中文摘要：

目的研究灰色理论在基坑桩顶水平位移预测的应用,进而全面反映基坑的安全状况,确保基坑的稳定性.方法笔者以沈阳铁路局调度所改扩建工程项目为研究对象,运用灰色理论对监测数据进行分析,建立GM（1,1）模型,对桩顶水平位移进行预测.结果GM（1,1）模型预测精度为二级,能够达到合格的标准.残差序列最小值为0.03 mm,最大值为0.2 mm,达到了仪器监测的精度.数据的均值处理能够使预测精度为四级的模型提高到精度为二级,二级精度提高到一级精度.结论基于灰色理论的基坑桩顶水平位移分析与预测是恰当而实用的,具有较高的可靠性.灰色预测较为客观地反映了工程实际情况,具有一定的工程参考价值.

英文摘要：

Research of grey theory in the foundation pile top horizontal displacement prediction of the application,which fully reflect the status of the safety of the foundation pit,to ensure the stability of foundation pit. The author＇s research object is from shenyang railway reconstruction project.Using the gray theory analysis of monitoring data,and setting up GM（1,1）model to forecast the displacement of pile top level. The precision of GM（1,1）model to predict precision is secondary,which means to reach the qualified standard. Residual error sequence of the minimum value is 0. 03 mm,and maximum value is 0. 2 mm,meaning that it has reached the monitoring the accuracy of the instrument. The data of average processing can increase the accuracy for level 4 model to precision for level 2,level 2 accuracy to the level 1 of accuracy. Based on grey theory analysis method is appropriate and practical. It has higher reliability. Grey prediction more objectively reflect the engineering actual situation,so it has certain reference value for engineering.