The engineering practice proves that MGM(1,n) model possesses rather better precision and forecast reliability comparing with GM(1,1) model,which will have positive influence on settlement prediction.

• 工程实例显示,与单变量GM(1,1)模型相比,MGM(1,n )模型有较好的精度和预测可靠度,对沉降预测有一定指导意义。