高速铁路在特殊地区工后沉降的预测研究

Research on Prediction of Settlement in the Special Area after Construction of High-speed Railway

南方地区由于特殊地理环境影响,使得高速铁路建设中的软土地基工后沉降问题显得非常突出。通过对双曲线模型和指数曲线模型进行对比,发现双曲线模型能较好的预测软土地基工后沉降。应用该方法预测了南方某高速铁路工程中软土地基工后沉降,并对其进行了检验。结果表明,双曲线法预测高速铁路软土地基工后沉降数据利用率高、偶然性小、误差低、可靠度高、计算简便,能较准确的预测特殊地理环境下地基工后沉降。

Due to the special geographical environment in the south, the post-construction settlement of soft soil foundation in the construction of high speed railway is prominent. Through comparing the hyperbolic model and exponential curve model, it finds hyperbolic model can better predict the soft soil foundation settlement after work. The method was applied in the prediction of post-construction settlement of soft soil foundation in the construction of high speed railway, and tested. The result shows that the prediction of post- construction settlement of soft soil foundation in the construction of high speed railway by using hyperbolic model has the advantages, such as high usage, low contingency, low error, high reliability, and simple utilization.