改进灰色模型对路基沉降预测的应用研究  

Application of Improved Gray-model in the Settlement Prediction of Roadbed Foundation

作　　者：刘军勇[1] 薛晖[1] 吴德军[1] 

机构地区：[1]长安大学研究生部,陕西西安710054

出　　处：《岩土工程技术》2005年第2期59-62,68,共5页Geotechnical Engineering Technique

摘　　要：讨论了灰色系统理论在路基沉降预测中的应用 ,并对等间隔的灰色模型GM(1,1)进行了改进 ,建立了任意间隔的非时序改进灰色模型。通过具体工程实践 ,给出了两种模型对路基沉降量预测结果与实测结果的比较 ,表明改进灰色模型的预测沉降量与实际沉降量更接近 ,精度更高 。The application of gray system theory in the settlement pr ediction of roadbed foundation is discussed.Some improvements on the res trictive equal model GM(1,1) are made and the nonrestrictive unequal inter val model is built.With the help of practical projects,the prediction results of the two kinds of models are also compared,it’s showed that the i mproved GM(1,1)has been more effective,suitable,and the out?come precision can meet the practical need even more.

关 键 词：道路工程 沉降 改进灰色模型 灰色预测 

分 类 号：TU433[建筑科学—岩土工程]