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时变参数灰色模型在隧道地表沉降中的应用
Application of Grey Modal with Time-Varying Parameters Characters in Tunnel Surface Settlement
【摘要】 结合地下隧道施工的特点,在常规灰色模型的基础上采用多项式拟合a(t)和b(t),进一步体现了预测模型的时空变化特性。模型应用于隧道施工中的地表沉降预测,得到了较好的效果。
【Abstract】 Based on the analysis of the tunnel construction process and the shortcoming of the classic grey model,a new prediction method with bivariate polynomial a(t) and b(t) is proposed.Not only the spatial character but also the time-varying character are considered,and the forecasting precision of underground settlement is effective in the practical application.
【关键词】 盾构;
时变参数;
地表沉降;
变形预测;
【Key words】 shield structure; time-varying parameters; surface settltment; deformation forecasting;
【Key words】 shield structure; time-varying parameters; surface settltment; deformation forecasting;
【基金】 河南省自然科学研究计划项目(200642001)
- 【文献出处】 水电能源科学 ,Water Resources and Power , 编辑部邮箱 ,2006年02期
- 【分类号】U455.4
- 【被引频次】20
- 【下载频次】175