Application of renewal gray GM(1,1) model to prediction of landslide deformation with two case studies

An ordinary GM(1,1) model is generally useful for short-term prediction.Considering the deficiency of the GM(1,1) model,an gray information renewal GM(1,1) model of landslide is established.The model is applied to predict the landslide of the Xiangjiapo and Lian Ziya hazardous rock masses(GA).The results show that the precision of prediction is relatively high and the prediction error is comparatively low.