摘要
针对传统土石坝心墙沉降变形统计分析模型存在数据拟合、预测精度不高的问题,提出基于位移变化过程的多项式改进统计分析模型,综合考虑沉降变形特性、土体材料流变特性、自重荷载、以及不同时间荷载作用下的不同填筑层厚土体等多种因素。结果表明,改进模型拟合及预测趋势更符合实际、预测情况更好,可为高土石坝心墙沉降监测数据分析提供新的工具。
In response to the problem of data fitting and low prediction accuracy of statistical analysis model in traditional settlement and deformation characteristics of the core of high earth-rockfll dam,this paper proposes a improved polynomial statistical analysis model based on displacement changes of core of high earth-rockfll dam.The displacement change process of the model comprehensively considers various factors,such as settlement deformation characteristics,rheological properties,self-gravity load,and the different filling layer thickness soil under different time loads.The results shows that the trend of the improved model ftting and forecasting are more realistic and precision.It can provide new tools for the analysis of the monitoring settlement data of core of earth-rockfill dam.
作者
唐腾飞
史鹏飞
林金城
龙益彬
别玉静
周朝阳
Tang Tengfei;Shi Pengfei;Lin Jincheng;Long Yibin;Bie Yujing;Zhou Chaoyang(Guiyang Engineering Corpration Limited,PowerChina,Guiyang 550081,Guizhou)
出处
《陕西水利》
2023年第11期15-17,22,共4页
Shaanxi Water Resources
关键词
高土石坝
心墙
施工期沉降变形
统计分析模型
High Earth-rockfill Dam
core Wall
settlement deformation during construction
statistical analysis model.
