日地沟泥石流危险性的模糊数学法评价

日地沟泥石流位于四川省康定县炉城镇大河沟村境内,是一条高频中等规模的泥石流沟。该泥石流严重威胁着沟口的居民生活以及交通状况等各方面的安全。在对日地沟进行调查研究的基础上,运用模糊数学方法对日地沟泥石流的危险性进行评价,且通过数量化的评价来确定此方法的可行性。根据实际情况采用灰色关联法求出的权重,以及对泥石流的隶属函数采用五值逻辑分区,将泥石流的评价划分为5个等级,准确地反映出泥石流的危险程度,从而能更准确和客观地评价日地沟区域泥石流的危险性。

Evaluation on Fuzzy Mathematics Method for Analyzing Risk of Ridigou Debris Flow

Ridigou Debris Flow is located in Dahegou Village, Lucheng Town, Kangding County, Sichuan Province, is a high-frequency medium-scale of debris flow gully.The debris flow is seriously threatening the residents’ life and traffic conditions and other aspects of safety.Based on investigation and research on Ridigou, the fuzzy mathematics method is adopted to evaluate the risk of Ridigou debris flow research;and the quantification of evaluation is adopted to determine the feasibility of this method.According to the actual situation, the grey correlation method is adopted to calculate weight, and the subordinate function of debris flow is subject to logical partitions.The evaluation of debris flow is divided into five grades, which accurately reflect the hazard level of debris flow, so as to evaluate the degree of risk of debris flow in Ridigou more accurately and objectively.