training algorithm results were compared to deter -mine the SCG algorithm for training methods. (3) application LibSVM toolbox to implement support vector machine model, by t -he polynom