论文部分内容阅读
城际铁路为保证线路的高平顺性,对桥梁、路基、涵洞、隧道、过渡段等线下工程沉降量有着严格的要求,必须进行沉降预测评估。基于实测数据的沉降预测方法主要有曲线拟合法、灰色系统分析模型等,本文首先对多种预测方法进行对比分析,然后综合考虑曲线拟合法与GM(1,1)模型的优点,提出一种基于GM(1,1)模型数据的曲线拟合预测方法,并通过武咸城际铁路工程实例验证,说明该方法用于城际铁路线下工程沉降预测是可行的。
In order to ensure the high ride comfort of the line, the inter-city railroad has strict requirements on the settlement of submarine projects such as bridges, embankments, culverts, tunnels and transition sections, and the settlement prediction and evaluation must be carried out. The main methods of settlement prediction based on measured data are curve fitting method, gray system analysis model and so on. In this paper, firstly, comparing and analyzing a variety of forecasting methods, and then taking into account the advantages of curve fitting method and GM (1,1) model, The curve fitting prediction method based on GM (1,1) model data is verified by an example of Wu-Xiang intercity railway project, which shows that this method is feasible for subsidence prediction of inter-city railway line project.