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泥石流危险性评价是一个复杂的问题,它是对区域泥石流危险因子的综合分析评价。为了更科学有效地对泥石流的危险性进行评价,必须将定性与定量描述有机地结合起来,才能获得较为合理的评价结果。可拓学就是一门将定性与定量描述结合起来的科学,它以形式化的模型,探讨事物拓展的可能性以及开拓创新的规律与方法。本文首先简单地分析了物元概念的可拓性,针对研究区域重庆北碚特有的地形特点,选取该区域泥石流发生的山坡坡度、相对高差、流域面积等3个因子作为泥石流地形因素的危险性评价因子,对重庆北碚区秤砣沟8条典型泥石流沟的危险性进行评价,根据这些数据,提出用物元可拓集理论构造泥石流危险性等级标准的物元矩阵和待识别对象与各指标的关联度,获得了客观合理的评价结果。
Debris flow hazard assessment is a complex issue, which is a comprehensive analysis and evaluation of the risk factors of debris flow in the region. In order to evaluate the risk of debris flow more scientifically and effectively, the qualitative and quantitative descriptions must be organically combined to obtain a more reasonable evaluation result. Extenics is a science that combines qualitative and quantitative descriptions. It takes a formalized model to explore the possibilities of things to expand and the rules and methods of innovation. In this paper, firstly, the extensibility of the concept of matter element is briefly analyzed. According to the topographical features of Beibei area in Chongqing, three factors of slope gradient, relative height difference and catchment area of debris flow in this area are selected as the risk factors of debris flow topography Based on these data, the article-element extension set theory is proposed to construct the matter-element matrix and the objects to be identified and the targets to be identified according to the hazard hazard level of debris flow Relevance, access to objective and reasonable evaluation results.