CAJ | 학술논문

通过对危险度与易损度进行耦合分析,结合GIS技术,得出单沟泥石流不同降雨频率下灾害风险度,最终获得了段河坝泥石流沟不同降雨频率下风险分区.结果表明：段河坝泥石流沟总体属于中偏高风险等级,50年一遇最大泥石流冲出量为36.5×104 m3,极高风险区面积为0.01 km2；100年一遇最大泥石流冲出量为196×104 m3,极高风险区面积达到0.13 km2.
통과대위험도여역손도진행우합분석,결합GIS기술,득출단구니석류불동강우빈솔하재해풍험도,최종획득료단하패니석류구불동강우빈솔하풍험분구.결과표명：단하패니석류구총체속우중편고풍험등급,50년일우최대니석류충출량위36.5×104 m3,겁고풍험구면적위0.01 km2；100년일우최대니석류충출량위196×104 m3,겁고풍험구면적체도0.13 km2.
The risk degree and risk rationalization of debris flow hazards in the Duanheba Gully at different rainfall frequencies were obtained by coupling with hazard degree and vulnerability, combined with GIS and the results showed that the risk level of Duanheba Gully is generally high, the maximum runout amount of debris flow that had occurs once in 50 years is 36.5×104 m3, and the extremely high risk area is 0.01 km2. The maximum runout amount of debris flow that happens once every 100 years is 196×104 m3 and the extremely high risk area is 0.13 km2.