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崩塌灾害危险性评价方法及应用

DOI: 10.3969/j.issn.1674-0696.2013.03.18, PP. 446-450

Keywords: 危岩,危险性,评价指标,评价方法,rockfall,hazard,assessmentindex,assessmentmethod

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Abstract:

:?基于RocFall数值模拟软件,划定落石威胁范围。危岩的自稳能力和致灾能力是导致崩塌具有危险性的两个先决条件,据此遴选崩塌灾害危险性评价指标,通过计算各指标的灰色关联系数,进行相对重要性排序,结合层次-集对分析法求解评价指标的权重值,基于综合指标评价法建立崩塌灾害危险性评价方法,并根据最危险原则法将崩塌区分为极高危险、高危险、中危险和低危险4个等级。将此方法应用于巫山望霞危岩,评价得出望霞危岩属于高危险,与实际情况吻合良好。

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