露天矿边坡变形是一个复杂的系统,许多影响边坡变形的因素具有灰色信息性质,因此应用灰色模型对边坡变形进行预测是一种很好的研究手段。在灰色模型预测实践中,发现建模数据的维数对模型预测精度有较大影响。从变形预测精度研究入手,提出最佳维数建模法。通过实例应用证明,该法具有较高的预测精度和可信度。 The deformation of open pit slope is a complex system. Many of the factors that affect the deformation of slope are gray information. Therefore, it is a good research method to predict slope deformation by using gray model. In the gray model prediction practice, it is found that the dimension of the modeling data has a great influence on the prediction accuracy of the model. Starting from the study of deformation prediction accuracy, the optimal dimension modeling method is proposed. The example shows that this method has high prediction accuracy and reliability.