关键词: 崩塌区域, 危险性评价, 广义集对-层次耦合评价方法, 落石运动现场试验

Abstract: The rockfall zoning and its risk is effectively predicted，which provides some important reference guide for the planning of reasonable land resources and implementation of disaster prevention and reduction. Seven factors are selected as risk assessment indexes in collapse zoning: slope shape，slope angel，slope height，rock properties of underlying surface，rockfall quality，rockfall shape，lithologic condition of rockfall. Through index quantification，the coupling between generalized set pair analysis and analytic hierarchy is adopted to determine the assessment index weight of hazard risk in collapse zone. Through the identity，difference，and opposition degree of association，the probability assessment model of rockfall stopped in each bearing disaster zone is constructed. And according to the expectant probability for the stop position of rockfall，rockfall risks are divided into five grades: extremely high risk，high risk，medium risk，low risk and extremely low risk. Based on the field experiment of rockfall，it is verified the rationality of the assessment method about the coupling between generalized set pair analysis and analytic hierarchy process of risk in rockfall zone.

Key words: rockfall zone, risk assessment, the assessment method about the coupling between generalized set pair analysis and analytic hierarchy, the field experiment of rockfall