基于灰色系统理论的基坑变形预测研究

Research on Predicting Deformation of Foundation Pit Based on Grey System Theory

由于基坑变形是多因素作用的结果,而其变形系统的实质是一个灰色系统,所以可以采用灰色系统理论对基坑变形进行预测。根据灰色系统理论,建立了基坑变形的GM(1,1)预测模型,并利用某工程的实际监测资料对未来基坑变形进行预测,结果与实测值吻合较好,证明了该预测模型具有较好的精度,对指导基坑工程的信息化施工有积极意义。

Because the deformation of foundation pit is caused by the effect of many factors, and the deformation system of foundation pit is essentially a grey system, so the deformation of foundation pit can be predicted by the grey system theory. According to the grey system theory, the grey prediction model GM（ 1,1 ） for deformation of foundation pit is established, and the later deformation of foundation pit is predicted by the field monitoring data of a project. The prediction results conform to the observed value. It is proved that the prediction model gives rather good result. It has positive significance for directing information--based construction of foundation pit.