多参数曲线拟合模型在隧道监控数据处理中的应用

The application of multi-parameter curve fitting model to the date analysis in the tunnel controlling

监控量测是新奥法开挖隧道的一个重要特征,通过对监控数据的回归分析可以得到围岩变形量与时间的关系式,进而可以用来预测围岩变形,确定二次砌衬的施工时间等。采用多参数曲线拟合模型对相关文献的实测数据进行了回归分析,结果表明:与原文献中采用的模型相比,多参数模型具有更高的吻合度和更小的误差。

An important feature of the modern tunnel construction with the New Austrian Tunnelling Method is the surrouding rock mass deformation measurement.By analysising the dates of tunnel controlling,the surrouding rock mass deformation-time relationcurves is gotten.So,the surrouding rock mass deformation can be forecasted and the time for the construction of secondrary lining can be determined by the relationcurves.The multi-parameter curve fitting model is used to analysis the measured date in related documents,and the result indicates that the speculated date from multi-parameter model are more closely to the measured date than the model in related documents.