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

摘要： 有效预测崩塌灾害致灾区域及其危险性，为合理规划土地资源、实施崩塌防灾减灾提供重要指导借鉴。遴选斜坡坡形、坡度、坡高、下垫面岩土性质、落石质量、落石形状和落石的岩性条件等7 个因子作为崩塌区域致灾危险性评价指标; 通过指标量化，采用广义集对分析法和层次分析法相结合，确定了崩塌区域致灾危险性评价指标权重;采用同、异、反联系测度提出了落石停积在各承灾区的可能性评价模型，并根据落石停积位置的预期概率将崩塌致灾危险性分为极高危险、高危险、中危险、低危险和极低危险等5 个危险性等级。最后通过现场落石试验，验证了危岩崩塌区域危险性广义集对-层次耦合评价方法的合理性

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