灰关联分析法在岩溶稳定性分类中的应用

为了验证灰关联分析法在岩溶稳定性等级评价中的适用性,通过对大量岩溶实例的分析和总结,选取了岩性系数、岩体结构系数、地下水系数、覆盖系数、地形地貌系数、环境条件系数共6个指标作为序列变量指标;将12个岩溶样本的前5个作为比较因素序列,后7个作为参考序列,验证了用灰关联分析法所得到的岩溶稳定性等级与实际等级的一致性;最后应用该法对7个岩溶样本进行稳定性等级预测。结果表明:灰关联分析法作为工程地质类比分析的量化手段,其预测结果和目前广泛使用的Fisher判别法、SVM法、ANN法等方法预测的结果相吻合。

The Application of Gray Relational Analysis in the Classification of Karst Stability

In order to verify the applicability of the gray relational analysis in karst stability assessment,selected rock quality coefficient,rock mass structure coefficient,ground water coefficient,soil stratum coefficient,landform physiognomy coefficient and environment condition coefficient as variable indicators of sequence through the analysis and summary of a large number of karst instance.Verified the consistence of the karst stability level by gray relational analysis and actual level when regarding the first five karst samples as system characteristic sequence and the last seven as relevant factors sequence.Finally,applying the method to predict the stability level of two karst samples.The result shows that the forecast result of gray correlation analysis coincides with that of the widely used methods of Fisher,SVM and ANN as the means of quantitative analysis on the engineering geological analogy.