灰色关联分析在跨断层形变异常干扰因素评价中的应用

Application of Grey Relational Analysis in Evaluation of Cross-fault Deformation Anomaly Interference Factors

采用跨断层场地垂直形变观测数据和气象站气象数据等资料,利用灰色关联分析法构建了适于本类数据的灰色关联模型,对影响因素与形变值之间的关联度进行了研究,同时提出了一个关联度评价模型用于计算关联度阈值,将计算所得的关联度与阈值进行比较来筛选干扰因素。通过对窝子滩场地和大泉口场地计算的结果进行分析,结果表明该模型能在一定程度上定量确定干扰因素对形变的影响程度,可应用于跨断层监测场地的形变分析。

Using the vertical deformation observation data of cross-fault site and meteorological data of meteorological station,we build a grey relational model for this kind of data by the grey relational analysis method,and study the associated degrees betw een effect factors and deformation value. At the same time,we also present an associated degree evaluation model for calculating the threshold value of associated degree,and compare the calculation proceeds of associated degrees with threshold value to filter the interference factors. Through analyzing the calculating results of Wozitan and Daquakou observation sites,the result indicates that the obtained model can quantifiably determined the effect of interference factor on the deformation to a certain degree,which can be applied to the deformation analysis of other cross-fault monitoring sites.