Rockfill Dam Deformation Monitoring Model Considering Rheology Effect and Stress Path

摘要：

The deformation of rockfill dam is significantly influenced by water level change and time factor.Studying the influence of rheological deformation of rockfill dam and water level change traits can offler scientific approaches for deformation forecast.Based on the deduction of geotechnical uniform rheological formation combined with amendment elastic-viscoelastic model and the stress status characteristics of faced rockfill dam,the time effect component embodying rheological property of rockfill and water pressure component reflecting stress path is established,respectively,which provides a theoretical foundation for water pressure factor and time factor selection for the statistic model. On the basis of the formations established above,this paper gives a time series evolution deformation monitoring model of rockfill dam under the action of multiple factors. An engineering case analysis indicates that the proposed model,compared with traditional statistic model,can enhance regression precision,and thus,it has practical value and can be popularized for deformation forecasting of rockfill dam.

关键词： rheological rockfill dam stress path,deformation monitoring model

作者: Wu Haizhen Li Rongfang Wu Xiaobin

作者单位: Jiangxi Water Conservancy Science Academy,Nanchang 330029,China

会议类型: 国际会议

会议名称: The 1st International Symposium on Rockfill Dams(第一届堆石坝国际研讨会)

会议地点: 成都

会议语种:英文

页码: 759-766

在线出版日期: 2009-10-18（万方平台首次上网日期，不代表论文的发表时间）