摘要
根据灰色系统理论,可以将公路隧道的沉降过程看做一个灰色系统。本文对传统的GM(1,1)模型中的初始值、背景值进行改进,得到改进的GM(1,1)模型,并将其应用到公路隧道的沉降预测中。通过实例验证,改进的GM(1,1)模型的模拟和预测精度比传统的GM(1,1)模型有显著提高。
According to the grey system theory, the settlement process of highway tunnel is regarded as a grey system.. The initial value and background value of the traditional GM（1,1） model are optimized firstly. The improved GM（1,1） model is applied to the settlement forecast of highway tunnel. Through the example, the results show that the improved GM（1,1） model has a higher fitting and prediction precision than the traditional model.
出处
《北京测绘》
2014年第1期49-51,74,共4页
Beijing Surveying and Mapping
关键词
GM(1
1)模型
初始值
背景值沉降预测
GM（1,1） model initial value background value time response sequence settlement forecast
