Application of Gray GM (2, 1) Model to Prediction of Landslide Deformation
详细信息
- 责任者：Wang Dong (Southwest Research Institute Co. ; CREC ; Chengdu 610031 ; China) ; Huang Xin
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2013
- 卷期：40(3)
- 关键词：滑坡 ; landslides
- 页码：p.121-125
- 图表：illus., 4 tables, 11 refs.
- 分类号：1702
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
An ordinary gray GM(1,1) model is generally used for landslide deformation prediction,while the GM(2,1) model is used less.It is found that taking different lengths of data series,the model and the predictions are also different in the actual modeling.In response to the above problems,this paper examines the best length of data series of the Baidianzi landslide and uses gray prediction model.The GM(2,1) model of the landslide deep displacement is established for prediction and compared with the prediction of the GM(1,1) model.The results show that the precision of GM(2,1) model prediction is relatively high and the prediction error is comparatively low.
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