论文部分内容阅读
为改进常规双曲线法拟合高速铁路线下工程中的“小量级、波动型”沉降时相关系数较低、预测沉降误差较大的不足,引入基于等效填筑时间修正和坐标变化推导得到的全量双曲线法和TS双曲线法。通过对某单点实测沉降的拟合,对比3种方法的结果差异,分析拟合起讫点的选择对相关系数和预测最终沉降的影响,并在此基础上探讨了各种方法的总体适用性。结果表明,TS双曲线法抗数据波动性强,预测沉降较稳定,在3种双曲线法中最适用于高速铁路工程的沉降拟合。
In order to improve the conventional hyperbolic method to fit the low-level and fluctuating type of submarine project in high-speed railway, the correlation coefficient is lower and the settlement error is larger, and the correction based on the equivalent filling time and the coordinate Variation derived by the total hyperbolic and TS hyperbola method. Through the fitting of a single point of measured settlement, the difference of the results of the three methods is compared, the influence of the choice of starting point and the end point of the fitting on the correlation coefficient and the predicted final settlement is analyzed, and the general applicability of the methods is discussed . The results show that the TS hyperbola method has strong anti-data volatility and predictive settlement, and is most suitable for settlement fitting of high-speed railway projects in the three hyperbolic methods.