Rockfill Dam Settlement Data:Processing and Statistical Analysis
The operational safety of large dams is based on both visual inspections and measurements of important parameters in order to monitor their actual behaviour.Monitoring dam deformations is one of the main tasks in a dam safety monitoring program.Statistical analysis of the monitoring data provides means of comparing response from many instruments.Furthermore, prediction models for early warning can be constructed.Statistical analysis of the recorded data should thus be an integral part of a comprehensive safety monitoring program.However, the monitoring data is often imperfect and has to be processed to fulfill the necessary criteria for statistical analysis.The case studied in this paper is the 198 m high Kárahnjúkar concrete faced rockfill dam (CFRD) in Iceland.The instrumentation of the dam with respect to monitoring settlements is described as well as the processing of the settlement data.The data presented extends from the installation of each instrument during the construction of the dam, the first impounding of the reservoir and through five cycles of operation.The data processing aims at producing time series that can be used for statistical analysis of the deformation behaviour of the dam and its effect on stresses and strains in the concrete face slab.
rockfill dam CFRD settlement statistical analysis data processing
Sigtryggsdóttir F.G. Sn(ae)bj(o)rnsson J.Th. Sigbj(o)rnsson R. Grande L.
Reykjavik University, Reykjavik, Iceland EERC, University of Iceland, Iceland / Norwegian University of Science and Technology, Norway Norwegian University of Science and Technology (NTNU), Trondheim, Norway
国际会议
昆明
英文
459-469
2013-11-01（万方平台首次上网日期，不代表论文的发表时间）