基于灰色模型的基坑变形预测评价

Evaluation on Deformation Prediction of Foundation Pit Based on Grey Model

基坑开挖施工必然会引起基坑以及支护结构的变形稳定问题,采用灰色系统预测理论建立了深基坑变形的非等时距GM(1,1)预测模型,利用某工程实例的实际监测数据对基坑各阶段的变形进行预测,通过对预测成果与实际值的对比分析,对应用灰色模型预测基坑变形给予了评价。

The deep excavation always causes the problems of deformation and stability of the foundation pit and bracing structure. The unequal time interval Grey Model GM（1,1） for deformation prediction of the foundation pit is established based on the gray system theory. The deformation prediction of the foundation pit is made with the monitoring data of the various stages of a project. Through comparison and analysis on the predicted and actual values, the application of the grey model in the deformation prediction of the foundation pit is evaluated.