论文部分内容阅读
针对土地防灾适宜性评价复杂性、非确定性和动态性特征,以地表破裂危险性、砂土液化、软土震陷、崩塌滑坡、地震工程地质分区、场地类别为评价指标,设计并建立了以集对分析和Vague集理论为基础的耦合式土地防灾适宜性评价体系,并在评价体系中引入了变权模型。为了证明该耦合模型的适用性,文中对10组场地数据进行了示例验算,并与专家分析法、常权层次分析法等方法进行对比分析。其评价结果显示,耦合模型具有很好的稳定性,辨识结果更为精确,表明该方法具有较高的准确性和良好的实用性。
Aiming at the complexity, non-determinacy and dynamic characteristics of land suitability assessment, this paper designs and establishes the evaluation index of surface rupture risk, sand liquefaction, soft soil subsidence, landslide collapse, earthquake engineering geological division and site category Based on the set pair analysis and the Vague set theory, a coupled land disaster prevention suitability evaluation system is introduced, and a variable weight model is introduced into the evaluation system. In order to prove the applicability of this coupling model, 10 sets of site data are checked and compared with the expert analysis method and the usual analytic hierarchy process. The evaluation results show that the coupling model has good stability and the identification results are more accurate, indicating that the method has high accuracy and good practicability.