CAJ | 학술논문

重庆市北碚区是泥石流地质灾害主要高发区，其暴发受降雨条件、物源条件、地形地貌、地质构造、沟谷特征和植被等内外因素的制约。为有效评价各泥石流灾害暴发的危险性，依据重庆市北碚区泥石流灾害暴发的诸多影响因素，首先基于因子分析法对30条典型泥石流沟的大量数据进行了主因子判定，确定了地形地貌和物源条件、植被覆盖度、最大降雨量3个主因子，然后利用快速聚类法对各主因子综合得分进行聚类分析，进而根据聚类分析结果判定了各泥石流爆发的危险程度等级。危险性评价结果显示，重庆市北碚区30条泥石流沟中，暴发极度危险的有1条、高度危险的有3条、中度危险的有21条、低度危险的有5条，评价结果与各泥石流灾害爆发的实际情况相吻合。
중경시북배구시니석류지질재해주요고발구，기폭발수강우조건、물원조건、지형지모、지질구조、구곡특정화식피등내외인소적제약。위유효평개각니석류재해폭발적위험성，의거중경시북배구니석류재해폭발적제다영향인소，수선기우인자분석법대30조전형니석류구적대량수거진행료주인자판정，학정료지형지모화물원조건、식피복개도、최대강우량3개주인자，연후이용쾌속취류법대각주인자종합득분진행취류분석，진이근거취류분석결과판정료각니석류폭발적위험정도등급。위험성평개결과현시，중경시북배구30조니석류구중，폭발겁도위험적유1조、고도위험적유3조、중도위험적유21조、저도위험적유5조，평개결과여각니석류재해폭발적실제정황상문합。
Beibei district in Chongqing City is the primary area where debris flow hazard always occurred,and the outbreaks of debris flows are controlled by the rainfall,material source conditions,geographical conditions, geological structure,valley characteristics,vegetation and other internal or external factors.In this paper,in or-der to evaluate effectively the outbreak risk of debris flows in Beibei district,according to many factors of debris flows outbreak,and based on the method of factor analysis,massive data of 30 typical debris flows was ana-lyzed,and the three main factors of debris flow were classified,which contains topography and material source conditions,vegetation coverage,maximum rainfall.And then,the clustering analysis about main factors score was carried out by the fast clustering method.Meanwhile,the outbreaks danger degree of debris flow hazard was determined.The evaluation results were consistent with the actual occurrence of these debris flows in Beibei dis-trict of Chongqing City,which show that one debris flow is extremely risk,three debris flows are high risk, twenty-one debris flows are moderate risk,and five debris flows are low risk.