中文摘要：

结合隧道掘进施工以及变形监测的实际情况,利用灰色预测理论中的GM（1,1）模型,采用等维灰数递补数据处理技术建立等维灰数递补GM（1,1）模型来对灰色GM（1,1）模型进行改进,并结合工程实例中的变形实测数据进行验证。结果表明：修正模型的建立所需数据少,计算方法简单易行,而且预测值精度明显提高;灰色建模的数据取样越接近预测点,则得到的模型预测值越接近实际值,一般4次预测值的结果基本接近于实测值,该模型能更真实地反映软弱围岩隧道的变形规律。

英文摘要：

Based on the tunnel excavation in site and the monitored deformation data, a modified gray GM （ 1,1 ） model was presented with the data processing method of equal - dimension gray filling. At last, a compared analysis was addressed with the deformation data measured in site according to a deformation measurement in a soft wall rock tunnel. The results show that this model is easy to operate with a few measured data, and the precision of the prediction value improves greatly; the results will be more exact if the sampling data of the model are near the predicted results, and the fourth predicted results are basically equal to the measured values. This modified model can reflect the deformation rule in the soft wall rock tunnel more realistically.