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地震滑坡启程能量转化分析对于后期滑坡动力学研究极为重要,因其影响因素较多,具有模糊性,目前还没有准确的定量计算公式。模糊综合评判法分析模糊问题具有明显的优势,能够综合考虑各种因素给出总体评价。选取地震加速度、岩体结构类型、控制性结构面特征、岩体完整程度、地层岩性、地下水、不利结构面与临空面的夹角7个因素作为地震滑坡启程剧动能量转换大小划分的主要因素,详细分析各个因素对能量转化的影响。采用逻辑分区法确定隶属函数,应用模糊层次分析法(FAHP)确定各因素的权重。在此基础上,运用模糊数学综合评判方法得出能量转化率等级,半定量地确定能量转化率大小。以东河口地震滑坡为例,应用模糊综合评判法对其启程能量转换分析结果客观合理,表明该方法是科学可行的,在同类理论研究中可以借鉴。
Seismic landslide departure energy conversion analysis is very important for the later landslide dynamics research because of its influencing factors and its ambiguity. There is no accurate quantitative calculation formula. Fuzzy comprehensive evaluation of fuzzy problems has obvious advantages, can give a general assessment of various factors. Seismic acceleration, structure type of rock mass, characteristics of controlled structural plane, integrity of rock mass, lithology of ground strata, groundwater, the angle between unfavorable structural plane and ground plane are selected as the energy conversion magnitude of seismogenic landslide The main factors, a detailed analysis of the impact of various factors on energy conversion. The membership function is determined by logical partitioning method, and the weight of each factor is determined by fuzzy analytic hierarchy process (FAHP). On this basis, the energy conversion rate is obtained by fuzzy mathematics comprehensive evaluation method, and the energy conversion rate is semi-quantitatively determined. Taking East Hekou earthquake landslide as an example, the fuzzy comprehensive evaluation method is applied to analyze the departure energy conversion objectively and rationally, which shows that this method is scientifically feasible and can be used for reference in the study of similar theories.