改进后的灰色模型对围岩变形的预测分析  

Prediction Analysis of Surrounding Rock Deformation by the Improved GreyModel

作　　者：崔炫[1] 

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550081

出　　处：《交通科技》2015年第5期68-71,共4页Transportation Science & Technology

摘　　要：通过将灰色理论引入围岩变形预测,得出GM模型和改进后的GM模型都能够很好地预测围岩的变化规律。GM模型的预测精度取决于断面的复杂程度,基于背景值改进后的模型对初始模型的改进程度由初始模型的预测精度决定,对于复杂的断面,基于背景值改进后的模型预测精度更好,更加适合。Through the deformation prediction of surrounding rock by grey theory,we found that the GMand the improved GM could get the great result of predicting the change rule of surrounding rock.The accuracy of prediction by GM depended on the complexity of the section.Based on background value,the improved model for the improvement degree of initial model was depended on the prediction accuracy of the initial model.For the complex section,the improved model was better and more suitable for prediction of surrounding rock.

关 键 词：灰色模型 背景值改进 围岩变形 围岩复杂程度 

分 类 号：N941.5[自然科学总论—系统科学]